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Cropping Systems with Groundnut: Resource Use and Productivity

OAR@ICRISAT

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Relation http://oar.icrisat.org/4403/
 
Title Cropping Systems with Groundnut: Resource Use and Productivity
 
Creator Willey, R W
Natarajan, M
Reddy, M S
Rao, M R
 
Subject Groundnut
 
Description In the rainfed semi-arid tropics (SA T) the relatively short gro wing season usually limits the choice
of cropping systems with groundnut, either to solecrop or intempping systems. This paper
examines some of the mechanisms associated with environmental factors that can enable intercropping
systems to outyield sole-crop systems. Temporal intercropping systems, when the
component crops make their peak demands on resoums at different times, an illustrated with a
groundnut/pigeonpca system. In this system higher yields from intercropping am associatad with
a fuller use of environmental resoums over time. Spatial intemropping systems an illustr~ted
with a 3-year rainy-season study on millet/groundnut. A higher yield from intercropping was
most notably associated with impro vcd light-energy con version. Drought-stress studies on
sorghum/groundnut and millet/groundnut showed no stress effkcts on the relative dry-matter
yield advantages of intercropping, However, relative reproductive yield advantages of intercropping
increased markedly with stress because the harvest index of sorghum and groundnut
decreased much less in intemropping than in sole cropping. The importance of nitrogen fixrtion
in intercropped groundnut and the likely benefits to nonlegume companions or following crops
rue also discussed.
 
Date 1986
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/4403/1/CP_329.pdf
Willey, R W and Natarajan, M and Reddy, M S and Rao, M R (1986) Cropping Systems with Groundnut: Resource Use and Productivity. In: Agrometeorology of groundnut. Proceedings of an international symposium, 21-26 August 1985, ICRISAT, Niger.