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甘肃是以旱作农业为主的省份,旱地面积约240万hm2,占全省耕地面积的69%。自然条件严酷,农业基础薄弱,抗灾能力低,生态环境脆弱,是甘肃省旱作农业的基本特征。近年来以全膜双垄沟播为主的旱作农业技术在全省取得了显著的抗旱增产作用。甘肃省靖远县在若笠、大芦、高湾等旱农区实施了旱作农业项目,示范推广全膜双垄沟播玉米种植。在今年前期大旱之年,通过田间观察及大田测产,全膜双垄沟播种植明显较当地半覆膜的苗齐、苗壮、长势好,出苗率达到90%以上,显示出了全膜双垄沟播技术强大的抗旱保水效果。
Gansu is a province dominated by dry farming. Its dry land area is about 2.4 million hm2, accounting for 69% of the total arable land in the province. The harsh natural conditions, weak agricultural foundation, low resilience and fragile ecological environment are the basic characteristics of dry farming in Gansu Province. In recent years, the whole film double furrow sowing-based dry farming technology in the province has achieved significant drought and increased production. Jingyuan County of Gansu Province has implemented dry farming projects in dry farming areas such as Rao, Daylu and Gaowan to demonstrate and popularize the cultivation of corn with full film and double furrow. In the early dry year of this year, through field observation and field test, the planting of double-furrow sowing in the whole film was obviously better than that of the local semi-laminating seedling with good seedling growth and seedling emergence rate of more than 90%, showing the whole membrane Double furrow sowing technology powerful drought and water retention.