玉米/花生间作对土壤微生物和土壤养分状况的影响
摘要： 通过大田试验，研究了玉米/花生间作对玉米和花生根区土壤微生物和土壤养分状况的影响.结果表明：与单作相比，间作能显著提高玉米和花生根区的土壤细菌数量；间作花生根区土壤真菌和放线菌数量与单作无显著差异；间作玉米根区土壤真菌和放线菌数量比单作明显提高；间作作物根区微生物群落功能多样性和代谢活性比单作有所改善.玉米/花生间作不同程度提高了整个间作系统根区的土壤碱解氮、速效磷、有机质含量及EC值，其中，间作玉米根区土壤养分的增加更为明显，说明玉米/花生间作可以较明显地改善两种作物根区的微生物和养分状况，土壤微生态环境的改善又会促进作物地上部的生长.
关键词: 美丽箬竹, 黄条金刚竹, 白缟椎谷笹竹, CO2浓度升高, 膜质过氧化, 抗氧化系统
Abstract: A field experiment was conducted to study the effects of maize/peanut intercropping on the rhizosphere soil microbial community and nutrient contents. Three treatments were installed, i.e., maize/peanut intercropping, maize monoculture, and peanut monoculture. Comparing with monoculture, intercropping could significantly increase the quantity of soil bacteria in both maize and peanut root areas. The numbers of soil actinomyces and fungi had no significant differences in the root areas of intercropped and mono-cultured peanut, but were much higher in intercropped than in mono-cultured maize root area. The functional diversity and metabolic activity of soil microbial community also improved under intercropping. Maize/peanut intercropping increased the soil alkali-hydrolysable N, available P and organic matter contents and EC to some extent, especially in the root area of maize. All the results suggested that maize/peanut intercropping could obviously improve the status of soil microbes and nutrients in root areas, which in turn, would promote the growth of intercropped crops.
Key words: Indocalamus decorus, Pleioblastus kongosanensis, Sasa glabra, elevated CO2 concentration, lipid peroxidation, anti-oxidation enzyme system.
相关知识
花生不同种植方式对田间土壤微环境和产量的影响
乙草胺在花生和土壤中的残留研究
土壤调理剂和生草互作对果园酸化土壤化学性质及产量的影响
紫色土壤花生施肥试验
淮北地区土壤养分状况分析及种植结构调整
耕作方式与土壤调理剂互作对土壤理化性质及花生产量的影响
茶园间作对茶树生长及生态的影响
不同轮作模式对青贮玉米产量、品质及土壤肥力的影响
高油酸花生应用土壤调理剂增产效果研究
花生对土壤中铅和镉的吸收分配规律
网址: 玉米/花生间作对土壤微生物和土壤养分状况的影响 https://m.huajiangbk.com/newsview425510.html
| 上一篇: 生草果园土壤微生物群落的碳源利用 |
下一篇: 无土栽培可以种植哪些 |
