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我们地区春季多风少雨,年年春旱,严重影响着新栽核桃幼树的成活。近几年来,我们在北黄土坡,选择10个核桃品种, 共栽植513株,进行了秋栽埋土防寒,春季不撤防寒土的试验,取得了良好效果。成活率平均达98.4％,生长健壮(见图),比对照生长量提高1—2倍以上,各别植株出现了当年开花结果的现象。同时可省去春季浇水用工,把春栽改秋栽埋土,又调解了农忙季节。现将具体作法简介如下。
In our region, windy and rainy spring and drought year after year severely affected the survival of newly planted walnut saplings. In recent years, we selected 10 walnut varieties in the northern loess slope and planted a total of 513 plants. We carried out the experiments of cold-planting buried soil in autumn and no dismantling cold soil in spring, and achieved good results. The average survival rate of 98.4%, robust growth (see Figure), compared with the growth of more than 1-2 times the control, individual plants appeared the flowering of the year phenomenon. At the same time can save the spring watering workers, planted autumn planting planted spring, but also mediate the busy season. The specific practices are as follows.