WELCOME TO K.V.K.BHOJPUR, ARA

O.F.T. 2007-08

I.        1. Title of OFT – Performance of fine rice RAU-710 under irrigated medium land condition

 2. Problem diagnosed –Existing cultivars are sensitive to number of diseases . The area under

fine rice is 7000 ha. In the district . The production had reduced ranging from 25-35% i.e. from avg.

39.0q/ha to 28-30 q/ha leasing to a huge reduction of 70000 qt with an estimated loss of Rs. 6.3 corers . 3. Details – During 2005-06 RAU Pusa Samastipur had released one promising fine rice i.e. RAU

– 710 now called Rajendra Sweta and was found superior in quality with more disease and pest to leant comrade to existing Rupali, Sonam, BPT – 5204 and other fine rice cultivar.  4. Source of Tech. – RAU Pusa Samastipur

5. Rice Wheat – Varietals evaluation6. Performance of the technology

TreatmentT1 – Farmers Practice i.e. cultivation of Rupali 40.1T2 – Sonam

42.3T3 – RAU -710

45.27. Final – Since it is tow-year data, therefore a final recommendation may

be drawn on the basis of farmer's reaction and yield performance. This variety may be recommended for replacement of existing or fine rice cultivars. 

8. Constraints identified and feed back – The broken grain percentage is high which is a matter of concern (It had been communicated to University)

9. Pro reaction – Farmers participation was active. They found the grain quality better over existing cultivars. No. of Replication – 40 (12+28 )

 

Treatments

Tillers/m2 Effective tillers/m2

Panicle length (cm)

Panicle wt (g)

Filled grain/Pani

cle

Test wt (g) Grain yield Q/ha.

T1 348 314 24.6 2.59 71 17.94 40.1

T2 332 296 25.1 2.90 76 18.78 42.3

T3 348 288 27.7 3.02 82 19.17 45.2

 

  No. of damaged leaf / hill with BLB

BPH affected dead plants /

hill

Gross Return Rs. / ha

Net Return Rs. / ha

B:C Ratio

T1 67 29 40100 18470 0.86:1

T2 60 23 42300 20670 0.96:1

T3 22 07 45200 24750 1.21:1

 

II 1. On-farm trials – Impact analysis of micro-nutrient under INMS in Paddy c.v. RM – 1 2. Problem – There are more than 45% area is deficient in Zink and 35% area for Boron . The browning of lower leaves (Khaira Disease) is most commonly prevalent . Similarly chaffy ness of grain i.e. empty panicles are also dominate in the identified area of Again (Cropped area – 10,597 ha) . These are well irrigated with canal and potential paddy producing area . The production potential was 52 q / ha which reduced to 43-44 q / ha for long duration H.Y.V. of paddy  2.       Department of soil science RAU Pusa has reported the impact of micro nutrient on paddy and observed that Zn & B both are detrimental for paddy growth and yield . The paddy cultivars RM-1 had a potentiality of 60-70 q / ha which failed to perform better however it is being cultivated in more than 3000 ha. of land. 4. RAU Pusa Samastipur 5. Rice Wheat Zn & B performance

6. TreatmentT1 – farmer practice (120:40:10) and no micronutrient 50.8

 T2 – Application of (100:50:25) and no micronutrient 53.5

 T3 – (100:50:25) + Zn as foliar @ 2 gram / lt. water 58.3

 T4 – (100:50:25)+ Boron as Borax foliar @ 2.5 gram / lt. water 59.4

 T5 – (100:50:25)+ Zn + Borax as foliar 62.7

 7. Final – Since last two years a significant difference in yield and its attributes was observed both application of Zinc and Boron it may be use for FLD in Agiwayan and similar rice areas suffering from micro nutrient deficiency. The recommended dose will be Zink @ 800 gram / ha. And Borax @ (10 % Boron) @ 1 Kg. /ha. as foliar application. 8. Constraints – A generalized soil testing for micronutrient is need and awareness-training camp should be organized for the use of micronutrient in paddy field to boost the yield of paddy. 9. Process – Farmers participation was active production potentiality is higher with application of micro nutrient along with balanced NPK (16.2- 22.8%)

No. of Replication – 32(6+26) Status of Soil – DTPA – Zn – was –0.61ppm (Avg.) - ** (Critical limit – 0.78ppm)

Boron – was – 0.37ppm (Avg.) ** (Critical limit – 0.53ppm)

Treatments Tillers/m2 Effective tillers/m2

Panicle length (cm)

Panicle wt (g)

Filled grain/Panicle

Test wt (g)

Grain yield Q/ha.

