000 00313nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.811.3
_bIND
245 0 _aPotassium in soils crops and fertilizers
260 _aDelhi
_bIndian Society of Soil science
_c1976
650 _aPotassium fertilizers
942 _cBK
999 _c24936
_d24936