web based tool for managing paddy irrigation water user group

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@ IJTSRD | Available Online @ www ISSN No: 2456 Interna Rese Internationa and Info Web Based Tool for Ma Deepa 1 Associate Profess Linton Universi 2 G & P Water Sdn Bhd, Wis ABSTRACT In many countries, the Internet has element in people’s daily life, o possibilities for information access an this new technological and information becoming a source of conflict betwe industrial and agricultural use. Web Ba platform allowing for a public participat decision making processes during situations, especially in cases inv stakeholders. A 3 – tier architecture fr carefully studied and was implemented Web based model. This model is an I Model that is created to benefit the user management sectors in order to make tim to develop the water user group’s in tertiary canal. This system has been developed to estimate the water prod and pH of soil on a micro scale based canal water user groups with the alongside to allocate water without w system has the ability to provide access with password who has the technical connect to the Internet, hence bridgin divide between rural and urban commun Keywords: Internet, Web, Water Manag Productivity Index, PH, Decision Makin 1. INTRODUCTION In many countries, the Internet has element in people’s daily life, o possibilities for information access and s same time there are growing concerns technical specialists and government of be involved in decision making as w.ijtsrd.com | Special Issue Publication | Novem 6 - 6470 | www.ijtsrd.com | Special ational Journal of Trend in Scientific earch and Development (IJTSRD) al Conference on Advanced Engineeri ormation Technology (ICAEIT-2017) anaging Paddy Irrigation Wate ak T. J. 1 , Chong S. F. 2 , Lim S. P. 2 sor, Dean Faculty of Engineering and Technolog ity College, Mantin, Negeri Sembilan, Malaysia sma G & P, Bandar Tasik Selatan, Kuala Lumpu s become an offering new nd sharing. In n age, water is een domestic, ased Tool is a tion in helping g conflicting volving many ramework was d to create the Internet Based rs in the water mely decisions nline with the n successfully ductivity index on the tertiary plot numbers wastage. This s to those users capabilities to ng the digital nities. gement, Water ng. s become an offering new sharing. At the s that not only officials should ssociated with utilization of natural resource the society express the willi they also want to be activel making. This creates challenge forms a new situation conf involved in development of m for decision making. WEB PIP system created to enhance the data input as well as decisio recent advancement in the fiel up new challenges as well as o we have been developing mod aids. It is not only the medium and communication but also a develop new generation of emergence of revolutionary te has become possible to devel distributed across differ heterogeneous platform. This application in the food and agr is highly diversified In this technological and inf becoming a source of conf industrial and agricultural use has been exclusively devoted paddy. The total land area pla 600,545 ha of which 340,61 irrigation systems. The rem mainly on rainfall (APO, 1 management is becoming a c importance has been given to and effective management of Water is important for rice irri available in some of the areas mber 2018 P - 12 Issue Publication ing er User Group gy, a ur, Malaysia es. Many groups within ingness and desire that ly involved in decision es to the researchers and fronting those actively models and tools applied PA is a decision support e users to be involved in on making process. The ld of Internet has opened opportunities in the way dels and decision support m of information access a flourishing platform to applications. With the chnology of web, now it lop information systems rent locations and holds great promise for ricultural systems which formation age, water is flict between domestic, e. In Malaysia, irrigation to the cultivation of rice anted with rice is about 18 ha are supported by maining area depends 1991). Irrigation water challenging issue. More owards the improvement water for the irrigation. igation and it is scarcely s. Hence management of

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In many countries, the Internet has become an element in peoples daily life, offering new possibilities for information access and sharing. In this new technological and information age, water is becoming a source of conflict between domestic, industrial and agricultural use. Web Based Tool is a platform allowing for a public participation in helping decision making processes during conflicting situations, especially in cases involving many stakeholders. A 3 tier architecture framework was carefully studied and was implemented to create the Web based model. This model is an Internet Based Model that is created to benefit the users in the water management sectors in order to make timely decisions to develop the water user groups inline with the tertiary canal. This system has been successfully developed to estimate the water productivity index and pH of soil on a micro scale based on the tertiary canal water user groups with the plot numbers alongside to allocate water without wastage. This system has the ability to provide access to those users with password who has the technical capabilities to connect to the Internet, hence bridging the digital divide between rural and urban communities. Deepak T. J. | Chong S. F. | Lim S. P. "Web Based Tool for Managing Paddy Irrigation Water User Group" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Special Issue | International Conference on Advanced Engineering and Information Technology , November 2018, URL: https://www.ijtsrd.com/papers/ijtsrd19112.pdf Paper URL: https://www.ijtsrd.com/engineering/water-resource-engineering/19112/web-based-tool-for-managing-paddy-irrigation-water-user-group/deepak-t-j

