甘肃农业科技Issue(8)：19-22,4.DOI:10.3969/j.issn.1001-1463.2015.08.007
渭河上游长期设施种植对土壤盐渍化及硝态氮含量的影响
Effect of Long-term Greenhouse Cultivation on Soil Nitrate Nitrogen Content and Salinization in Wei River Upstream
摘要
Abstract
The study of the effects of long-term continuous cultivating greenhouse vegetables on pH,total salt and nitrate nitrogen content of top soil(0~20 cm)is carried out through sampling top soil of open field and different cultivating years greenhouse in Wushan county of Tianshui city of Wei River upstream. The result shows that soil pH of different cultivating years greenhouse vegetable field top (0~20 cm)all significantly lower than that of open field,and with the extension of cultivating years,the soil pH declined significantly,moreover,it significantly negatively related with cultivating years,every year declined 0.05 units pH. In contrast,the soil total salt content significantly positively reached related to cultivating years and increased by 0.18 percent point per year. Continuous cultivating greenhouse vegetables for 14 years,soil has mild salinization phenomenon and soil total salt content 3.4 g/kg,equivalent to 6.35 times of the open field salt content. Consideration should be given deep tillage,covering and irrigation drainage salinity and other measures to control soil salinization.关键词
渭河上游/设施栽培/土壤盐渍化/影响/武山县Key words
Wei River upstream/Greenhouse cultivation/Soil salinization/Effect/Wushan county分类
农业科技引用本文复制引用
俄胜哲,黄涛,袁洁,姚嘉斌,袁金华,杨东明,郭永杰..渭河上游长期设施种植对土壤盐渍化及硝态氮含量的影响[J].甘肃农业科技,2015,(8):19-22,4.基金项目
国家科技支撑计划课题（2012BAD05B06）；酒钢集团吉瑞再生资源开发有限责任公司项目“酒钢固废农业资源化利用技术研究”；甘肃新民生物科技有限公司项目“果蔬专用骨粉有机肥的研制与应用” （）
