【摘要】 为给土壤无机磷分级以及相关研究提供依据 ,用张守敬和 Jackson提出的无机磷分级方法 ( )与顾益初和蒋柏藩新近改进的石灰性土壤无机磷分级方法 ( ) ,对湖南省主要旱地土壤无机磷分级进行了比较研究 .结果表明 ,方法 只适用于酸性旱地土壤 ,方法 则不仅适用于酸性旱地土壤 ,而且也适用于中性、石灰性旱地土壤 .更多还原

【Abstract】 A study of the comparison between the method of inorganic phosphate fractionation in main upland field of Hunan province was carried out, and two other methods,the inorganic phosphate fractionation method proposed by Zhang Shoujing and Jackson and the improved inorganic phosphate fractionation method for calcareous soil proposed by Gu Yichu and Jiang Baifan were studied.The results show that the method proposed by Zhang and Jackson was adaptable only for the acid upland field,while the method proposed by Gu Yichu and Jiang Baifan was not only adaptable for neutral and calcareous upland field but also for acid upland field.更多还原