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Page 1: Web Based Tool for Managing Paddy Irrigation Water User Group

@ IJTSRD | Available Online @ www.ijtsrd.com

ISSN No: 2456

International Journal of Trend in Scientific Research and

International Conference on Advanced Engineering and Information Technology

Web Based Tool for Managing Paddy Irrigation Water User Group

Deepak T. J.1Associate Professor, Dean

Linton University College, 2G & P Water Sdn Bhd, Wis

ABSTRACT In many countries, the Internet has become an element in people’s daily life, offering new possibilities for information access and sharing. In this new technological and information age, water is becoming a source of conflict between domestic, industrial and agricultural use. Web Based Tool is a platform allowing for a public participation in helping decision making processes during conflicting situations, especially in cases involving many stakeholders. A 3 – tier architecture framework was carefully studied and was implemented to create the Web based model. This model is an Internet Based Model that is created to benefit the users in the water management sectors in order to make timely decisions to develop the water user group’s inline with the tertiary canal. This system has been successfully developed to estimate the water productivity index and pH of soil on a micro scale based on the tertiary canal water user groups with the plot numbers alongside to allocate water without wastage. This system has the ability to provide access to those users with password who has the technical capabilities to connect to the Internet, hence bridging the digital divide between rural and urban communities. Keywords: Internet, Web, Water Management, Water Productivity Index, PH, Decision Making. 1. INTRODUCTION In many countries, the Internet has become an element in people’s daily life, offering new possibilities for information access and sharing. At the same time there are growing concerns that not only technical specialists and government officials should be involved in decision making associated with

@ IJTSRD | Available Online @ www.ijtsrd.com | Special Issue Publication | November

ISSN No: 2456 - 6470 | www.ijtsrd.com | Special Issue

International Journal of Trend in Scientific Research and Development (IJTSRD)

International Conference on Advanced Engineering and Information Technology (ICAEIT-2017)

Web Based Tool for Managing Paddy Irrigation Water User Group

Deepak T. J.1, Chong S. F.2, Lim S. P.2

Associate Professor, Dean Faculty of Engineering and Technology,Linton University College, Mantin, Negeri Sembilan, Malaysia

G & P Water Sdn Bhd, Wisma G & P, Bandar Tasik Selatan, Kuala Lumpur, Malaysia

In many countries, the Internet has become an life, offering new

possibilities for information access and sharing. In this new technological and information age, water is becoming a source of conflict between domestic, industrial and agricultural use. Web Based Tool is a

participation in helping decision making processes during conflicting situations, especially in cases involving many

tier architecture framework was carefully studied and was implemented to create the

Internet Based Model that is created to benefit the users in the water management sectors in order to make timely decisions to develop the water user group’s inline with the tertiary canal. This system has been successfully

productivity index and pH of soil on a micro scale based on the tertiary canal water user groups with the plot numbers alongside to allocate water without wastage. This system has the ability to provide access to those users

ical capabilities to connect to the Internet, hence bridging the digital divide between rural and urban communities.

Internet, Web, Water Management, Water Productivity Index, PH, Decision Making.

In many countries, the Internet has become an element in people’s daily life, offering new possibilities for information access and sharing. At the same time there are growing concerns that not only technical specialists and government officials should

involved in decision making associated with

utilization of natural resources. Many groups within the society express the willingness and desire that they also want to be actively involved in decision making. This creates challenges to the researchers anforms a new situation confronting those actively involved in development of models and tools applied for decision making. WEB PIPA is a decision support system created to enhance the users to be involved in data input as well as decision making process. recent advancement in the field of Internet has opened up new challenges as well as opportunities in the way we have been developing models and decision support aids. It is not only the medium of information access and communication but also a flourishdevelop new generation of applications. With the emergence of revolutionary technology of web, now it has become possible to develop information systems distributed across different locations and heterogeneous platform. This holds great proapplication in the food and agricultural systems which is highly diversified In this technological and information age, water is becoming a source of conflict between domestic, industrial and agricultural use. In Malaysia, irrigation has been exclusively devoted to the cultivation of rice paddy. The total land area planted with rice is about 600,545 ha of which 340,618 ha are supported by irrigation systems. The remaining area depends mainly on rainfall (APO, 1991). Irrigation water management is becoming a challenging issue. More importance has been given towards the improvement and effective management of water for the irrigation. Water is important for rice irrigation and it is scarcely available in some of the areas. Hence management of

