论文部分内容阅读
近几年来,我县单季杂交稻直播推广速度迅猛,1998年推广2000余公顷,占单季中稻20%左右。该项技术具有生育优势强,劳动强度小,节本,省工,增产等优点。在应用过程中,由于用种量少,一播全苗难度大等问题,生产上还存在一些薄弱环节,影响了增产潜力的发挥。为此,我们根据近几年来的试验研究与推广过程中积累的技术经验,将该项技术应把握好的6个问题总结如下。1 精细整田提高耕作质量耕作质量是一播全苗的基础。整田质量标准要求上团下糊,面平草净,按3～4米宽开好操作沟,沟宽25厘米,沟深20厘米,达到三
In recent years, the rapid propagation of single-season hybrid rice in our county has been rapidly promoted. In 1998, more than 2000 hectares were popularized, accounting for about 20% of single-season medium-sized rice. The technology has the advantages of reproductive advantages, labor intensity, section, labor, increase production and so on. In the process of application, there are still some weak links in the production due to the problems of less planting amount and difficulty in planting seedlings, which affects the potential of yield increase. Therefore, based on the technical experience accumulated in the pilot research and promotion in recent years, we summarize the six issues that the technology should have a good grasp of as follows. A fine whole field to improve the quality of farming Tillage quality is the basis of a full seedling. Whole field quality standards require the next group of paste, surface flat grass, according to 3 to 4 meters wide open good operation ditch, groove width 25 cm, groove depth 20 cm, reaching three