000			00320nam a2200121Ia 4500
008			140317s9999 xx 000 0 und d
082			_a631.83
100			_aInter. Potash Instt.
245			_aPotassium in the agricultural systems of the humid tropics.
260			_aBern _bIPI _c1985
300			_a405
942			_2ddc _cBK
999			_c12526 _d12526