T1 265 233 28.0 2.79 144 15.08 50.8

T2 262 246 29.5 3.02 147 15.12 53.5

T3 277 253 30.0 3.20 150 15.08 58.3

T4 281 263 30.0 3.21 149 15.11 59.4

T5 286 272 30.5 3.26 133 15.22 62.7

 ** Ref – 25 years of research on micro & secondary nutrients in Soils & Crops of Bihar. Department of Soil Science (1996) RAU Pusa Bulletin. 

Treatment Gross Return (Q/ha) Net Return (Rs. / ha) B:C Ratio

T1 35020 14570 0.71:1

T2 36975 16350 0.79:1

T3 40095 19020 0.90:1

T4 41510 20635 0.99:1

T5 43255 22125 0.05:1

III 1. On Farm Trails – Evaluation of new chemical for effective BPH control in Paddy. 2. Problem Diagnose – Brown plant hopper is a serious pest in paddy fields in entire rice growing field (1,20,500 ha.) It attacks the crop during panicle initiation and resultant in hopper burning and at times the losses goes up to 50-60 % of covered area The existing chemicals are not controlling the insect fully and farmers are incurring heavy losses of yield and poor grain quality.  3. Details – Deptt. Of Entomology RAU Pusa had recommended Imidachloropide for the control of BPH effectively in paddy field. It is expected that this molecule will also give better result in most sensitive rice cultivars i.e. MTU-7029 which occupies around 80 % of total area under rice cultivation in this district. 4. Source of Tech – RAU Pusa Samastipur 5. Rice wheat fallow IPM

6. TreatmentsT1 – Farmers practice (application of folidal dust @ 20 kg./ha) 46.3

 T2 – 2 Spray of monocile @ 1 Lt./ha (pre & post flowering) 50.7

 T3 – 2 Spray of Endosulfan @ 1.75 Lt./ha (pre & post flowering) 48.9

 T4 – 2 Spray of Imidachloropide @ 125 ml / ha (pre & post flowering) 56.8

 T5 – Application of Furadan (3.6) @ 20 kg/ ha. (Pre flowering) 54.5

 7. Final – During consecutive two years the result of Imidachloropide in controlling BPH was found best. There for this molecule / medicine is fit for recommendation in paddy.  8. There was also killing of friendly insects which is not good under IPM (It has been communicated to University) 9. Farmers participation was active least incidence of BPH Higher productivity was achieved with judicious chemical application

 

Treatment * No. of BPH nymph

** No. of Dead plants / hill

Filled grain / Panicle

Test wt. (g) Grain yield (Q/ha.)

T1 27 4.5 121 15.08 46.3

T2 12 3.1 124 15.02 50.7

T3 21 3.7 123 15.03 48.9

T4 04 0.9 127 14.98 56.8

T5 06 1.2 124 15.01 54.5

 Cost of Paddy – Rs. 650/- per qt. * 2 day after spray / application of Chemicals (Pre flowering) ** Grain filling stage

 

Treatment Gross Return (Q/ha) Net Return (Rs. / ha) B:C Ratio

T1 32095 11995 0.60:1

T2 34955 14855 0.73:1

T3 33785 13535 0.66:1

T4 38920 18670 0.92:1

T5 37425 16525 0.79:1

 

