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针对麦棉套种的辐射竞争矛盾,结合气象学理论,初步建立了以棉行接受太阳直达辐射累积时间为主体的麦棉套种微气候学计算机模型。模拟结果表明,对棉花而言,东西行套种棉行受光较多,而南北行向则较少,小麦株高太高和预留棉行太窄,均会增加棉行的遮荫时间。理论分析认为,采用东西行种植,选择矮杆小麦品种或适时对小麦进行化学调控,起高垄种棉,用棉花育苗移栽方法缩短麦棉共生期等措施,皆有利于培育壮苗,为获得高产打下良好基础。
According to the conflicts of radiation competition between wheat and cotton intercropping, the microclimate computer model of cotton intercropping based on meteorological theory was established. The simulation results show that for cotton, the cotton intercropping of east and west lines receives more light and less north-south direction. The height of wheat and the width of reserved cotton are too high, which will increase the shade time of cotton. According to the theoretical analysis, the measures such as growing the east-west line, selecting the short-barley wheat or controlling the wheat in a timely manner and using high-ridge cotton and shortening the symbiotic period of the cotton and cotton by the transplanting method of cotton seedling are all conducive to cultivating strong seedlings Get high yield and lay a good foundation.