小麦—白三叶草复合群体中种群关系的初步研究

小麦和白三叶草（Ｔｒｉｆｏｌｉｕｍｒｅｐｅｎｓ）复合共生，是一种新型的农田人工群落。其功能表现为种养（养地与养殖）的有效结合，并通过小麦与三叶草的群体优势抑制农田杂草种群。因此，在理论上，这种复合群体是多功能效益，而且是相对稳定的农田生态系。在生产实...

On Interaction of Wheat with Trifolium repens in the Complex Community.

The interaction of wheat with Trifolium repens in the complex community was studied and the results showed that 1) stratification of the above-ground parts occurred and wheat roots were better developed in the complex community; 2) intercropped Trifolium repens with wheat could improve yield components of wheat in edge lines and lead to 17.9% more yield compared with that of wheat in the midle line,resulting in higher yield per unit of net planting area of wheat in intercropping community than that in sole cropping; 3) inhibition to growth of Trifolium repens was significantly related to leaf area of wheat in the edge liness; 4) the yield of intercropped wheat was higher than that in sole cropping when sowing area of wheat in intercropping was more that 85% of the total area, whearas when this ratio was less than 75%, the yield of intercropped wheat was lower than that of sole cropping; and 5) wheat yield in mix-cropping was higher than that in sole cropping. It is concluded that wheat is predominant population in wheat and Trifolium repens complex community.