Methods for discrimination of a collection of a collection or a conventional organic clay of cultivated land as organic a gleba of cultivated land of the conventional mode

摘要

"Methods of discrimination of a collection of a collection or a conventional organic clay of cultivated land as organic a gleba of cultivated land of the conventional mode".The present invention provides a method for discrimination of a stand of cultivated land as organic a gleba of cultivated land of the conventional mode.Comprising: (a) to measure an amount of nitrogen isotope in a sample of soil from a stand of cultivated land; (b) calculate an index of nitrogen isotope according to formula (I) usanThe value of the nitrogen isotope due; and (c) to determine if the stand of cultivated land belongs to a stand of cultivated land as organic or a stand of cultivated land as convincedThe United States Agency for international.According to the present invention.It is possible to objectively discriminate a gleba of cultivated land as organic a gleba of cultivated land of the conventional mode or discriminate against a collection of a collection Convencion organicAl.