000			00438nam a2200145Ia 4500
008			140712s9999 xx 000 0 und d
041			_aENG
080			_a631.41:546.32+546.46 _bSOI
245			_aSoil potassium and magnesium
260			_c1967 _aLondon _bHer Majestry Stationery Office
300			_aviii, 195
500			_aProceedings of a conference�. Advisory Service
650			_aPotassiumMagnesium Soil Sciences
942			_2UDC _cBK
999			_c6394 _d6394