November 2018 P - 12

Special Issue Publication

International Conference on Advanced Engineering

Web Based Tool for Managing Paddy Irrigation Water User Group

of Engineering and Technology, Negeri Sembilan, Malaysia

Kuala Lumpur, Malaysia

utilization of natural resources. Many groups within the society express the willingness and desire that they also want to be actively involved in decision making. This creates challenges to the researchers and forms a new situation confronting those actively involved in development of models and tools applied for decision making. WEB PIPA is a decision support system created to enhance the users to be involved in data input as well as decision making process. The recent advancement in the field of Internet has opened up new challenges as well as opportunities in the way we have been developing models and decision support aids. It is not only the medium of information access and communication but also a flourishing platform to develop new generation of applications. With the emergence of revolutionary technology of web, now it has become possible to develop information systems distributed across different locations and heterogeneous platform. This holds great promise for application in the food and agricultural systems which

In this technological and information age, water is becoming a source of conflict between domestic, industrial and agricultural use. In Malaysia, irrigation

lusively devoted to the cultivation of rice paddy. The total land area planted with rice is about 600,545 ha of which 340,618 ha are supported by irrigation systems. The remaining area depends mainly on rainfall (APO, 1991). Irrigation water

becoming a challenging issue. More importance has been given towards the improvement and effective management of water for the irrigation. Water is important for rice irrigation and it is scarcely available in some of the areas. Hence management of

Page 2: Web Based Tool for Managing Paddy Irrigation Water User Group

International Journal of Trend in Scientific Research and Development (IJTSRD) | ISSN: 2456-647

@ IJTSRD | Available Online @ www.ijtsrd.com | Special Issue Publication | November 2018 P - 13

water becomes very important to cultivate rice. A good irrigation water management system has to be provided to give adequate and timely supply of water to improve the crop production. In order to achieve this, it is necessary to have adequate water source, a good conveyance system and good distribution system to distribute the water over the land. The agricultural scientific community has been developing models, databases, expert systems, decision support systems and software. The WEB PIPA is an example of DSS created to provide an effective conduit for the transfer of scientific knowledge from research labs to the end-users to support them in decision making. 2. Study Area The selected study area is the Tanjung Karang Rice Irrigation Project. The project area is located on a flat coastal plain in the Northwest Selangor Agricultural Development Project (PBLS). It is in the districts of Kuala Selangor and Sabak Bernam, which cover an area of approximately 20,000 hectares extending over a length of 40 km along the coast with a average width of 5 km. The main irrigation and drainage canals run parallel with the coast. The Bernam River is the main water source for the project area. Water for the Tanjung Karang scheme is diverted from the Bernam River Head works (BRH), and the Bagan Terap Pump house, situated about 130 km and 62 km respectively upstream of the mouth of the Bernam

River. The project area is divided into eight irrigation compartments and into four Irrigation Scheduled Areas (ISA) as shown in Figure 1below.

Fig 1: Irrigation Scheduling Areas in Tanjung Karang

Irrigation Scheme In the upstream six irrigation compartments from Sawah Sempadan to Sungai Nipah, tertiary canals are directly connected to the main canal. About 50 farm lots are grouped in one sub-block. Out of the 19,247 ha. total area, paddy fields comprise 17,510 ha. The remaining area of about 1,737 ha. comprises vegetable growing 760 ha, tree cropping 460 ha, and idle land 510 ha. The annual yield of paddy is about 166,700 metric tons a year. The schematic diagram of the study area is given below;

Fig 2: Schematic diagram showing the study area with compartment details

Earlier study SMHB (1995) have acquired field data with respect to compartments and have calculated the irrigation parameters, whereas this study has

emphasized data with respect to blocks and calculate the irrigation parameters. For more precise management, tertiary canals and CHO discharges

