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作 者:汪长水
机构地区:[1]福建省林业科技试验中心
出 处:《福建林业科技》1998年第2期41-44,50,共5页Journal of Fujian Forestry Science and Technology
摘 要:对以3年生南岭黄檀为寄主的紫胶虫的幼虫期和成虫期进行喷施肥药试验。结果表明:适时合理的喷施、管理能提高紫胶的一、二级比例和放收比;幼虫期管理的最佳组合为紫胶虫固定后10d对寄主树根部每株施尿素200g、过磷酸钙500g,对固虫过多的细枝进行抹虫,并对树冠喷2.5%的稀土液;成虫期管理的最佳组合是紫胶虫涌散前60d施尿素200g/株,在树冠上喷1%K2PO4和40×10-6赤霉酸。The experimental results showed that the timely and rational spray management could raise the proportion of Grade One and Grade Two and the ratio of release to harvest of lac;in the larva stage,the optimal management combination was that ten days after the lac insect fixation,200g of urea and 500g of calcium superphosphate were applied to the root of each host tree,some lac insects were erased on the group branches with excessive fixed lac insects and meanwhile 25% of rare earth liquid was sprayed to the crown;and in the adult stage,the optimal management combination was that sixty days before the lac insect swarming,200g of urea were applied to each tree and 1% of K2Po4 & 40×10-6of gibberellic acid were applied to the crown.
分 类 号:S147.4[农业科学—肥料学] S899.2[农业科学—农业基础科学]
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