水稻免耕栽培关键技术研究

Study on Key Techniques of No-tillage Culture of Rice

对免耕水稻的松土、除草、施肥、移抛栽等关键技术进行了研究,结果表明:施用免深耕土壤调理剂能降低土壤容重、增加土壤阳离子交换量;不同种类的除草剂对不同类型的杂草的除草效果不同,应根据杂草的类型选择合适的除草剂或几种除草剂综合施用;应采用小量多餐、化肥后移、根外补肥的施肥技术;应采用小苗带土移栽或抛栽的移栽技术。

The key techniques including scarification, weed, fertilization methods, transplanting and throw - planting seedlings in the no- tillage rice were researched. The results indicated that, the soil bulk density decreased and the cation exchange capacity increased after being treated with soil regulator; there was different effects of different type herbicides on the different type weeds , so reasonable herbicide or scientific mix herbicides should be chosen based on the type of the weeds; fertilization methods of applying many times with little quantity one time, increasing fertilization proportion at late growth stage of the rice and supplying fertilizer by spraying on leaf should be used; and transplanting techniques of seedling must be with soil or throw - planting.