Study on Conservation Tillage Remediation Techniques for Degerated Soil

Enhancing the ability of soil water storage and preservation is the most economic and effective way to develop dryland farming, for it can increase water availability and soil organic matter and improve soil structure. Based on Fuyu and Laolai agricultural bases affiliated to Shenyang Military Regions, sub-soiling tillage was studied. Compared with unsubsoiling treatments, subsoiling tillage broke the plough hard pan and presented an obvious drought-resistant advantage. Soil water content in 0~20 cm increased 3.47%~4.03% and the yield increased 4.82%~8.54%. Compared with other ridge tilling treatments, horizontal seed dense planting raised soil water content by 5.45%~6.76% and the yield by 12.7%. Straw mulching tillage raised soil water content in 0~20 cm by 20.5%, and soil organic matter content by 3.98%.