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为了探索黄土区生土上作物对磷肥的利用能力,以便为黄土区合理施用磷肥提供科学依据,我们采用P~(32)示踪法进行了盆栽试验,现将试验结果整理如下:
In order to explore the availability of fertilizers on potash fertilizers in the Loess Plateau so as to provide a scientific basis for rational application of P fertilizers in the Loess Plateau, we conducted a pot experiment using the P ~ (32) tracer method. The test results are summarized as follows: