Nambiar, K.K.M .
Soil fertility and crop productivity under long term fertilizer use in India / Textual Documents K.K.M Nambiar. - New Delhi : Indian Council for Agricultural Research , 2002. - 144 ; .
50.OO
631.42 / NAM/SO
Soil fertility and crop productivity under long term fertilizer use in India / Textual Documents K.K.M Nambiar. - New Delhi : Indian Council for Agricultural Research , 2002. - 144 ; .
50.OO
631.42 / NAM/SO