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磷素具有多种生理功能,是小麦主要营养元素之一。但在小麦生长发育过程的不同时期和阶段,对磷素的要求和反应并不完全相同。近年,氮肥用量增加,小麦对磷素的反应也愈加敏感。研究和揭示小麦磷素营养特性,对合理施用磷肥,提高磷肥的经济效果,获得小麦高产稳产均有重要作用。1981—83年,我们对小麦的磷素营养特性与施肥效应进行了试验,现将其结果整理于后。一、试验设计供试土壤为本院头道原红油上。肥力中等,缺磷。含有机质1.22％,全氮0.09％,碱解氮62—84.7ppm;全磷0.12％,有效磷4.5—5.2ppm。质地壤粘,物理粘粒(<0.01毫米)54.43％,粘粒(<0.001毫米)30.07％。
Phosphorus has a variety of physiological functions, is one of the main nutrients of wheat. However, at different stages and stages of wheat growth and development, the requirements and responses to phosphorus are not exactly the same. In recent years, the amount of nitrogen fertilizer increased, the response of wheat to phosphorus is also more sensitive. Studying and revealing the phosphorus nutrition characteristics of wheat plays an important role in the reasonable application of phosphate fertilizer, increasing the economic effect of phosphate fertilizer and obtaining high and stable yield of wheat. In 1981-83, we tested the phosphorus nutrition characteristics of wheat and fertilizer effects, and now the results are sorted out. First, the experimental design for the test soil for the first Road of the original red oil on the hospital. Medium fertility, lack of phosphorus. Organic matter 1.22%, total nitrogen 0.09%, 62-84.7ppm of alkaline hydrolysis of nitrogen; 0.12% of total phosphorus, available phosphorus 4.5-5.2ppm. Soil clay, physical clay (<0.01 mm) 54.43%, clay (<0.001 mm) 30.07%.