Open AccessEffects of Tillage Practices on Soil Fertility in Loess Plateau
Author(s) -
Tao Meng,
Ziqi Sun,
Jie Cheng
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/300/2/022069
Subject(s) - tillage , mulch till , agronomy , environmental science , loess plateau , phosphorus , conventional tillage , minimum tillage , loess , soil fertility , sowing , no till farming , soil science , soil water , chemistry , biology , paleontology , organic chemistry
In order to determine whether there is a threat to soil nutrient content by long-term no-tillage cultivation in loess plateau, a suitable high-yield and high-efficiency tillage technology system is established. This study was conducted in the Changwu Loess Plateau Agro-ecological Experiment Station of the Northwest A&F University in Changwu County, Shaanxi Province. The experimental field for no-tillage cultivation was selected for three consecutive years. In September 2015, no-tillage and tillage were carried out separately before winter wheat planting. And rotary tillage 3 kinds of farming treatment. After harvesting of winter wheat in 2016, the contents of available phosphorus, available potassium in 0∼30 cm soil layer under different tillage methods were analyzed. The results showed that in the 0∼30cm soil layer, the contents of available phosphorus and available potassium in the soil under three tillage methods decreased along the profile. The contents of available phosphorus and available potassium in 0∼10 cm soil layer were significantly higher than that of tillage and rotary tillage (p rotary tillage > no-tillage, and there was no significant difference among the three tillage methods in 10-20cm soil layer.