Agricultural Systems Papers Published in 1987

C O N T E N T S O F V O L U M E 23

Number 1

Multiple Objective Programming: An Approach to Planning and Evaluation of Agroforestry Systems: Part 2--An Illustrative Example and Analysis.

Guillermo A. Mendoza, Gene E. Campbell and Gary L. Rolfe (USA)

Modeling Animal-Unit-Equivalents for Beef Cattle David L. Scarnccchia and Charles T. Gaskins (USA)

Soil Rating for Crop Production in the Savanna Belt of South-Western Nigeria Adeniyi Gbadegesin (Nigeria)

Farmers' Views of the Prospects for Agriculture in a Metropolitan Area William Lockeretz, Julia Freedgood and Katherine Coon (USA)

Physical and Nutrient Status of Soils Under Rubber (Hevea brasiliensis) of Different Ages in South-Western Nigeria

A. O. Aweto (Nigeria)

Book Reviews

Number 2

An Analysis of Supply Response Among Cotton Growers in Malawi Duncan M. Chembezi (Malawi) and Abner W. Womack (USA)

A Potential Family Food Production System for Warm Climates Based on Potato Production from True Seed in Home Gardens and Simple Processing

S. G. Wiersema and R. H. Booth (Peru)

Parameter Estimation and Calibration of Simulation Models as a Non-linear Optimization Problem .

H. Talpaz (USA), G. D. da Roza and A. B. Hearn (Australia)

Goal Programming with Penalty Functions and Livestock Ration Formulation Tahir Rehman (Great Britain) and Carlos Romero (Spain)

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Agricultural Systems--1987

The Role of On-Farm Trials in the Evaluation of Composite Technologies: The Case of Alley Farming in Southern Nigeria

A. N. Atta-Krah and P. A. Francis (Nigeria)

Book Reviews

133

153

Number 3

Optimal Stocking Rates for Several Species--Farming Chris Koen (South Africa)

Household Gardens: Theoretical and Policy Considerations Vera Nifiez (Peru)

The Effects of Guard Rows on Variety Test Results of Maize John C. W. Keng and John W. Hall (Canada)

Measures for Assessing the Productivity of Sheep and Goats C. P. Peacock (Kenya)

Agriculture and its Environment: Are There Other Ways? . C. T. de Wit, H. Huisman and R. Rabbinge (The Netherlands)

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Number 4

A Simulation Model of the Growth of the Cassava Crop and its Use to Estimate Cassava Productivity in Northern Australia

S. Fukai and G. L. Hammer (Australia)

Traditional Cropping Systems in Northwestern Spain (Galicia) . Jaime Lloveras Vilamanya (Spain)

Simulated Effects of Changing Management Alternatives on Production Performance of Gobra Zebu Cattle

K. P. Abassa (Senegal), J. H. Conrad and G. H. Smerage (USA)

An Economical and Sociological Analysis of Mixed Division of Cameroon

Ajaga Nji and Nkwain Sama J. (Cameroon)

Cropping in Menoua

Modelling the Dynamics of Sheep Flocks in Egypt Hisham E1-Shishiny, Hussein Mansour and E. Salah E. Galal (Egypt)

Book Reviews

Announcements .

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C O N T E N T S OF V O L U M E 24

Number 1

Cattle Accumulation and the Commercialization of the Traditional Livestock Industry in Botswana .

Roy H. Behnke, Jr (Great Britain)

Smallholder Farmers and Forestry Development: A Study of Rural Land Use in Bendel, Nigeria

G. J. Osemeobo (Nigeria)

Land Use and Agricultural Practices in the Kainji Lake Area of Nigeria E. O. Adekolu-John (Nigeria)

An Ex-ante Economic Appraisal of Mono-cropping, Mixed Cropping and Inter-cropping of Annual and Perennial Crops

Nkwain Sama Joseph (Cameroon)

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Number 2

Profitability Analysis of a Farming System in Africa . Michael Boateng, C. Brice Ratchford and Melvin Blase (USA)

The Properties of Agroecosystems Gordon R. Conway (Great Britain)

Prospects for Grass--Clover Swards in Beef Production Systems: A Computer Simulation of the Practical and Economic Implications

C. J. Doyle, J. Morrison and S. Peel (Great Britain)

A Model to Facilitate Farm Machinery Use and Cost Data Collection G. C. Misener and C. D. McLeod (Canada)

Book Reviews

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Number 3

Soil Nitrogen and Fertilizer Recommendations for Irrigated Rice in the Philippines Joyotee Smith (Australia), H. U. Neue and Gloria Umali (Philippines)

Models for Systems Analysis of Potato Integrated Pest Management. D. A. Haith, G. S. Farmer and G. B. White (USA)

Computer Simulation of Monitoring Herd Productivity Under Extensive Conditions: Sampling Error of Herd Size and Offtake Rate

R. Baptist (West Germany)

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Crop Yields under the Traditional Cropping Patterns in a Middle-Belt Savanna Agro-ecological Zone of Nigeria.

