论文部分内容阅读
山丘旱薄地土体薄、土质差,蓄水能力低,灌溉条件差,产量低而不稳.胶东群众创造出立足于土,着眼于水,紧跟上肥的改土经验,增产效果显著.1、扩大土壤蓄水量,逐年加厚土层,一般逐年加厚至2.0-2.5尺,沙性比粘性土壤加的厚,石碴土可至2.5～3.0尺.还可用破除犁底层,大犁深耕、破除浅位粘紧障碍层等措施.2、蓄贮降水,多种方法发展灌溉.措施:修建水库塘池,创造自流灌溉和低扬程提灌条件,扩大山丘中上部灌溉面积,沿河拦蓄明水,截潜流源,修建方塘、大口
The hills dry thin soil, thin soil, poor soil, low water storage capacity, poor irrigation conditions, low yield and instability.Jiaodong masses to create based on the soil, focusing on water, followed by the fertilizer on soil improvement experience, significantly increasing yield .1 to expand the soil water storage, thicken the soil layer year by year, the general year thickened to 2.0-2.5 feet, sand than the thick clay, soil ballast can be 2.5 to 3.0 feet can also be used to break the plow floor, Plowing and plowing deep plowing, breaking the shallow sticky obstacle layer and other measures .2, storage and precipitation, a variety of ways to develop irrigation measures: building ponds, to create gravity irrigation and low lift irrigation conditions, to expand the upper irrigation area, Interception of Ming water along the river, cut-off stream source, building Fang Tang, big mouth