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1Importance of secondary and micronutrients in multiple cropping systems: Indian experience Importance of secondary and micronutrients in multiple cropping systems: Indian experienceby Katyal, J.C. (Punjab Agricultural Univ., Ludhiana (India)), Expert Consultation on Fertilizer Use under Multiple Cropping Systems eng 3 Feb 1982 New Delhi (India), Pathak, A.N.
Published 1983Texto bibliotecaFAO IT