Applied research of vibrating deeply-loosening tillage technology and biochemical reagents combination for improving soda saline-alkali soil

The integral technology of combining the mechanized vibrating deeply-loosening tillage with biochemical reagents is for studying the new methods to improve soda saline - alkali soil and rapidly restore the grassland biological environment. Based on the land observations and laboratory tests the change trend of soil physical and chemical index before and after improvement the saline-alkali soil has been obtained in this paper. Using the method of soil moisture characteristic index, quantified the water volume of soil reservoir storage in deeply-loosening layer. With the square deviation method, the effect of increase herbage yield in the reclamation area has been analyzed. The results show that the effect of improvement the saline-alkali soil and increase herbage yield are fully obvious by using the integral technology. The conclusion in this paper is that using the technology of mechanized deeply-loosening vibration tillage can improve the soil conditions for forage grass growth and raise the effective utilization ratio of precipitation, and put biochemical reagents can reduce soil salinity in grass root zone, so that the total nitrogen, the total phosphorus and organic contents obviously increased, and then increased the fertility of soil. In 3 to 4 years after improvement, the land in the reclamation area has become a high quality and productivity grassland.