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首页> 外文期刊>Journal of Nematology, with Annual of Applied 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 field trial was conducted to examine whether strip-tilled cover cropping followed by living mulch practice could suppress root-knot nematode (Meloidogyne incognita) and enhance beneficial 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 experiment was conducted twice (Season I and II). Strip-tilled cover cropping with SH prolonged M. incognita suppression in Season I 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 of SH followed by clipping of the living mulch as surface mulch also reduced broadleaf weed populations up to 3 to 4 weeks after cash crop planting. However, SH failed to reduce soil disturbance as indicated by the Structure Index. Marigold suppressed M.incognita efficiently when planted immediately following a M. incognita-susceptible crop, but did not enhance beneficial 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：进行了一项田间试验，以检查条带倾斜地覆盖作物种植和随后的覆盖措施是否能抑制根结线虫（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。实验进行了两次（第一和第二季）。在第一季，带SH的带状地垄覆盖作物延长了隐孢子虫的抑制作用，而在第二季则没有，因为抑制作用与作物生长的增强抵消了。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。 SH的条带覆盖式地表作物种植，然后剪掉活覆盖物，因为地表覆盖物在经济作物种植后的3-4周内也减少了阔叶杂草种群。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，万寿菊可有效抑制隐孢子虫，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中节肢动物。在第二季经济作物种植之前，MG的条状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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