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小麦是环县首屈一指的粮食作物,常年种植面积约达120万亩,占粮田面积的70％以上。长时期来,广大农民在与干旱作斗争中成功地创造了“靠耧”(俗称小蛤蚂口)、“套耧”(大蛤蚂口)和“穴耧”(沟播、播后不耱)等抗旱丰产播种技术,对增加密度、加宽播幅、防冻保苗发挥了积极作用。但由于采用畜力牵引人工手摇耧播种,播量、间距难以把握,下籽不匀,种子入土深浅不一,浮籽大、缺苗断垄及越冬死苗严重,且肥、籽不能同播,肥料利用率低,既不能稳产高产,又费工费事。为此,研究探索小麦防冻保苗、抗旱丰产
Wheat is the leading food crop in Huan County, with perennial planting area of about 120 million mu, accounting for more than 70% of the total grain crop area. Over a long period of time, the vast majority of peasants have successfully created “leaning clam” (commonly known as clam claw), “clam clam” (clam claw) and “cave claw” in the fight against drought耱) and other drought-resistant sowing techniques, to increase the density, widen sowing, frost-proof seedlings played an active role. However, due to the use of animal power to pull artificial hand-crannied sowing, sowing, spacing is difficult to grasp, uneven seed, the seeds into the soil in different shades, floating seeds large, lack of seedlings broken ridge and overwintering dead seedling serious, and fertilizer, , Low fertilizer utilization, neither stable high yield, but also laborious and laborious. To this end, the study explored wheat frost-proof seedlings, drought-resistant and high yield