Fertilizers, crop quality and economy proceedings of a Study Week on the Use of Fertilizers and their Effect on Crop Growth, with Emphasis on Quality and Economy, April 10th-16th, 1972

অনুরূপ উপাদানগুলি

• Crop production levels and fertilizer use.
  প্রকাশিত: (1981)
• Efficient use of fertilizers in agriculture.
  প্রকাশিত: (1983)
• Fertilizer strategies /
  প্রকাশিত: (1987)
• The biology of crop productivity /
  প্রকাশিত: (1980)
• Production risk and optimal fertilizer rates : an application of the random coefficent model /
  অনুযায়ী: Smith, J.
  প্রকাশিত: (1985)