论文部分内容阅读
甜菜生育后期是糖分积累的重要时期,这一时期块根增重速度减缓,田间管理的中心任务是,保证适量的水分供应,消灭杂革,防治病虫害.防止茎叶早衰,促进糖分向块根内运转,增加块根的含糖量和产量。应抓好以下几项措施: 一,根外追肥在甜菜生育后期,以磷、钾溶液进行根外追肥,可增加植株的生理功能,促进糖分的运转和积累,使块根产量和含糖量均能得到提高。据试验,块根产量可提高8～15%,含糖率提高0.8～1.2%。进行根外追肥的时间,一般在8月下旬至9
The late stage of sugar beet accumulation is an important period of sugar accumulation, during this period, the root weight gain slowed down, and the central task of field management is to ensure adequate water supply, eliminate miscellaneous grains and prevent pests and diseases. , Increase the sugar content and yield of roots. Should do a good job in the following measures: First, the root top-dressing In the late growth of sugar beet, with phosphorus and potassium solution for root top dressing, can increase the physiological functions of plants to promote the operation and accumulation of sugar, root tuber yield and sugar content Can be improved. According to the test, the yield of tuber can be increased by 8-15% and the sugar content increased by 0.8-1.2%. Time for root top dressing, usually in late August to 9