| 张婷,孔云,修伟明,李刚,赵建宁,杨殿林,张贵龙,王丽丽.生物有机肥与化肥配施对华北潮土区冬小麦田土壤线虫群落的影响[J].干旱地区农业研究,2020,38(1):223~229 |
| 生物有机肥与化肥配施对华北潮土区冬小麦田土壤线虫群落的影响 |
| Effects of coupled bio\|organic and chemical fertilizers on soil nematode communities in winter wheat field in the fluvo\|aquic soil region of Northern China |
| |
| DOI：10.7606/j.issn.1000-7601.2020.01.29 |
| 中文关键词: 生物有机肥 化肥 土壤线虫 群落结构 冬小麦田 华北潮土区 |
| 英文关键词:bio\|organic fertilizer chemical fertilizer soil nematodes community structure winter wheat field fluvo\|aquic soil |
| 基金项目:公益性行业（农业）科研专项（201503121-04）；国家重点研发计划支持项目（2016YFD0201009） |
|
| 摘要点击次数: 1126 |
| 全文下载次数: 536 |
| 中文摘要: |
| 为了研究华北潮土区生物有机肥与化肥配施对冬小麦田土壤线虫群落结构的影响，在天津市宁河区试验基地设置了单施化肥（A1）、单施生物有机肥（A2）、减量50%生物有机肥与化肥配施（A3）、常量生物有机肥与化肥配施（A4）、增量50%生物有机肥与化肥配施（A5）5个施肥处理。结果表明：整个调查期共鉴定出6目、17科、26属土壤线虫，食细菌性线虫和植食性线虫在各处理中均为优势营养类群。不同处理的土壤线虫数量为A4>A5>A3>A2>A1，其中A4处理显著高于A1处理（P<0.05）。生物有机肥-化肥配施处理中食细菌性线虫和捕食-杂食性线虫的相对丰度分别提高了1.67%~7.00%和1.00%~18.67%，食真菌性线虫和植食性线虫的相对丰度分别降低了2.33%~12.00%和0.34%~10.34%。从土壤线虫生态指数来看，优势度指数（λ）和富集指数（EI）不受施肥措施的影响。生物有机肥-化肥配施可增加土壤线虫类群多样性，A5处理的线虫WI、MI、SI和J指数分别为2.85、2.18、60.83和1.05，均高于其他处理，表明配施过程中增施生物有机肥可丰富土壤线虫食物网结构，提高土壤环境的稳定性和土壤健康程度。生物有机肥-化肥配施在一定程度上促进了线虫的繁殖，提高了线虫种类多样性，并通过增强线虫食物网的稳定性以降低其受干扰程度。 |
| 英文摘要: |
| In order to study the effect of different fertilization treatments on soil nematode community in winter wheat field in the fluvo\|aquic soil region of Northern China, field experiments with different fertilization treatments were set up in Ninghe district of Tianjin City. Five treatments were implemented including the single application of fertilizer (A1), single application of bio\|organic fertilizer (A2), reduced by 50% of the amount of bio\|organic fertilizer and fertilizer application (A3), equal application of bio\|organic fertilizer and fertilizer application (A4), and incremental 50% bio\|organic fertilizer combined with chemical fertilizer (A5). The results showed that a total of 6 orders, 17 families and 26 genera of soil nematodes were identified in the whole investigation period, among which bacterivores nematodes and plant parasitic nematodes were dominant nutritional groups in all treatments. The number of soil nematode worms under different treatments was A4>A5>A3>A2>A1, among which A4 was significantly higher than A1 (P<0.05). The relative abundance of bacterivores nematodes and predator\|omnivorous nematodes increased in the order of 1.67%~7.00% and 1.00%~18.67%, respectively, and the number of fungal nematodes and plant parasitic nematodes increased by 2.33%~12.00% and 0.34%~10.34%. From the soil nematode ecological index, the dominance index (λ) and enrichment index (EI) are not affected by fertilization measures. Bio\|organic fertilizer\|fertilizer application can increase soil nematode diversity. The WI, MI, SI and J indexes of A5 treated nematodes were higher than other treatments, indicating that the application of bio\|organic fertilizer in the application process enriched the soil nematode food network structure and improve soil environmental stability and soil health. It was seen that the combination of bio\|organic fertilizer and chemical fertilizer promoted the propagation of nematodes to a certain extent, improved the diversity of nematode species, and reduced the degree of interference of nematode by enhancing the stability of its food network. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| | |