Effects of Tillage Methods on Soil Organic Carbon and Total Nitrogen Content in the Loess Plateau

• 作者: Tingting MENG
• 来源期刊: 亚洲农业研究:英文版
• 学科: 农学
• 关键词: LOESS PLATEAU Different TILLAGE methods Organic carbon Total nitrogen Wheat YIELD
• 年，卷（期）: 2020,（2）
• 页码范围: 25-27
• 页数: 3页
• 分类号: S153.6

摘要

In order to determine whether long-term no-tillage operation in the loess plateau threatens soil fertility and crop yield,a suitable high-yield and efficient tillage technology system was established.In the Changwu loess plateau agri-Gecological experiment station of the Northwest A&F University of Changwu County,Shaanxi Province,the no-tillage experimental field for three consecutive years was selected.In September 2015,no-tillage,tillage,and rotary tillage were carried out before winter wheat was sowed.After the harvest of winter wheat in2016,soil organic carbon,total nitrogen and wheat yield in 0-30 cm soil layers under different tillage methods were analyzed.The results showed that the soil organic carbon and total nitrogen contents in the 0-30 cm soil layer decreased along the profile under the three tillage methods.In this study,the soil organic carbon and total nitrogen content in the 0-10 cm soil layer under different tillage methods were no-tillage>rotary tillage>tillage,the actual yield of winter yield in one hectare was tillage>rotary tillage>no-tillage,and there was significant difference in the actual yield of winter wheat only between the no-tillage and tillage.