Page 3: Web Based Tool for Managing Paddy Irrigation Water User Group

International Journal of Trend in Scientific Research and Deve

@ IJTSRD | Available Online @ www.ijtsrd.com

should be considered with respect at block level for calculating the irrigation parameters to properly manage the irrigation scheme. This study mainly emphasized on the application of Internet to acquire more data for a better decision support system. 3. Methodology This is one of the modules that are created along with three other Web based modules to determine the Water Productivity Index for paddy at a particular lot in the block. Fig 3, clearly shows the step by step procedure for analysis of Water User Group WebpModule. Designing this module was very important from researcher’s point of view since most of the water managers and government officials do not know the

Fig 3: Step by Step Procedure for Analysis of Water User Group In this module the beginning stage is to determine the data that has to be stored in database for future use and once it is confirmed, the data has to be collected

International Journal of Trend in Scientific Research and Development (IJTSRD)

@ IJTSRD | Available Online @ www.ijtsrd.com | Special Issue Publication | November

should be considered with respect at block level for calculating the irrigation parameters to properly

e. This study mainly emphasized on the application of Internet to acquire more data for a better decision support system.

This is one of the modules that are created along with three other Web based modules to determine the Water Productivity Index for paddy at a particular lot in the block. Fig 3, clearly shows the step by step procedure for analysis of Water User Group Webpage

Designing this module was very important from researcher’s point of view since most of the water managers and government officials do not know the

net rice yield that is produced and sold by a particular lot in the study area until much later.emphasized in designing a web based program where farmers or farm heads are allowed to key in the accurate yield data from their lots. During this study, farmers reported that it was difficult for them to key in the data through the internet. Keeping this in view, a MS Excel spreadsheet was created for the farmers, so that they could key in the yield data. Once the yield data is keyed into the MS Excel spreadsheet which is based on whole season (Main season/Off season), for a particular subdivided block, it is then accessed through admin id. In admin id, there is an option to directly upload the spreadsheet into the Water User Group Webpage Module.

Fig 3: Step by Step Procedure for Analysis of Water User Group Webpage Module

In this module the beginning stage is to determine the data that has to be stored in database for future use and once it is confirmed, the data has to be collected

which is required for this particular web paIn this module there are two options, one is to key in directly and other option is to upload through MS

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net rice yield that is produced and sold by a particular lot in the study area until much later. This study emphasized in designing a web based program where farmers or farm heads are allowed to key in the accurate yield data from their lots.

During this study, farmers reported that it was difficult for them to key in the data through the

Keeping this in view, a MS Excel spreadsheet was created for the farmers, so that they could key in the yield data. Once the yield data is keyed into the MS Excel spreadsheet which is based on whole season (Main season/Off season), for a

ided block, it is then accessed through admin id. In admin id, there is an option to directly upload the spreadsheet into the Water User

Webpage Module

which is required for this particular web page design. In this module there are two options, one is to key in directly and other option is to upload through MS

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International Journal of Trend in Scientific Research and Deve

@ IJTSRD | Available Online @ www.ijtsrd.com

Excel spreadsheet directly through admin page. After data collection, user interface is to be designed according to the requirement; normally a userenvironment is designed. In this study, interactive Web Pages are created for user interface to login using User ID and Password. After login, the data is fed in the correct place and results are obtained. Once the results are obtained, check them for accuracy. If the results are accurate click on the save button and save the data fields in the WEB SQL database. The data stored in the WEB SQL database can be checked, viewed and edited if required in the station user mode (suser). The data can be only viewed in station user1 mode (suser1) and in administrator mode (admin) for this module. Administrator Id has the authority to delete or add more data files through the WEB based program. External data from MS Excel spreadsheet can be directly uploaded through this module to WEB SQL database. In this module the graph reports can be seen through the administrator user id. 3.1 Water Productivity Index: The water productivity index measures effectiveness of the irrigation system in terms of grand the total volume of water applied. The realistic range of the water productivity index should be from 0.30 to 0.60 kg/m3. In order to increase the rice yield per hectare and also to upgrade the water use efficiency, it is very much important to improve the water productivity index. It is expressed below,

WPI: Water Productivity Index Y: Yield Qs: Discharge 3.2 PH Value: The pH of the soil affects plant production. Irrigation water or precipitation can change the pH of the soil overtime. Nutrients present in the soil may be unavailable to the plants due to a pH that is either too high or too low. Here PH is expressed by coto Ec of shallow soil.

