Soil fertility and fertilizers :
Soil fertility and fertilizers : an introduction to nutrient management /
Havlin,John L....[et al.].
- 6th ed.
- New delhi, pearson 1999
- x, 499 p. illus. 24 cm.
Includes indexs.
8178088630
Soil fertility.
Fertilizers.
631.42 / SOI
Includes indexs.
8178088630
Soil fertility.
Fertilizers.
631.42 / SOI