论文部分内容阅读
330具有植株高、花粉量足、配合力强、适应性广的特点。但对温度、水肥条件反映非常敏感。利用一般方法栽培在低温、多雨年份亩产不足百斤,发芽率不到80%。如何提高330的产量和质量已成为繁育工作迫切需要解决的问题。为此,我们利用地膜覆盖的增温保水保肥的作用,对330进行了地膜覆盖栽培试验研究。一、地膜覆盖栽培330的增产效果1982年,我们搞了三分地地膜覆盖栽培330玉米自交系试验,实产203.4斤,折亩产678斤,一般栽培平均亩产276斤,其中最高亩
330 has the characteristics of plant height, pollen amount sufficient, strong cooperation, wide adaptability. However, the temperature, water and fertilizer conditions are very sensitive. The use of the general method of cultivation in low temperature, rainy years less than per kilogram per mu, the germination rate of less than 80%. How to improve the yield and quality of 330 has become an urgent problem to be solved. To this end, we use the plastic film covering the role of warming water and fertilizer, 330 were mulched cultivation experiments. First, the plastic film mulching cultivation of 330 yield effect In 1982, we engaged in three-thirds of plastic film mulching cultivation of 330 maize inbred line test, yield 203.4 pounds, fold yield 678 pounds, the average cultivation of 276 pounds per mu, of which the highest acres