. IV 1. On Farm Trails – Evaluation of Biological Fungicide for wilt control in lentil 2. Problem diagnoses – Fusarium wilt is very serious and detrimental disease in entire Lentil growing area (20,000 ha) of Bhojpur. It attacks the crop right from germination of flowering i.e. whole life span and result in reduction of plant population rouging from 25 to 65% It had created a panic in lentil growing area year to year farmers are losing million of rupees value crop 3. Details of Technologies – Department of Plant pathology RAU had identified the solution and also the CIPMC has recommended the use of Trichoderma Virdea fungi as fungicide for wilt control in pulses including lentil. Since wilt is result of composite attack of fungus spps. It is supported that in Bhojpur condition too it might be controlled with application of Trichoderma either seed treatment or soil application. 4. Source of Tech. – RAU Pusa Samastipur 5. Rice Lentil – Fallow:- IPM

6. TreatmentT1 – Farmers practice two times application of Indofil M 45 @ 2 kg/ha 7.4

 T2 – Seed treatment with Carbandazim @ 2 gram / kg Seed 8.4

 T3 – Seed treatment with 1 gram Carbandazim +4 gram Trichoderma / kg seed 9.6

 T4 – T2+ Soil treatment with Trichoderma @ 4 kg/ha. 10.2

 T5 – T3 + Soil treatment with Trichoderma @ 4 kg/ha. 13.4

 Cv PL – 639

 7. Final – This OFT was conducted for consecutive two years and in both the years seed treatment with Trichoderma along with soil treatment was found significantly superior for wilt control in lentil. It may be taken for FLD programme for further evaluation and impact analysis.  8. The treatment either soil or soil+ seed treatment are not full proof for control of wilt . There is need of further research on this aspect. 9. Reaction – Farmers participation was active

Incidence of wilt was reduced and plant population was maintained resulting in higher productivity. * Status of Soil Sulpher of the operational area i.e. 0.15% Ca Cl2 – S – 2.8-8.7ppm

 No. of treatment – 20 (4+16) (Critical S limit – 10.00ppm) Mustard C.v Pusa Jaikishan – (Bio-906)

 

Treatment Dry matter / plant (g)

Length of Siliqua (Cm)

Seeds / Siliqua 1000 Seed wt.(g)

Yield Q / ha.

T1 13.90 3.90 9.76 3.93 14.2

T2 14.92 4.53 11.28 4.08 16.3

T3 16.28 4.87 11.61 4.59 17.5

T4 16.50 4.98 11.98 4.67 17.9

T5 15.76 4.76 10.59 4.02 15.4

 

 

Treatment Gross Return (Q/ha) Net Return (Rs. / ha) B:C Ratio

T1 31240 21601 2.24:1

T2 35860 25821 2.57:

T3 38500 28061 2.68:1

T4 39380 28541 2.63:1

T5 33880 24141 2.48:1

 

* Mustard Rate @ 2200/- per quintal

V 1. On farm trials – Evaluation of S-fustigation on Mustard yield  2. Problem diagnoses – The oil content in mustard was 10-15% low compared to varietals characters .The yield was also low with lesser vegetative growth. Mustard is most leading oilseed crop and it is grown in an area of about 10,140 ha with productivity 8.4 q / ha which is very low . This is diverting the oilseed were to other crops. According to soil survey of south Bihar Plains conducted by RAU Pusa almost 35-45% area were deficient in “S” nutrition. This situation has further worsen after unavailability of SSP fertilizer in Bhojpur since last 5 years . Reduction in yield – 25-65% Economics of loss – Avg. 3.00qt / ha. i.e. 60000 qts i.e. Re. 150 millions 3. Details of technologies – Department of Soil Science RAU Pusa have recommended the application of S in soil for Sulphur supplement to meet the plant requirement. It was observed by them that “S” fustigation post the productivity of oilseed crops. This lead to the assumption that consecutive use of DAP (which resulted in S deficiency since it is not containing S) and the existing S deficiency are the root cause of low productivity it can be rectified with S application along with other fertilizers .  4. Source – RAU Pusa Samastipur 5. Rice – Mustard – fallow: INMS

