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在干旱土薄山地,无论采用鱼鳞坑或沟状整地定植果树,几年后均存在根系盘曲生长现象。因此,必须扩大根系营养面积才能保证山地果树的正常生育。1978年夏季,我们对山地核桃鱼鳞坑外缘进行一次深翻,而后连续放任管理,取得较好的效果。如在易县西太平峪大队核桃山试验。〈一〉材料:三年去薄皮核桃。面积1亩24株,对照0.8亩15株,树体长势基本一致。坡向东南,坡度20度。土壤为薄层沙壤土,
In arid and thin mountainous areas, no matter whether fish-scale pit or ditch-shaped soil preparation is used to plant fruit trees, root growth phenomenon occurs in a few years. Therefore, it is necessary to expand the root nutrient area in order to ensure the normal birth of mountain fruit trees. In the summer of 1978, we conducted a deep turn on the outer edge of the mountain walnut scoop and continued to let it go smoothly for good results. As in the West Pacific Valley Yili Walnut Hill test. <1> Material: Three years to thin walnut. An area of 24 acres of 1 mu, control of 0.8 acres of 15, basically the same body growth. Slope to the southeast, slope of 20 degrees. Soil is thin sandy loam,