PH = 4.899 – 0.0042 ECas + 1x 10 3.3 WEB Based Water User Group DSSThis system is a standalone executable application. A 3 – tier architecture framework was carefully studied and was implemented to create the system. Web model is an Internet Based System that is created to

International Journal of Trend in Scientific Research and Development (IJTSRD)

@ IJTSRD | Available Online @ www.ijtsrd.com | Special Issue Publication | November

Excel spreadsheet directly through admin page. After data collection, user interface is to be designed

ly a user-friendly environment is designed. In this study, interactive

created for user interface to login using User ID and Password. After login, the data is fed in the correct place and results are obtained. Once

check them for accuracy. If the results are accurate click on the save button and save the data fields in the WEB SQL database.

The data stored in the WEB SQL database can be checked, viewed and edited if required in the station

a can be only viewed in station user1 mode (suser1) and in administrator mode (admin) for this module. Administrator Id has the authority to delete or add more data files through the WEB based program. External data from MS Excel

y uploaded through this module to WEB SQL database. In this module the graph reports can be seen through the administrator

The water productivity index measures effectiveness of the irrigation system in terms of gross rice yield and the total volume of water applied. The realistic range of the water productivity index should be from

. In order to increase the rice yield per hectare and also to upgrade the water use

important to improve the water productivity index. It is expressed below,

The pH of the soil affects plant production. Irrigation water or precipitation can change the pH of the soil overtime. Nutrients present in the soil may be unavailable to the plants due to a pH that is either too

H is expressed by correlating

+ 1x 10-4ECas2

WEB Based Water User Group DSS This system is a standalone executable application. A

tier architecture framework was carefully studied and was implemented to create the system. Web model is an Internet Based System that is created to

benefit the users in the water management sector order to make timely decisions on irrigation water supply. Web Model has the ability to provide almost unlimited access to information to everybody, who has the technical capabilities to connect to the Internet. This makes Web model particularly suitablfor providing and disseminating information relevant to decision making processes concerning management of irrigation water resources. Specifically, Web model may be seen as a platform allowing for a public participation in resolving decision making procinvolving many stakeholders and different water user groups. In such situations, access to neutral and unbiased source of information about consequences of possible policy and/or management strategies may contribute to constructive dialogue between pinvolved and consequently help to overcome differences of positions dividing the parties and reach (if not an agreement), then at least reasonable compromise.

Fig 4: Web Based Water User Group Model 4. Results The results derived from the program major boost for the decision makers to make precise decisions on issues concerned to the Water User Group. The input parameters that are to be fed in to the program and output parameters obtained are shown in the figure 5.

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November 2018 P - 15

benefit the users in the water management sector in order to make timely decisions on irrigation water supply. Web Model has the ability to provide almost unlimited access to information to everybody, who has the technical capabilities to connect to the Internet. This makes Web model particularly suitable for providing and disseminating information relevant to decision making processes concerning management of irrigation water resources. Specifically, Web model may be seen as a platform allowing for a public participation in resolving decision making processes involving many stakeholders and different water user groups. In such situations, access to neutral and unbiased source of information about consequences of possible policy and/or management strategies may contribute to constructive dialogue between parties involved and consequently help to overcome differences of positions dividing the parties and reach (if not an agreement), then at least reasonable

Fig 4: Web Based Water User Group Model

The results derived from the program would be a major boost for the decision makers to make precise decisions on issues concerned to the Water User Group. The input parameters that are to be fed in to the program and output parameters obtained are

Page 5: Web Based Tool for Managing Paddy Irrigation Water User Group

International Journal of Trend in Scientific Research and Development (IJTSRD) | ISSN: 2456-647

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Fig 5: Input and Output Parameters for Web Based

Water User Group The Water User Group model is created to determine the Water Productivity Index (WPI) and pH value in the webpage. Figure 5, shows the input parameters and output parameters clearly. The MS Excel spreadsheet will be uploaded through this webpage with administrator id only as an input. Output parameters are viewed in the webpage through the Web SQL database in all three different user modes. Figure 6 illustrates the results of water user group webpage outline for the admin users. The results shown here can only be viewed. The administrators will not be able to edit this webpage. The input parameters are uploaded through MS Excel database in the administrator mode. The uploaded data can be viewed in the above shown format in this webpage option.

