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在山区种植果树,如何使有限的肥水发挥最大的经济效能,是很值得研究的问题。山东农业大学在蒙阴研究利用“穴贮肥水地膜覆盖”,解决果树肥水不足的做法,提供了有益的经验。1984—1987年我们推广这一新技术,获得了极显著的效果,现作小结如下。一、推广区自然条件青州市西南部为青石山区、果树大部分种植在海拔200—400m的地方。当地群众新栽果树几乎全为开石垒堰,客土造田,然后栽树。条田土层厚一般在40cm左右,土壤为壤土或“二性黄土”(地方称),山区肥料缺乏,降雨较少。近乎年
Growing fruit trees in mountainous areas and maximizing the economic efficiency of limited fertilizer and water are issues worth studying. Shandong Agricultural University in Mengyin study the use of “hole storage fertilizer water film mulching” to solve the fruit trees inadequate fertilizer practices, provided a useful experience. From 1984 to 1987, we promoted this new technology and achieved extremely remarkable results. Now we summarize the following. First, the promotion of natural conditions Qingzhou southwest of Qingshi Mountain, most of the fruit trees planted at an altitude of 200-400m place. The local people planted nearly all of the newly planted fruit trees to open the barrier weir, guest land, and then planted trees. The thickness of the soil in the bar field is generally about 40 cm. The soil is loam or “loessial loess” (local scale), the lack of fertilizers in the mountain area and less rainfall. Nearly years