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造成核桃低产的原因很多,但主要原因是品种混杂,实生繁殖,导致生产中因品种良莠不齐而直接影响栽培的经济效益,加之长期对核桃树不进行修剪,不肥培管理,致使树势衰弱,营养失调,结果不多,树体透光不良,病虫害严重、产量低而不稳。为了寻求克服核桃高产、稳产、优质的途径,康县供销社在康县林业委员会(林业局)、康县科协及省、地党委、政府和业务主管部门的协助和支持下,成立了核桃课题组,于1975—1985年对康县核桃
Low yield of walnut caused many reasons, but the main reason is the variety of mixed, live reproduction, resulting in the production of a variety of varieties directly affect the economic benefits of cultivation, combined with long-term walnut trees are not pruning, fertilizer management, resulting in frail, nutrition Disorders, the result is not much, poor light transmission trees, pests and diseases serious, low yield and instability. In order to seek to overcome the walnut high yield, stable yield, high-quality way, Kangxian supply and marketing cooperatives in Kangxian Forestry Committee (Forestry Bureau), Kangxian Association and provincial and municipal Party committee, government and business authorities with the assistance and support, the establishment of walnut Task Force, from 1975 to 1985 on the Kangxian walnut