论文部分内容阅读
榆林北部风沙草滩区气温偏低,雨量较少,无霜期短,玉米制种授粉结早低,籽粒饱满度差,种子易受冻,芽率难保证。但土地广阔,水资源丰富, 隔离条件好,是一块很有发展潜力的待改善玉米生产基地。为了全面掌握北部风沙草滩区玉米制种的关键措施,及时解决玉米制种基地生产中出现的问题,近几年本人通过自己实践工作体验和大量的调查研究, 总结出以下几条关键技术措施。
Yulong sand beaches in the northern part of the sand temperature is low, less rainfall, frost-free period is short, early pollination of corn seed production, grain fullness, the seeds vulnerable to freezing, bud rate is difficult to guarantee. But the vast land, rich water resources, good isolation conditions, is a great potential for improvement of corn production base. In order to comprehensively grasp the key measures for seed production of maize in the sandy seashore area in the north and solve the problems in the production of maize seed production in time, I have summarized the following key technical measures in recent years through my own practical work experience and a large number of investigations and studies.