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[目的]探讨P、Zn组合对小麦生长的影响机理。[方法]采用盆栽试验,研究砂姜黑土中P、Zn配施对小麦生长期产量以及籽粒氮素含量的影响。[结果]结果表明,小麦苗期和抽穗期P、Zn呈协同关系,成熟期明显出现P、Zn拮抗。适当的P、Zn配比有利于小麦籽粒产量的提高和经济效益的增加。P0.3Zn0.2处理的产量最高,与其他处理间在0.05水平有差异,P0.3Zn0.4、P0.9Zn0.2、P0.9Zn0.4间的产量在0.05水平无差异,Zn0处理的产量最低。[结论]低P背景下,施Zn肥能促进小麦根系的生长;高P背景下,施适量Zn肥能促进小麦根系生长,但高Zn时出现P、Zn拮抗。
[Objective] The research aimed to discuss the mechanism of the combination of P and Zn on the growth of wheat. [Method] Pot experiment was conducted to study the effects of P and Zn fertilizers on grain yield and grain nitrogen content of wheat in shajiang black soil. [Result] The results showed that P and Zn in wheat seedling stage and heading stage showed a synergistic relationship, and P and Zn antagonism appeared obviously in mature stage. Appropriate P, Zn ratio is conducive to the improvement of wheat grain yield and economic benefits. P0.3Zn0.2 the highest yield, with other treatments at the 0.05 level difference, P0.3Zn0.4, P0.9Zn0.2, P0.9Zn0.4 no difference between the 0.05 level of production, Zn0 production lowest. [Conclusion] The application of Zn fertilizer could promote the growth of wheat roots under low P stress. Under the high P stress, the application of Zn fertilizer could promote the growth of wheat roots, but P and Zn antagonism occurred in high Zn stress.