太湖稻区机插稻高产关键技术研究

Research on Key Techniques for High Yield through Mechanical Transplanting in Rice Planting Region

对机插育秧专用肥、播种量、播栽期、栽插密度、氮肥等进行试验示范,结果表明,机插稻获得大面积产量650 kg∕667 m2,采用育秧基质和机插秧育秧专用肥、常规粳稻播种量干谷100～120 g/盘、湿谷120～150 g/盘,正常育秧肥用量适宜播栽季节,秧龄在18～20 d,可培育适于机插的壮秧;在每667 m2插足1.8万穴,基本苗6万左右;同时要适期栽插,一般在6月10～20日栽插;适施氮肥,氮肥运筹前后比例以6:4较适宜,有利于足穗、大穗实现优质高产。

The test studied the special fertilizer for mechanical transplanting, sowing amount, date of planting and transplanting and Nitrogen fertilization, the results indicated that the yield can achieve 650 kg/667 m^2 by using mechanical transplanting, it can get sturdy seedling for mechanical transplanting which used seedlings matrix and special fertilizer, the sowing amount of conventional japonica rice varieties were 100-120 g/plate for dry seed or 120~150 g/plate for wet seed, normal amount of fertilizer and suitable seedling age from 18 to 20 d. When the transplanting density was 18 000 hills/667 m^2 and the basal seedling density on bed is 60 000, date of planting and transplanting was from June 10 to June 20, the ratio of nitrogen fertilization was 6：4, it would be good for full panicles to get high yield.