00528nam a2200193Ia 4500 170901s2006 xx 000 0 und d 1933699000 631.84 S48N Singh, Rana. P Nitrogen Nutrition in Plant Productivity USA Studium Press 2006 388 Agriculture and related technologies Technology (Applied sciences) Nitrogen Jaiwal, Pawan. K Shankar, Niharika ddc BK 14282 14282 0 0 ddc 0 0 RAU RAU 2017-10-18 RBPPL, New Delhi 3450.00 0 631.84 S48N 59637 2017-10-18 2009-03-31 BK