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水稻旱种是七十年代以来开始发展的一种种稻新技术.基本栽培技术是选用耐旱力强的水稻品种,浸种不催芽,插入底墒充足的旱地土中(砂壤土播后灌蒙头水,以保全苗),稻苗3—4叶期开始灌溉,根据水源和土壤保水状况,实行前旱后水或前旱后湿两种灌溉方式.它具有省水省工,便于机械化,经济效益较高的特点,一般可比水田插秧节省二分之一至三分之二的水量,每亩省工十多个,纯经济收益较之玉米高50元左右,是灌溉水源不足或虽有水源但土壤漏水严重地区发展水稻生产的一种好方式.1983年中央农牧渔业部将其列为农业新技术重点推广项目.1984年北方地区水稻旱种已发展到130多
Dry cultivation of rice is a kind of new rice technology which started to develop since the seventies.The basic cultivation technology is to select rice varieties with high drought tolerance and soaking in non-germination, , In order to protect the seedlings), rice seedlings 3-4 leaf stage began to irrigate, according to the water and soil water conservation, the implementation of the former drought water after the drought or wet two kinds of irrigation. It has a provincial water-saving workers, easy mechanization, economic benefits Higher characteristics, generally can save one-second to two-thirds of the amount of water than paddy field transplants, more than ten provincial workers per acre, net economic income of about 50 yuan higher than corn, irrigation is inadequate or though water Soil erosion in a serious area of ?? a good way to develop rice production in 1983 the Central Bureau of Animal Husbandry and Fisheries will be listed as a key new agricultural technology promotion project in 1984 in the northern region of rice cultivation has grown to more than 130