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移栽稻田化除适用除草剂移栽稻田一般在栽后10天左右出现第一出草高峰,主要以禾本科的稗草、千金子和莎草科的异型莎草等一年生杂草为主,发生早、数量大、危害重;栽后20天左右出现第二出草高峰,主要是莎草科杂草和阔叶类杂草。移栽稻与杂草生育期差距较大,在具有生理生化选择性的同时还具有位差选择性。利用这些差异,可以达到较好的除草保苗效果。酰胺类与磺酰脲类除草剂的复配剂的开发应用,使移栽稻田的化学除草成为一次性除草的技术典范,主要除草剂品种有乙·苄、乙·吡、丁·苄、丁·吡、异丙·苄、丙·苄、苯噻·苄、苯噻·吡等。目前国内这类除草剂产品有数十个,除了在配比和含量上略有差异外,均大同小异。乙·苄·甲及其类似产品由于价格低、防效高曾盛行,但是由于该剂对水稻有暗伤,甲磺隆对
Transplanting paddy in addition to the application of herbicides in transplanting paddy generally 10 days after planting appeared the first peak of the grass, mainly gramineous barnyardgrass, Trichosanthes and Cyperaceae Shaped sedge and other annual weeds, Occurred early, the number of large, endangering heavy; about 20 days after planting appear the second peak of the grass, mainly sedge weeds and broad-leaved weeds. Transplanted rice and weeds gap between the larger growth, with the physiological and biochemical selectivity but also has a bit of selectivity. Use these differences, we can achieve better weeding seedling effect. Amides and sulfonylurea herbicides with the development and application of the compound, so that the chemical weeding in transplanted paddy become a model of one-time weeding technology, the main herbicide varieties are ethylbenzene, ethylpyridine, butyl benzyl, butyl Isopropyl, Benzyl, Benzyl, Benzathine, Phenylthiopyridine and the like. At present, there are dozens of such herbicides in China, except for a slight difference in proportion and content, all of which are the same. Ethylenebenzothiazuron and its analogues have prevailed because of their low price and high efficiency. However, due to the agent’s insult to rice,