01013nam a22002297a 450000500170000001000150001702000260003203500130005803700130007108200120008424501080009624600400020426000300024427000630027430000330033750000190037050503140038965000170070365000200072065000230074070000200076320140110144224.0  aENG-109063  a9788120348684c595.00  aEN-92596  bDBAD/PUB  a631.813  aSoil fertility and fertilizers :cby John L. Havlin...[et al]ban introduction to nutrient management /  aIntroduction to nutrient management  aDelhibPHI Learningc2014  aRimjhim House, 111, Patparganj Indl. EstatebDelhie110092  avii,516p. :c32cm(pbk)bill.  aIncludes index  aBasic 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.  aFertilizers.  aSoil fertility.  aCrops xNutrition.  aHavlin, John L.