关键词: 麦套春棉, 土壤温度, 动态变化

Abstract: Strictly using meteorological observation method, dynamic changes of soil temperature in wheat sping cotton relay cropping system during theirs common growth period were studied. Experimental results showed that soil temperautre in relay cropping cotton lines was lower than that in sole cropping cotton lines during their common growth period in wheat spring cotton, which made spring cotton seedling weak and developing slowly. The distance between rows of wheat cotton should be increased relatively. Soil temperature was highest. When chooseing relatively short wheat variety due to the reduction of the shade from wheat to cotton, and thus the soil temperature in wheat spring cotton relay cropping system is raised.

Key words: Wheat spring cotton relay cropping system, Wheat spring cotton relay cropping system, Soil temperature, Dynamic change