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我地沿海旱粮区8、9月份常遭台风灾害,每年1～2次,并受季风影响,伏旱二年一遇,种植夏玉米风险较大。50年代起,逐步以春玉米代替夏玉米,形成了麦子(蚕豆)——套作春玉米——间作大豆(甘薯)一年三熟耕作制度。由于对间作春玉米高产配套技术研究较少,亩产一直在350kg左右徘徊。1986年开始,作者对间作春玉米产量构成主因素进行了研究,并提出了相应的高产栽培措施,促进了春玉米生产。一、研究方法 1.1986～1987年,在玉米成熟期,选择生产水平中等、品种类型相同、有代表性的田块进行产
The coastal dry grain areas in China were often hit by typhoon in August and September, 1 or 2 times a year. Affected by the monsoon, the drought in every two years is more risky for planting summer maize. From the 1950s onwards, it gradually replaced spring maize with summer maize and formed the three-year farming system of wheat (broad bean) -set spring maize-intercropped soybean (sweet potato). As a result of inter-crop spring maize high-yielding technology research less, mu yield has been hovering around 350kg. Beginning in 1986, the author studied the main factors of inter-crop spring maize yield and put forward corresponding high-yielding cultivation measures to promote the production of spring maize. First, the research methods 1 1986-1987, corn mature stage, select the medium level of production, the same type of species, a representative field for production