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地膜覆盖新技术应用于甜菜生产,这是甜菜栽培技术的重大突破。由于地膜具有增温、保墒、抑盐抑草、改善土壤理化性状等多种效应,因而是甜菜生产上保全苗、促壮苗、显著提高单产的有效措施。但是地膜覆盖的增温、保墒作用,也十分有利于杂草大量滋生,严重影响甜菜的产质量和该项技术的推广应用,为解决地膜覆盖条件下栽培甜菜的化学除草技术问题,1986年我们在农安县进行了除草剂及使用剂量的筛选试验。
The new technology of film mulching applied to the production of beet, which is a major breakthrough in the technology of beet cultivation. As the film has a variety of effects such as warming, preserving soil moisture, suppressing salt and controlling the weeds, and improving the physical and chemical properties of the soil, it is an effective measure to ensure the quality of the seedlings, increase the seedlings, and significantly increase the yield of sugarbeet. However, the plastic film mulching has the effect of increasing temperature and preserving soil moisture, which is also very beneficial to the breeding of weeds. It seriously affects the yield and quality of sugar beet and the popularization and application of the technology. In order to solve the chemical weeding technology for growing sugar beet under plastic film mulching conditions, in 1986 In Nong’an County, herbicides and dosage tests were conducted.