Record Details

Biological nitrogen fixation and residual effects of winter grain legumes in rice and wheat cropping systems of the Indo-Gangetic Plain

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/6771/
 
Title Biological nitrogen fixation and residual effects of winter grain legumes in rice and wheat cropping systems of the Indo-Gangetic Plain
 
Creator Saraf, C S
Rupela, O P
Hegde, D M
et al, .
 
Subject Others
 
Description Legumes have long been recognized by farmers and scientists alike as builders and restorers of soil fertility. Chickpea, the dominant winter legume in India and
Pakistan can potentially fix at least 80% of its nitrogen (N) needs from air (like other legumes) and can acquire up to about 140 kg N ha"1 from air. Lentil, a major winter legume in Nepal and Bangladesh can potentially acquire about 190 kg N ha"1 from air. But the quantities of N2-fixation by these legumes in farmers' fields in these countries are normally much less than half the potential fixation levels, according to experiments using 15N methods. An increase in irrigation facilities, ready and cheap availability of chemical fertilizers, relatively less stable yields of legumes, and government policies favoring cereal production have driven away the legumes from the intensive cropping systems of the Indo-Gangetic Plain. Any significant increase in area under winter legumes in the
intensive cereal-cereal cropping system will require a change in this scenario...
 
Publisher Oxford & IBH Publishing Co. Pvt. Ltd.
 
Contributor Rao, J V D K K
Johansen, C
Rego, T J
 
Date 1998
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/6771/1/BiologicalNitrogen..Plain_14-30_1998.pdf
Saraf, C S and Rupela, O P and Hegde, D M and et al, . (1998) Biological nitrogen fixation and residual effects of winter grain legumes in rice and wheat cropping systems of the Indo-Gangetic Plain. In: Residual effects of legumes in rice and wheat cropping systems of the Indo-Gangetic plain. Oxford & IBH Publishing Co. Pvt. Ltd., New Delhi, pp. 14-30. ISBN 81-204-1297-4