000			00319nam a2200109Ia 4500
008			191031s9999 xx 000 0 und d
100			_aRadha (RK)
245		0	_aInfluence of organic an dinorganic sources of nitrogen on the productivity of lowland rice
260			_b"M.Sc., Agronomy"
260			_c1996
942			_cBK
999			_c218696 _d218696