Fig 6: Web Page showing the results for Web Based

Water User Group

Fig 7: WUG Report Webpage

Figure7 illustrates the WUG report webpage option for the admin users. In this page the administrator selects the compartment, block name, season and year which is denoted by season value. Once the block name is typed in the text box, there is scroll down option where the subdivision of the block (for example: Block C, sub blocks C1left, C1right, C2left and C2right) can be entered. After entering the required parameters by clicking the show report button and the graph report can be viewed on this same webpage 5. Conclusion The Web based system has been successfully developed to estimate the water productivity index (once in 6 months frequency?) and pH of soil (who measures? How? Frequency? Actions after measurements?) on a micro scale based on the tertiary canal water user groups with the plot numbers alongside to allocate water without wastage (How is wastage reduced with this web-based module?). The “Water User Group” module was developed to give information on various parameters such as Water Productivity Index and pH value of soil. This module helps the decision makers in understanding the status of the plot based on the Water supplied and the Water Productivity Index achieved for a particular season. This module also shows the pH value of the soil for the particular season. Based on the results obtained the decision makers can conclude various aspects and from there future decisions made on Water allocation should benefit the farmers. This Web based system is particularly suitable for providing and disseminating information relevant to decision making processes concerning management of irrigation water (How? Been practiced then? Still been used to-date? How to know the water supplied to

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International Journal of Trend in Scientific Research and Development (IJTSRD) | ISSN: 2456-647

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each plot? Useful to compute Irrigation Efficiency of block and plot if water supplied could be measured). The Web based platform allows public participation in assessing the water productivity index and pH of soil. It also has the ability to provide access to those users with password who has the technical capabilities to connect to the Internet, hence bridging the digital divide between rural and urban communities. Decisions made by people who have contributed in its making will be better accepted and implemented towards an improved productivity. 6. Acknowledgements Authors would like to thank the Linton University College and its group of institution’s Top Management for their continuous support. University Putra Malaysia and G&P Water and Maritime is also acknowledged for their continuous support 7. References 1. APO, Asian Productivity Organization.

Management of Irrigation Facilities, Pg 227. (1991).

2. Booch, G., Object-Oriented Analysis and Design With Applications, Second Edition, The Benjamin/Cummings Publishing Company, Inc., Redwood City, California, (1994).

3. Deepak T. J., MSM Amin, Rashid Sharifff, and Rahman Ramli 2010.- Web PIPA (Web based Paddy Irrigation Productivity Assessment)- Decision Support System for Rice Irrigation Water Management, The IUP Journal of Soil & Water Sciences (India), Vol.III.No.2

4. Fathima. Z. S. & Dillaha, T. A, Water Management for Lowland Rice Irrigation. J. Irrigation and Drainage Engineering, ASCE, vol.114, no 3:407-423. (1988).

5. Labadie, J., River Basin Network Model for Water Rights Planning, MODSIM: Technical Manual, Department of Civil Engineering, Colorado State University, Fort Collins, Colorado, (1995).

6. Loucks, D. P., Sigvaldason, O. T., Multiple-reservoirs Operation in North America, in Z. Kaczmarek and J. Kindler (Eds.) The Operation of Multiple Reservoir Systems, IIASA Collaborative Proceedings Series CP-82-S3 pp. 1 – 104, International Institute for Applied Systems Analysis, Laxenburg, Austria. (1982).

7. Loucks, D. P., Salewicz K., A.,Taylor M., R., IRIS – an Interactive River System Simulation

Program, User’s Manual Version 1.1. International Institute for Applied Systems Analysis, Laxenburg, Austria, (1990).

8. Ramlee, B. J., Effect of Deep Percolation in Computing Water Use Efficiency for the Paddy Plots. MS Thesis, Serdang, Faculty of Engineering, UPM.( 1992).

9. Shim J., P., Warkentin M., Courtney J., F., Power D., J., Shards R., Carlsson Ch., Past, Present and Future of Decision Support Technology, Decision Support Systems, Nr. 33, pp. 111-126. (2002).

10. SMHB, Syed, Detailed Study of Water Resources Availability Northwest Selangor Integrated Agriculture Development Project, Final Report Vol. 1.( 1995).

11. Zagona E. A., Fulp T., J., Goranflo H., M., Shane R., RiverWare: A General River and Reservoir Modelling Environment, In: Proceedings of the First Federal Interagency Hydrologic Modelling Conference, Las Vegas, NV, pp. 5 - 113. (1998).