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水稻常规手栽秧移栽劳动强度大,季节集中。农技工作者经过一系列的深入研究,先后提出了水稻小苗机插、水稻直播和塑盘育水稻抛秧技术,相比较而言,水稻抛秧,由于一次性投资较少,又避免了水稻直播成苗和杂草为害的两大弊端,故在生产实践中,其应用面积越来越大。从栽培生态学而论,塑盘育抛秧水稻,秧苗苗体与机插小苗相仿,由于育秧方式以及移栽方式的差异,其根系生长以及地上部的发育有所不同,直接影响到经济产量的形成。为此,我们从1990年起,展开了抛秧水稻根系生长发
Conventional rice seedlings transplanting labor intensity, the season concentrated. After a series of in-depth studies, agricultural workers have put forward rice seedling machine insertion, rice direct seeding and plastic trapping rice seedling throwing technology, comparatively speaking, rice throwing transplanting rice, due to a one-time investment is less, but also to avoid rice Live seedlings and weeds harm the two major drawbacks, it is in production practice, its application area is more and more big. From the perspectives of cultivation ecology, the plastic-discarded cast-off paddy rice and seedling seedling body are similar to the machine-inserted seedling seedlings. Due to the differences in the seedling transplanting methods and the transplanting methods, the growth of the root system and the development of the shoots are different and directly affect the economic output Formation. To this end, we started in 1990, throwing rice seedling root growth