an introduction to nutrient management Havlin, John L. text Delhi PHI Learning 2014 monographic vii,516p. : 32cm(pbk) ill. Basic soil-plant relationships -- Soil acidity and alkalinity -- Nitrogen -- Phosphorus -- Potassium -- Sulfur, calcium, and magnesium -- Micronutrients -- Soil fertility evaluation -- Basics of nutrient management -- Nutrient interactions and economics -- Agricultural productivity and environmental quality. by John L. Havlin...[et al] Includes index Fertilizers Soil fertility Crops Nutrition 631.813 9788120348684 ENG-109063 DBAD/PUB 20140110144224.0