Proceedings
International Congress of Soil Science (12th)
Proceedings Managing soil resources - New Delhi Indian Society of Soil Science 1981 - 266 p. - Transactions of the 12th International Congress of .
Vol. 2 : Non-symbiotic nitrogen fixation and organic matter in the tropics
Soil Science
Nitrogen Fixation
Organic Matter
631.4(063) / I61P
Proceedings Managing soil resources - New Delhi Indian Society of Soil Science 1981 - 266 p. - Transactions of the 12th International Congress of .
Vol. 2 : Non-symbiotic nitrogen fixation and organic matter in the tropics
Soil Science
Nitrogen Fixation
Organic Matter
631.4(063) / I61P