麦套春棉小麦株高对生态环境的影响

通过对不同株高小麦套种下棉行生态环境的研究表明：套种棉行的土壤温度和光照度，与小麦遮荫程度和遮荫时间有明显关系。小麦对套种棉行的遮荫程度，随着小麦株高的增加而加重；小麦对套种棉行的遮荫时间，随着小麦成熟期的推迟而延长。而套种棉苗的生长量，与小麦株高和成熟期有密切关系，小麦植株越高，成熟期越晚，棉苗生长越慢。因此，麦套春棉的小麦应选用高产、植株较矮的中早熟品种，使之既有利于小麦产量的提高，又有利于棉花的生长发育。

Effect of Different Plant Height of Wheat on the Ecological Conditions in the Field With Interplanting Spring Cotton

The results of studies on ecological condition in interplanting cotton row under differentplant height of wheat showed that there were clear relationships between the soil tempera-ture, the light intensity in interplanting cotton row and the degree,peoried of time of wheatshade. The shade degree was increased with the increasing of plant height of wheat;theshade time of wheat was prolonged with the delaying of wheat maturity date.There were close relationships among the growth of interplanted cotton and the plantheight and maturity date of wheat.The higher was the plants of wheat,the later was themafurity date and so the slower the cotton seedling grew. Therefore,mid early variety with short stalk,high yielding must be chosen to befavourable to both of the cotton and wheat.