 6. Treatment

T1 – 60:40:40(NPK) 14.2 

T2 – T1+10 kg / ha S as basal 16.3 

T3 – T1 + 20 kg / ha S as basal 17.5 

T4 – T1 + 30 kg / ha S as basal 17.9 

T5 – T1 + 3 kg /lt. water S as foliar (2 spray 50x70days) 15.4 Cv – Pusa Jai Kishan 7. Final Since last two years it was observed that “S” fertilization has increased the yield significantly. The optimum dose should be 20 kg / ha for mustard field under Bhojpur condition. 8. Constraints – A generalize soil testing for secondary nutrient is required for location specific recommendation of S fertilization. 9. Process of farmers Farmer's participation was active Sulpher fertilization has increased productivity (16-40%) Growth of plant was healthy and plant were robust enough           Area Under Crop – 20000 ha.  No. of Replication – 30

 

Treatment Plant Population / m2

Comparative plant mortality

/ m2

Grain / Plant (g)

Test wt (g) Grain yield (q/ha)

  Initial

30 DAS

       

T1 89 49 100.00 1.51 18.9 7.4

T2 90 62 56.00 1.46 18.7 8.4

T3 88 69 38.00 1.48 18.7 9.6

T4 92 73 38.00 1.57 17.8 10.2

T5 96 84 24.00 1.67 17.7 13.4

 

 

Treatment Gross Return (Q/ha) Net Return (Rs. / ha) B:C Ratio

T1 18500 9285 1.01:1

T2 21000 12747 1.54:1

T3 24000 15704 1.89:1

T4 25500 16445 1.82:1

T5 33500 24412 2.68:1

* Cost of Lentil – Rs. 2500/- quintal assumed

VI 1 On farm trials – Study on efficiency of weedicides for Phalaris minor control. 2. Problem diagnose – Under paddy wheat cropping system in 90% area long duration paddy is grown it delays the wheat cultivation and there the avg. productivity of wheat is 26.05 q/ha. This situation is further aggrieved due to high incidence of Phalaris minor which hitting all wheat producing areas. It is decade old problem and existing molecule. Isoproturan is loosing its efficacy in controlling this specific weed. This weed has resulted in reduction of wheat yield at time up to 40%, which is unbearable by farmers. It is also affecting the grain quality. 3.Details of Technologies – Department of Agronomy RAU, Pusa had recommended Sulfosulphuron for the effective control of Phalaris spp in area where Isoproturan is not working more effectively. Assuming that it this new chemical will control Phalaris problem and satiability in wheat yield will be achieved. 4.Source – RAU Pusa, Samastipur 5. Rice – Wheat – Fallow: Weed control

6. TreatmentT1 – No. Weeding 29.8T2 – Hand weeding 42.5

  T3 – Isoproturan @ 1 kg a.i./ ha 38.1  T4 – Stomp @ 3.3 lts. /ha as pre-emergence 36.7  T5 – Sulfosulphuron @ 75 g. a.i. / ha. As post emergence 40.1 

Cv – HD – 2643 7. Final Recommendation – The OFT was conducted for two years. In both the years the efficacy of Sulfosulphuron was found to be best followed by Isoproturan. However, hand weeding is most effective means of weed control. But when there is pressure of work force Sulfosulphuron is the best recommendation for Phalaris minor control in wheat crop. 8. This herbicide is not controlling the dicots weed effectively and also the weed seeds remain in the soil are unaffected with it more stronger molecule / chemical should be identified for control of all type of weeds in wheat crop to boost the yield 9. Farmers participation was active 

Negligible Phalaris minor were observed in wheat field  

Yield was increased and chemical post emergency weedicides are effective .   No. of Treatment – 24 (7+17)

 

Treatment * Weed population (no. / m2)

Dry wt .of weeds g / m2

Control of P. minor at 100 DAS

(%)s

Yield Q / ha.

T1 43 91 0.00 29.80

T2 00 00 100.00 42.50

T3 12 26 81.25 38.10

T4 9 16 85.94 36.70

T5 5 6 92.19 40.10

 

* 100 days after sowing

* Initial weed population in before chemical application i.e. 24 DAS – 64 / m2

 

Treatment Gross Return (Q/ha) Net Return (Rs. / ha) B:C Ratio

T1 32310 14785 0.84:1

T2 45875 27150 1.45:1

T3 41195 23270 1.29:1

T4 39665 21480 1.18:1

T5 43295 25270 1.40:1

* Cost of Wheat – Rs. 950/- per qt. ** Cost of Stover also added to gross Return

THANKU