NPK in Indian agriculture (1971--1975) : a bibliography of nitrogen, phosphorus, potassium and related factors in crops, soils, fertilisers and manures

TANDON, H. L. S

NPK in Indian agriculture (1971--1975) : a bibliography of nitrogen, phosphorus, potassium and related factors in crops, soils, fertilisers and manures - 1978 - 797p


FERTILIZERS AND MANURES -- BIBLIOGRAPHY

FERTILIZERS AND MANURES -- BIBLIOGRAPHY

016.631 8 E80N

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