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作 者:陈传信 张永强[1] 薛丽华[1] 雷钧杰[1] 陈兴武[1] 刘云霄 刘新艳 夏麦丁·阿巴斯 赛力汗·赛[1] CHEN Chuan-xin;ZHANG Yong-qiang;XUE Li-hua;LEI Jun-jie;CHEN Xing-wu;LIU Yun-xiao;LIU Xin-yan;Xiamaiding Abasi;Sailihan Sai(Institute of Grain Crops, Xinjiang Academy of Agricultural Science, Urumqi 830091, China;Center of Spreading Agriculture Techniques of Xinyuan County, Xinyuan 835800, China;College of Pratacultural and Environmental Science, Xingjian Agriculture University, Urumqi 830052, China)
机构地区:[1]新疆农业科学院粮食作物研究所,新疆乌鲁木齐830091 [2]新源县农业技术推广中心,新疆新源县8358OO [3]新疆农业大学草业与环境科学学院,新疆乌鲁木齐830052
出 处:《土壤通报》2019年第2期304-309,共6页Chinese Journal of Soil Science
基 金:农业部公益性行业项目“旱地合理耕层构建技术指标研究”(201503116)、研究任务“新疆河谷平原栗钙土区旱地合理耕层构建技术指标及集成示范”(201503116-15)资助
摘 要:以伊犁河谷栗钙土区雨养麦田为研究对象,采取田间调查、取样和实验室测定的方法,研究伊犁河谷不同产量水平栗钙土土壤物理指标变化特征,为该地区麦田土壤物理性质的改善和耕层构建提供理论支撑。结果表明:不同产量麦田土壤容重、紧实度从0~10 cm土层到20~40 cm土层均呈现增加的趋势;土壤总孔隙度、水稳性团聚体含量变化趋势刚好与土壤容重、紧实度相反,即0~10 cm> 10~20 cm> 20~40 cm。高产田土壤容重、土壤总孔隙度、紧实度、土壤三相比R值、水稳性团聚体各项指标均优于中、低产田。因此,通过土壤培肥、改进耕作措施改善土壤物理性质十分必要。The variation characteristics of soil physical indices of castanozem with different yield levels in the Ili river valley were investigated in order to provide theoretical support for the improvement of soil physical properties and the construction of topsoil in this area. The soil bulk density and compactness of wheat fields with different yields were increased from 0-10 cm to 20-40 cm layers. The changes in soil total porosity and water-stable aggregate proportion were opposite to those in soil bulk density and compactness, and they decreased in the order of 0-10 cm> 10-20 cm > 20-40 cm. Soil bulk density, total porosity, compactness, soil three-phase R ratio and water-stable aggregates in the high-yield fields were better than those in the medium-and low-yield fields. The physical indices at20-40 cm soil layer were inferior to those at 0-10 cm and 10-20 cm soil layers. Therefore, it is necessary to improve soil physical properties by using the measures of soil fertilization and improvement of tillage.
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