论文部分内容阅读
近几年来,我省油菜籽总产提高幅度较大,主要是栽种面积增加。但仍有起伏,关键是单产不高。从全省夏收作物栽培总面积看,增加夏粮面积势在必行,因此,提高油菜单位面积产量,挖掘油菜增产潜力,是当前进一步提高油菜产量的重要途径。目前我省的高产典型,一般都在200~300斤/亩,究其原因,首先在于选用高产的甘蓝型品种,其次是改进现有的粗放栽培为精耕细作,同时根据油菜生长发育特
In recent years, our province rapeseed increased gross margin, mainly due to increased plantings. But there are still ups and downs, the key is not high yield. Therefore, it is imperative to increase the area of summer grain crops from the total summer crop planting area in the whole province. Therefore, it is an important way to increase the yield of rapeseed by increasing yield per unit area of rapeseed and increasing potential yield of rapeseed. At present, the province’s high-yield typical, are generally 200 to 300 pounds / mu, the reason, first of all is the selection of high-yielding varieties of cabbage, followed by the improvement of the existing extensive cultivation for intensive cultivation, at the same time according to rape growth and development