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水稻旱种是一项省水、省工、节能、高产、适于机械化操作、改变粮食构成和提高经济效益的种稻新技术。全国水稻旱种面积,从1982年的12万亩,扩大到1985年的240万亩(其中春播60万亩,夏播180万亩),河南省的麦茬水稻旱种面积,从1982年的1.1万亩,扩大到1985年的78万亩。几年来,经过了各地区科研和推广部门的努力,水稻旱种技术又有了新发展。兹将水稻旱种技术的发展、前景展望和存在问题分述如下。一、水稻旱种技术的发展(一)扩大了推广范围由于各地因地制宜地形成了适应不同生态环境的旱种类型,从华北和中原地区北向辽宁、吉林、黑龙江、内蒙古、山西、宁夏等地发展,南面突破皖北、苏北、向长江流域的湖北、湖南、四川等省的丘陵山区扩展。河南省从中北部逐步向南部延伸。这说明了水稻旱种技术具有广泛的实用性。
Dry cultivation of rice is a new technology for rice cultivation that saves water, saves labor, saves energy and produces high yields, is suitable for mechanized operations, changes in grain composition and increases economic benefits. The area of dry cultivation of rice in the country increased from 120,000 mu in 1982 to 240 million mu in 1985 (including 600,000 mu of spring sowing and 180 mu of summer sowing). The dry cultivation area of Henan stubble rice increased from 1.1 in 1982 Mu, expanded to 78 million mu in 1985. Over the past few years, after various regions of scientific research and promotion efforts, dry cultivation of rice technology has a new development. The development of rice dry farming technology, prospects and problems are described below. I. Development of Dry Cultivation Technology of Rice (I) Expanding the Scope of Popularization As the types of dry farming adapt to different ecological environments have been formed in different places, the development from north to central China to Liaoning, Jilin, Heilongjiang, Inner Mongolia, Shanxi and Ningxia , South of Anhui, northern Jiangsu and northern Jiangsu, Hubei, Hunan, Sichuan and other provinces to extend the hilly mountains. Henan Province gradually extends from the central north to the south. This shows that rice cultivation technology has a wide range of practicality.