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一、旱作农业是发展我县农业的根本途径定西县位于甘肃中部。旱灾面积因年度有别,占耕地的22—77％。三十三年来发展保灌面积10.27万亩,仅占耕地的5.3％。因此,最大限度地接纳降水,使有限的水份发挥最大的作用,研究提高旱作农业效益,是发展我县农业的根本途径,是开展农业新局面的头等大事。“旱作农业”又称“旱作栽培”、“旱农耕作”“雨养农业”。就是因地制宜地建立用地养地相结合的耕作制度,保持水土,发展种草(包括绿肥),大量增施有机肥料,不断提高土壤肥力,采用抗旱作物品种,配合一系列抗旱耕作方法,使作物于雨量不足情况下,不用灌溉,而能使之生长良好的一种耕作栽培方法。而不是靠天农业,也不是广种薄收。旱作农
First, dry farming agriculture is the fundamental way to develop our county Dingxi County is located in central Gansu. Drought area due to different year, accounting for 22-77% of arable land. In the thirty-three years, a total area of 127,700 hectares of irrigated area has been developed, accounting for only 5.3% of the cultivated land. Therefore, it is the fundamental way to develop the agriculture in our county to study and improve the agricultural benefit of dry farming to maximize the acceptance of precipitation and maximize the limited water. It is also the top priority to carry out the new situation of agriculture. “Dry farming”, also known as “dry cultivation”, “dry farming” “rain farming.” It is based on the local conditions to establish a combination of land conservation farming system to maintain soil and water, the development of grass (including green manure), a substantial increase in organic fertilizers and continuously improve soil fertility, using drought-resistant crop varieties, with a series of drought-resistant farming methods, so that crops in In the case of insufficient rainfall, there is no irrigation, but can make it grow well. Rather than rely on the days of agriculture, nor is it a wide variety of thin income. Dry farming