农业环境科学学报Issue(9)：1762-1769,8.DOI:10.11654/jaes.2014.09.014
麦秸淹水处理对连作土壤性状和辣椒疫病田间防控效果的影响
Effects of Wheat Straw with Flooding on Soil Properties and Phytophthora Blight Control in Continuous Chili Pepper Cropping Field
摘要
Abstract
Crop residues may be used to control soil borne plant diseases. In a laboratory experiment, the effects of different rates of wheat straw on soil physical properties and Phytophthora capsici population were studied under different flooding time. The impact of wheat straw with flooding on the growth and yield of chili pepper was carried out in high tunnel fields. Compared to moist soil, applying wheat straw and flooding significantly decreased soil EC but increased organic matter, available phosphorus, available potassium, organic acids and phenolic acid contents. The number of P. capsici was reduced significantly in both flooding only and flooding plus wheat straw in comparison with the moist soil. Application of 0.25%wheat straw with flooding for 10 days or 14 days strongly inhibited the growth of P. capsici. However, such inhibition to P. capsici declined with increasing rates of wheat straw. Field tests showed that flooding for 20 days with wheat straw addition at 400 kg/667 m2 not only increased contents of ammonium nitrogen, available phosphorus and available potassium but also effectively reduced disease incidence of chili pepper blight, promoting pepper growth and enhancing chili pepper yield by 12%.关键词
淹水/麦秸/土壤性状/辣椒疫霉/辣椒疫病Key words
flooding/wheat straw/soil property/Phytophthora capsici/Phytophthora blight分类
资源环境引用本文复制引用
顾志光,马艳,安霞,王光飞,孙迪,王秋君..麦秸淹水处理对连作土壤性状和辣椒疫病田间防控效果的影响[J].农业环境科学学报,2014,(9):1762-1769,8.基金项目
农业部公益性行业计划 （）
