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我省山区、半山区耕地面积约占总耕地面积的三分之二,旱地作物的产量占很大比例。但由于水源积蓄少,严重影响作物产量。喷灌既能省水,又能增产,有推广应用的现实意义。为了摸索旱地小麦生长发育的需水规律,探讨在喷灌条件下,小麦的适宜土壤水份变化范围,我所根据中央水电部下达的科研任务从一九七九年十月开始进行田间试验。试验区4.8田。采用固定式喷灌,喷头为工农Ⅰ型,抽水设备为3—X_(45)型自吸泵,动力为7.5瓩电机。试验按不同的土壤含水率控制要求,分
The mountainous area and the mid-mountainous area in our province account for about two-thirds of the total cultivated area, and the output of dry-land crops accounts for a large proportion. However, due to less water reserves, seriously affecting crop yields. Sprinkler irrigation can save water, but also increase production, promote the practical significance. In order to explore the law of water requirement for dryland wheat growth and development and to explore the range of soil moisture suitable for wheat under sprinkler irrigation conditions, we conducted field trials from October 1979 on the basis of scientific research tasks assigned by the Central Ministry of Water Resources. Experimental area 4.8 Tian. Using fixed sprinkler irrigation, sprayers for workers and peasants type Ⅰ, pumping equipment for the 3-X_ (45) -type self-priming pump, power 7.5 瓩 motor. Test according to different soil moisture content control requirements, points