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The potential of mathematical programming for the analysis of yield gaps in semi-arid tropical agriculture

OAR@ICRISAT

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Relation http://oar.icrisat.org/5115/
PR No.24
 
Title The potential of mathematical programming for the analysis of yield gaps in semi-arid tropical agriculture
 
Creator Ghodake, R D
 
Subject Chickpea
Pigeonpea
Groundnut
Sorghum
 
Description The International Rice Research Institute has pioneered a methodology to identify yield gap factors and estimate their magnitudes in rice production. The total yield gap is conceptually divided into two components: Gap I, between experiment station yield and potential yield at the farm level; Gap II, between potential and actual yield at the farm level. Gap I has direct implications for research and thus for the development of new technology. Gap II deals with the realization of the production potential at the farm level with a given technology. Gap III can be further divided into two components: (1) that caused by biological constraints, and (2) that caused by socio-economic constraints. The paper proposes and demonstrates the use of a whole-farm modelling approach based on mathematical programming, to partition Yield Gap II, attributable to socio-economic factors in rainfed agriculture. The first section deals with existence of yield gaps, expressed in various ways, in different crop production activities in the study location. It also tries to explain them in terms of input gaps. In the second section, the proposed models and concepts are discussed. The third section demonstrates the use of a mathematical programming technique in breaking yield gap into components by using actual input-output data and by considering existing resource and other constraint levels.ADDITIONAL ABSTRACT:In this paper the use of whole-farm modelling based on mathematical programming to partition Yield Gap II (gap between potential and actual yield at the farm level), attributable to socioeconomic factors, in rainfed agriculture in Akola district of Maharashtra is discussed. The existence of yield gaps, expressed in various ways in different crop production activities are considered and explained in terms of input gaps. The proposed models and concepts are discussed. The use of a mathematical programming technique in breaking yield gap into components by using actual input-output data and by considering existing resource and other constraint levels, is examined. It was concluded that the use of the technique to analyse yield gaps at the farm level, rather than to analyse yield gaps of individual crops, is more appropriate in rainfed agriculture
 
Publisher ICRISAT
 
Date 1981
 
Type Monograph
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/5115/1/S6-1014.pdf
Ghodake, R D (1981) The potential of mathematical programming for the analysis of yield gaps in semi-arid tropical agriculture. Project Report. ICRISAT, ICRISAT, Patancheru.