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Effects of Winter Legumes on the Nitrogen Economy and Productivity of Succeeding Cereals

Published online by Cambridge University Press:  03 October 2008

I. P. S. Ahlawat
Affiliation:
Division of Agronomy, Indian Agricultural Research Institute, New Delhi-110012, India
A. Singh
Affiliation:
Division of Agronomy, Indian Agricultural Research Institute, New Delhi-110012, India
C. S. Saraf
Affiliation:
Division of Agronomy, Indian Agricultural Research Institute, New Delhi-110012, India

Summary

Results are described of an experiment conducted for 2 years in North-West India where grain legumes increased the N and P status of the soil compared with cereal or fallow. Maize following legumes recorded increases in growth, yield attributes, yield and N uptake. Various winter grain legumes such as chickpea, lentil, pea and Lathyrus sativus reduced the need for fertilizer N in maize to the extent of 18–68 kg/ha compared with cereal (wheat) or fallow. Application of nitrogen to the maize promoted plant growth and increased both yield and N uptake.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1981

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References

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