Theory and practices in the use of fertilizers

Eitemau Tebyg

• Using commercial fertilizers : commercial fertilizers and crop production
  gan: McVikar, Malcolm H
  Cyhoeddwyd: (1961)
• Commercial fertilizers their source and use
  gan: Collings, Gilbert H
  Cyhoeddwyd: (1955)
• Fertilizer use for intensive maize production
  gan: Jain, GL
  Cyhoeddwyd: (1987)
• Soil and fertilizers
  gan: Bear, Firman c
  Cyhoeddwyd: (1924)
• Soil fertility and crop productivity under long term fertilizers use in india
  gan: Nambiar, K K M
  Cyhoeddwyd: (1994)