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为摸清不同虫口密度下蛴螬对花生产量造成的危害和减产情况,在山东、江苏、安徽三省六地进行了蛴螬危害花生致使产量损失的田间试验,并进一步分析了耕作方式、施肥、作物布局对蛴螬虫口密度的影响。结果表明,不同种植地区花生田蛴螬虫口密度存在较大差异,在3.50~56.67头/m2间,因蛴螬造成的产量损失率在1.47%~48.29%;显著性分析结果表明,除蛴螬虫口密度相对较小的山东潍坊寒亭区和安徽合肥肥西县两个试验点外,其他各试验点蛴螬防治区与未防治区的花生产量均有显著性差异。在玉米—小麦—花生轮作区,免耕田蛴螬虫口密度最高,达9.86头/m2,翻耕田虫口密度其次,为6.96头/m2,休耕田虫口密度最低,为4.76头/m2。施肥种类对蛴螬虫口密度有一定的影响,其中施用鸡粪和草木灰田花生蛴螬虫口密度最高,而牛粪、羊粪相对较低。作物布局对蛴螬虫口密度影响较大,其中杨树—花生间作、梨树—花生间作田蛴螬虫口密度分别为29.75头/m2、28.00头/m2,显著高于纯花生种植区(16.50头/m2)。
In order to find out the damage and yield reduction of peanut in different insect population densities, field experiments on peanut yield loss were conducted in Shandong, Jiangsu and Anhui provinces. Further analysis was made on the cultivation methods, fertilization and crop layout Effect on the population density of stink bug. The results showed that there was a big difference in the population density of stinkbugs in peanut fields in different planting areas. The yield loss rate was 1.47% ~ 48.29% in the range of 3.50 ~ 56.67 head / m2 due to stinkbugs. The results of significance analysis showed that, Smaller Weifang Hanting area and Anhui Hefei Feixi two test points, the other experimental sites and control areas are not precautionary control zone peanut production were significantly different. In the field of corn-wheat-peanut rotation, the population density of Trichosanthes putida was 9.86 heads / m2 in no-till field, followed by 6.96 heads / m2 in tillage field and 4.76 / m2 in fallow field. The types of fertilizers had some influence on the population density of the stinkbugs, in which the population density of peanut stinkbugs was the highest in the manure and grass ash fields, while the cow manure and sheep manure were relatively low. The crop density had a great influence on the population density of poplar. The population densities of poplar-peanut intercropping and pear-peanut intercropping were 29.75 heads / m 2 and 28.00 heads / m 2, respectively, which were significantly higher than those in pure peanut planting area (16.50 heads / m 2 ).