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为了挖掘现有核桃树的生产潜力,提高产量,1980到1983年,山西省林科所在蒲县进行核桃丰产栽培试验,在所采取的各项措施中,以去除雄花芽增产效果最显著,年平均增产47.5%。1983年又在五台、屯留、灵石、左权进行中间试验,当年就增产30~60%。本试验表明,核桃去雄的经济效益高,操作简便,容易推广。一、立地条件及试验方法试验点立地条件见表1。试验材料都是山西本地的核桃树。试验采取局部控制、随机区组、多次重复的方法。选择树龄一样、立地条件近
In order to excavate the production potential of the existing walnut trees and increase the yield, from 1980 to 1983, the high-yield walnut cultivation experiment was conducted in Puxian County, Shanxi Province. Among all the measures taken to eliminate the male flower buds, The average annual increase of 47.5%. Again in 1983, Wutai, Tunliu, Lingshi, Zuoquan intermediate test, the year increased production of 30 to 60%. The test shows that walnut to male high economic efficiency, easy to operate, easy to promote. First, the site conditions and test methods Site conditions shown in Table 1. The test materials are local walnut trees in Shanxi. Test to take local control, randomized block, multiple repetitive methods. Select the same age, site conditions