Effect of cropping & fertilization practices on enrichment ratios for organic matter, nitrogen, & phosphorus on heavy soils

Gupta, Madan Lal

Effect of cropping & fertilization practices on enrichment ratios for organic matter, nitrogen, & phosphorus on heavy soils - 65P.+9App.+9Bib.+23Tab.+4Fig.




Nitrogen
Phosphorus
Soils
Cropping
Fertilization
Organic matter
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