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近几年来,玉米免中耕技术在我省发展很快,我们在昌图县宝力镇和头道乡进行的玉米药剂免中耕试验证明,这项新技术不但能节省良种和劳力、畜力,而且增产、经济效益高。1.节省种子在头道乡我们用小四轮拖拉机带两台单体2BF—2型播种机进行一次性侧深施肥精少量播种,每亩地比用大犁人工播种节省种子1.5公斤。每公斤种子按1.60元计算,可节省种子费2.40元。据调查,机械精少量播种保苗率可达95—97％,而人工播种、畜力中耕的地块保苗率只有80—90％。
In recent years, the technology of free cultivation of maize has been developing rapidly in our province. The experiment of free tillage of maize in Baoli Town and Toudao Township of Changtu County proves that this new technology can not only save seeds and labor, but also increase yield High economic efficiency. 1. Save the seeds In Tudao Township, we use a small four-wheeled tractor with two single 2BF-2 sowing machines to carry out one-time deep fertilization and fine sowing. Compared with Sowing Plow, artificial sowing saves 1.5 kg of seeds per acre. Calculated at 1.60 yuan per kilogram of seeds, seed costs can be saved 2.40 yuan. According to the survey, a small amount of mechanical precision seedling seedling maintenance rate of up to 95-97%, while artificial sowing, animal husbandry plots plot seedling protection rate of only 80-90%.