论文部分内容阅读
地膜水稻是河北省承德市农技人员经多年研究成功的省水、省工、高产增效的科技成果,为北方贫水区发展节水农业探索出一条成功之路,主要技术要点有以下几项。1 栽培条件无霜期不少于125d,≥10℃有效积温2500℃,年降雨量约400mm 及有灌溉条件的地方均能栽培地膜水稻。2 整地,做畦耕地翻耙灭茬后平整畦面。每畦面积100～600m~2。1～2排畦设一条灌水渠,引用河水灌溉的增没排水渠。播种前10d 在畦内灌水进行水耙。畦面高
Membrane rice is a scientific and technological achievement of successful research on water-saving, labor-saving and high-yield and efficiency of agricultural technicians in Chengde City, Hebei Province for many years. It explores a successful road for developing water-saving agriculture in impoverished northern areas. The main technical points are as follows item. 1 cultivation conditions Frost-free period of not less than 125d, ≥ 10 ℃ effective accumulated temperature of 2500 ℃, the annual rainfall of about 400mm and irrigated conditions can cultivate plastic film paddy. 2 site preparation, do Cang Cultivated land rake stubble after flat surface. Each area of ?? 100 ~ 600m ~ 2.1 ~ 2 row set up a irrigation canal, irrigation quota increase the drainage channels. Ten days before sowing, watering was carried out within the shovel. Face high