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一、伏刨的意义伏刨果园是同川梨区多年来对果园土壤管理的一项重要措施。因为同川的地势高燥,海拔高达1,000余米,土层厚约20—30米,地下水位甚低,一般深达30—40米。土壤甚为干旱,没有灌溉条件,降雨量较少,年雨量为450毫米左右,并且多集中在7—8月间。又因当地春季非常干旱,在20厘米的土壤耕作层中,含水量仅为9%,表土形成板结,耕后的土壤多为块状。因此在春季进行耕地施肥,常得不到应有的效果,所以一般多在伏天结合刨树盘,将人粪、厩肥、羊粪混合集中施于树冠下作追肥用。同时伏天正值雨季,由于土壤湿润、疏松,深刨后不易伤根,而且在
First, the meaning of volt planing Volleyball planing orchard with the same area for many years orchard soil management an important measure. Because of the high terrain of Tongchuan, the altitude is as high as 1,000 meters and the soil layer is about 20-30 meters thick. The groundwater level is very low, generally 30-40 meters in depth. The soil is very arid, without irrigation conditions, with less rainfall, with an annual rainfall of around 450 millimeters and mostly concentrated between July and August. Due to the very arid spring in the spring, the moisture content in the 20 cm soil tillage layer is only 9%. The surface soil forms a plate knot, and the plowed soil is mostly massive. Therefore, in the spring arable land fertilization often can not get its due effect, so the general combination of planing tree leaves in the volt days, the human waste, manure, sheep manure mixed concentrated under the crown for top dressing. At the same time V days are positive rainy season, due to soil moist, loose, easy to hurt the roots after planing, but also in