Conservative tillage for soil conservation with stubble in sandstorm area along the Great Wall in North Shaanxi Province of China

【Objective】The study explored one mechanical conservation tillage technical mode of soil and water conservation in the desert area along the Great Wall in North Shaanxi Province.【Method】Based on the agriculture-ecological condition and the cultivation habits in the sandstorm area along the Great Wall in North Shaanxi Province,and the experiences of conservation tillage at home and abroad,one soil conservation technical mode characterized by the stubble-reservation to hold the soil and row-interval no tillage fertilized sowing was promoted in this paper.Tests which compared with traditional tillage were conducted in the sandstorm area of Hengshan County.【Result】Compared with traditional tillage,the new mode could increase crop yield about 480 kg/hm2 with the growth rate 6.27%,increase income about 1 590.5 RMB/hm2,reduce sand discharges about 37%,increase soil moisture contents and decrease irrigation water used increase the content of soil organic matfer.【Conclusion】The new technical mode can prevent wind and hold the soil,improve water storing and moisture preserving ability of soil,soil structure and fertility,and increase income.It is suitable to extend and apply in the desert area along the Great Wall in China.