长残效除草剂田下茬种植水稻药害缓解效果研究

试验模拟在土壤中施用三种长残留除草剂后移栽水稻,研究长残留除草剂对水稻的影响,同时应用生物缓解技术做处理,调查水稻整个生育期的生长情况、株高、分蘖、结实率及产量,结果表明:在含有咪草烟、阿特拉津、氯嘧磺隆的土地上插秧,对水稻药害大;水稻应用生物缓解技术做处理可以有效缓解长残留除草剂药害,增加水稻穗粒数、提高结实率、增加千粒重,提高水稻产量有一定的作用,同时对不含有长残留除草剂的处理有促进生长,增加产量的作用。

Research on Phytotoxicity Anesis of Rice Next Cultivation under the Condition of Long Residual Herbicides

The test simulate soil environment which use three long residual herbicides and then plant rice, to research the effect on rice, at the same time it use biological mitigation technology as control to investigate growth, plant height, tillering, setting percentage and yield of rice in the whole growth stage. The result indicated that transplant rice seedlings in the soil with Imazethapyr, Atrazine and Chlorimuron can cause the phytotoxicity and use biological mitigation technology can relieve, then it can increase grain number, setting percentage and thousand-grain weight so as to increase yield, at the same time it pointed out the treatment with no long residual herbicides can promote growth and increase yield.