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Effects of farmyard manure and phosphorus and potassium fertilizers on soil properties in rice-wheat rotation

Published online by Cambridge University Press:  27 March 2009

G. N. Formoli  and
R. Prasad
G. N. Formoli
Affiliation:
Division of Agronomy, Indian Agricultural Research Institute, New Delhir-110012, India
R. Prasad
Affiliation:
Division of Agronomy, Indian Agricultural Research Institute, New Delhir-110012, India
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Summary

The effects of farmyard manure (FYM) and P and K fertilizers on soil properties were studied at the end of a 3-year (1972–5) field experiment at New Delhi, India. Each year a crop of rice and wheat was grown. FYM was applied at 0 or 15 t/ha, phosphorus at 0, 30 and 60 kg P2O5/ha and potassium at 0 or 60 kg K2O/ha. Treatments included application of manure and fertilizer to rice or wheat alone or to both the crops. FYM application increased organic C, total N and available K and P in the soil, the effects being greater when both rice and wheat received FYM. Application of FYM slightly decreased the soil pH. Phosphorus and potassium fertilizer increased available P and K in the soil, respectively.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 92 , Issue 2 , April 1979 , pp. 359 - 362
Copyright
Copyright © Cambridge University Press 1979

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References

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