论文部分内容阅读
我省北部沿黄河两岸,水稻种植面积扩大很快。加强田间管理,消除杂草是提高产量的重要措施之一。新乡地区所在小面积试验稻田化学除草成功的基础上,经过几年的多点示范和推广,1978年全区稻田化学除草面积近10万亩,收到了灭草省工、增产的良好效果。现简介如下:一、除草醚的性壮及其功能除草醚为触杀型除草剂。工业品是棕色粉剂,容易被土壤牢固吸附,在土表可维持药效20天左右,毒性低使用较安全。杂草幼芽出土经过药剂处理层,接触药剂后见光而死,在暗处不起作用,所以不伤害水稻根系;在温度高光照强的条件下杀草效果高,气温20℃以下效果较差,要适当加大用药量。目前供应的主要是25%的可湿性粉剂,也有40%或50%的乳剂。
The northern part of our province runs along both banks of the Yellow River, and the area under rice cultivation has expanded rapidly. Strengthening field management, eliminating weeds is one of the important measures to increase production. On the basis of the success of weeding on a small area of experimental paddy field where Xinxiang was located, after several years of demonstration and promotion, in 1978, nearly 10 million mu of chemical weedy area was planted in paddy fields in the entire region. Are briefings are as follows: First, the strong weed ether and its function Weeding ether as contact herbicide. Industrial products are brown powder, easy to be firmly adsorbed by the soil, in the soil can maintain the efficacy of about 20 days, the use of less toxic and safer. Weeds sprout unearthed through the pharmaceutical treatment layer, see the light exposure after exposure to pesticides, in the dark place does not work, it does not harm rice roots; under high temperature and high light intensity grass kill effect, the temperature below 20 ℃ than the effect Poor, it is necessary to increase the dosage. The current supply is mainly 25% of WP, there are 40% or 50% of the emulsion.