B. A. Kalu and J. C. Norman (Nigeria)

Determination of Potential Yield-limiting Factors of Soybeans Using SOYMOD/OARDC

D. L. Elwell, R. B. Curry and M. E. Keener (USA)

Book Reviews

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Number 4

Irrigation Water Policy Effects on Regional Crop Allocations in Peru L. R. Zavaleta (USA)

Using the Concept of Physiological Age to Predict the Efficiency of Growth in Beef Animals

O. J. Loewer, L. W. Turner, N. Gay, R. Muntifering and C. J. Brown (USA)

Reconciling Conflicts in Sequential Cropping Patterns Through Plant Breeding: The Example of Cotton and Wheat in Pakistan's Punjab

Derek Byerlee, M. Ramzan Akhtar and Peter R. Hobbs (Pakistan)

Plantable Stem Supply System for IITA Cassava Varieties in Oyo State of Nigeria Malachy O. Akoroda, A. Ebun Oyinlola and Tesfaye Gebremeskel (Nigeria)

Letter to the Editor

Book Reviews

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C O N T E N T S OF V O L U M E 25

Number 1

A Stochastic Model to Study Breeding Schemes in a Small Pig Population G. de Roo (The Netherlands)

The Effectiveness of Silage Inoculants: A Systems Approach R. E. Pitt and R. Y. Leibensperger (USA)

A Linear Programming Model of Grassland Management . A. G. Conway and L. Killen (Ireland)

Conference Report

Book Reviews

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Shorter Notice

Announcement


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Number 2

The Small Ruminant Market System in Indonesia: A Review H. C. Knipscheer, M. Sabrani, T. D. Soedjana and A. J. De Boer (USA)

The Migrant lgbira Farmers and Food Crop Production in Bendel State, Nigeria G. J. Osemeobo (Nigeria)

A Model for Sericulture and Milk Production R. K. Mehla, R. K. Patel and V. N. Tripathi (India)

Price Formation on the Brisbane, Australia, Market D. G. Mayer, J. E. Holt and D. Schoorl (Australia)

Validation of ALSIMI (Level 2) Under Michigan Conditions Lucas D. Parsch (USA)

Book Reviews

Shorter Notice

Announcement

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Number 3

Optimizing Multiple Cropping Systems: Simulation Studies Y. J. Tsai, J. W. Mishoe and J. W. Jones (USA)

Plant Uptake and Accumulation of Soil Applied Trace Organic Compounds: Theoretical Development

E. L. McCoy (USA)

The Borana Pastoral System of Southern Ethiopia Noel J. Cossins (Ethiopia) and Martin Upton (Great Britain)

Economic Thresholds and Reponse to Uncertainty in Weed Control . Bruce A. Auld and Clem A. Tisdell (Australia)

A Model for Selective Mechanisation for the Small Farmer Adeyemi Aderoba (Nigeria)

Book Reviews

Shorter Notice

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Number 4

Editorial

An Analysis of the Growth Rates of Pasture and Animal Production D. A. Charles-Edwards, P. Tow and T. R. Evans (Australia)

Nitrogen and Phosphorus Transfers in a Crop-Livestock System in West Africa J. M. Powell (USA) and M. A. Mohamed-Saleem (Nigeria)

Economics of Simulated Beef-Forage Rotational Uncertainty .

Lucas D. Parsch and Otto J. Loewer (USA)

Grazing Under Weather

GRAZE: A Model of Selective Grazing by Beef Animals O. J. Loewer, K. L. Taul, L. W. Turner, N. Gay and R. Muntifering (USA)

Rapid Rural Appraisal for Generating Appropriate Technologies for Peasant Farmers: Some Experiences from Northern Nigeria

G. O. I. Abalu, N. M. Fisher and Y. Abdullahi (Nigeria)

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