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经几年试验示范和大面积推广,对于甜菜地膜栽培的增产效果,得到了比较一致的肯定。但是,对含糖率的问题还有争议。一些人往往习惯于传统的判断办法,认为覆膜甜菜块根大,含糖率自然就低。对此,有两点值得讨论:1.甜菜地膜覆盖栽培块根产量的增加由两部分因素构成。一部分是因保苗率和成株率高,依靠群体优势增产,另一部分是单株块根增重,靠个体优势提高块根产量。如,巴盟农业技
After several years of experimental demonstration and large-scale popularization, the yield increase effect of sugar beet mulch cultivation has been relatively unanimously affirmed. However, the issue of sugar content is still debatable. Some people are often accustomed to the traditional method of judgment, that the coated beet root, sugar content is naturally low. In this regard, there are two points worth discussing: 1. Sugar beet mulching cultivation root yield increase consists of two parts. Part of the increase is due to seedling raising rate and adult plant rate, increasing production by group advantage, and the other part is weight gain per plant root tuber and root yield by individual advantage. For example, Bameng agricultural technology