00729nam a2200193Ia 4500008004100000020001500041082001700056100002100073245009500094260006600189300000800255650004100263650003400304653001400338653001300352942001200365999001700377952014100394170901s1970    xx            000 0 und d  a0851980155  a631.84bW41R  aWhitehead, D. C. 0aRole of Nitrogen in Grassland ProductivitybA review of information from temperate regions  aEnglandbCommonwelth Bureau of Pastures and Field Cropsc1970  a202  aAgriculture and related technologies  aTechnology (Applied sciences)  aGrassland  aNitrogen  2ddccBK  c14283d14283  00102ddc4070aRAUbRAUd2017-10-18eOxford Book and S. Co., New DelhifPOUNDg4.50l0o631.84 W41Rp25197r2017-10-18w1981-04-22yBK