Soil fertility and fertilizers :
Havlin, John L.
Soil fertility and fertilizers : An introduction to nutrient management / John L. Havlin [et..al] - 7th ed. - New delhi : Prentice-hall of india , c2005. - x, 515 p.: ill. ; 23 cm.
Include bibliographical references and index.
812033017X
Fertilizers.
Soil fertility.
Crops--Nutrition.
Soil science.
631.42 / SOI
Soil fertility and fertilizers : An introduction to nutrient management / John L. Havlin [et..al] - 7th ed. - New delhi : Prentice-hall of india , c2005. - x, 515 p.: ill. ; 23 cm.
Include bibliographical references and index.
812033017X
Fertilizers.
Soil fertility.
Crops--Nutrition.
Soil science.
631.42 / SOI