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首页> 外文期刊>Journal of Nematology >Strip-tilled Cover Cropping for Managing Nematodes, Soil Mesoarthropods, and Weeds in a Bitter Melon Agroecosystem
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Strip-tilled Cover Cropping for Managing Nematodes, Soil Mesoarthropods, and Weeds in a Bitter Melon Agroecosystem

机译：条形倾斜式覆盖作物在苦瓜农业生态系统中处理线虫，土壤中节肢动物和杂草

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A?eldtrialwasconductedtoexaminewhetherstrip-tilledcovercroppingfollowedbylivingmulchpracticecouldsuppress root-knot nematode (Meloidogyne incognita) and enhance bene?cial nematodes and other soil mesofauna, while suppressing weeds throughout two vegetable cropping seasons. Sunn hemp (SH), Crotalaria juncea, and French marigold (MG), Tagetes patula, were grown for three months, strip-tilled, and bitter melon (Momordica charantia) seedlings were transplanted into the tilled strips; the experimentwasconductedtwice(SeasonIandII).Strip-tilledcovercroppingwithSHprolongedM.incognitasuppressioninSeasonI but not in Season II where suppression was counteracted with enhanced crop growth. Sunn hemp also consistently enhanced bacterivorous and fungivorous nematode population densities prior to cash crop planting, prolonged enhancement of the Enrichment Index towards the end of both cash crop cycles, and increased numbers of soil mesoarthropods. Strip-tilled cover cropping ofSHfollowedbyclippingofthelivingmulchassurface mulchalsoreducedbroadleafweedpopulationsupto 3 to4 weeksaftercash crop planting. However, SH failed to reduce soil disturbance as indicated by the Structure Index. Marigold suppressed M. incognita ef?ciently when planted immediately following a M. incognita-susceptible crop, but did not enhance bene?cial soil mesofauna including free-living nematodes and soil mesoarthropods. Strip-tilled cover cropping of MG reduced broadleaf weed populations prior to cash crop planting in Season II, but this weed suppression did not last beyond the initial cash crop cycle.
机译：进行实地覆盖试验后，是否可以进行草场覆盖试验，可以抑制根结线虫（Meloidogyne incognita）并增强有益的线虫和其他土壤中生动物，同时在整个两个蔬菜种植季节都可以抑制杂草。 n麻（SH），猪屎豆属（Ctalalaria juncea）和法国万寿菊（MG）（Tagetes patula）生长了三个月，进行条带平整，然后将苦瓜（Momordica charantia）的幼苗移植到耕条中。该实验进行了两次（SeasonI和II）。SH延长了条带平铺覆盖，延长了M.incognitasuppression在第I季，但在第II季则没有，因为抑制了作物生长的增加。在经济作物种植之前，麻还不断提高细菌性和真菌性线虫的种群密度，在两个经济作物周期结束时延长了丰富度指数，并增加了土壤中节肢动物的数量。在种植农作物后的3至4周内，通过修剪生活性地表覆盖物进行带状地表覆盖的SH修剪，也减少了阔叶杂草的种群。但是，如结构指数所示，SH未能减少土壤扰动。万寿菊易感作物种植后立即播种，万寿菊能有效地抑制隐身线虫，但不能增强有益的土壤中生动物，包括自由生活的线虫和土壤节肢动物。在第二季经济作物种植之前，MG的条带倾斜地覆盖作物减少了阔叶杂草的数量，但是这种杂草抑制作用并未持续到最初的经济作物周期之外。

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