论文部分内容阅读
对东西行向、预留棉行为１００ｃｍ的三二式麦棉套种方式研究表明，在小麦抽穗后的麦棉共生期间，预留棉行上的平均光合有效辐射仅为一熟棉田的５０％～８０％，株高低和叶片枯黄时光照削弱较小；在麦棉间距相同的情况下，北行棉花接受的ＰＰＦＤ较多，而正午前后南行棉花易受荫蔽，南行棉花适当北移，保持麦棉间距在３０ｃｍ以上，降低小麦群体株高，防止小麦旺长，起垄种棉，都有利于棉花生长发育。
The study on the intercropping methods of 32 cottons with 100 cm cotton bedding set in east and west directions showed that the average photosynthetically active radiation on the cotton reserve was only 50% 80%, plant height and yellowing were weaker. Under the same wheat-wheat spacing, there was more PPFD in the northbound cotton, while cotton in the southbound cotton was easily shaded before and after noon, Cotton spacing above 30cm, reducing the height of the wheat population, to prevent the flourishing wheat, ridging cotton, are conducive to the growth and development of cotton.