【摘要】 本文研究了黄棕壤和水稻土的有机磷组分动态变化和剖面分布 ,结果表明 ,用Bow man—Cole法测定的土壤四种有机磷组分在旱地土壤剖面中随土层加深含量减少 ;土壤高活性、中活性和中稳性有机磷在作物生长发育旺盛期含量降低。更多还原

【Abstract】 This paper dealed with the contents of soil organic phosphorus in yellow brown earth and paddy soil.The result shows that the contents of soil organic phosphorus in yellow brown earth and paddy tended to decrease with soil profile depth. The labile organic phosphorus? moderately labile organic phosphorus and moderately resistant organic phosphorus were lowest at wheat stem pushing spike formation stage.更多还原