Soil and fertilizer nitrogen : review study with particular reference to plant nutrition and environmental protection /

समान संसाधन

• Nitrogen in agricultural soils /
  प्रकाशित: (1982)
• Application of nitrogen-fixing systems in soil improvement and management
  द्वारा: Hamdi, Y.A
  प्रकाशित: (1982)
• The role of nitrogen in grassland productivity : a review of information from temperate regions /
  द्वारा: Whitehead, D. C.
  प्रकाशित: (1970)
• Nitrogen and soil organic matter proceedings of a conference organized by the soil scientists of the National Agriculture Advisory Service, October 22nd-23rd 1964
  प्रकाशित: (1969)
• Nitrogen and rice.
  प्रकाशित: (1979)