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耕地土壤中磷素存在的情况是农业生产中需要重视的问题,因为它影响作物对土壤中磷素的利用。国内外学者对土壤中磷素存在情况进行过许多研究工作,并拟定了相应的分析方法。对土壤中存在不同形态磷酸盐的分组分析以Φ.B.契里科夫和S.C.张为代表。至于诊断土壤中现存可供给作物利用有效磷(又称可给态磷)的测定方法也有许多种。国内外傅播较广泛的有:0.2N HCl—吉尔散诺夫法0.002N H_2SO_4—特鲁奥格法(E.Truog)、0.03NNH_4F+0.025N HCl和0.1N HCl+0.03N
The presence of phosphorus in cultivated soils is a problem that needs attention in agricultural production as it affects the crop’s use of phosphorus in soils. Scholars at home and abroad have made many researches on the existence of phosphorus in soil and developed corresponding analytical methods. The grouping analysis of the presence of different forms of phosphates in the soil is represented by Φ.B. Cherikov and S. C. Zhang. There are many different methods for the determination of the available available phosphorus (also known as available phosphorus) for the diagnosis of soil available crops. Fu broadly at home and abroad are: 0.2N HCl-Krsonanov method 0.002N H_2SO_4 - Trouog method (E.Truog), 0.03NNH_4F + 0.025N HCl and 0.1N HCl +0.03 N