by H. L. S. Tandon
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Management of nutrient interactions in a...
Phosphorus research and agricultural pro...
Fertilizers in Indian agriculture
NPK in Indian agriculture, 1971-1975
Sulphur research and agricultural produc...
Modeling the growth and development of s...
An agricultural testament
Organic materials and soil productivity ...
Global atlas of excreta, wastewater slud...
Chicken tractor
Revolution in a bottle
Compost