Abstract:

In order to solve the problem of soil saline-alkaline obstacle in Yellow River irrigation area of Ningxia, improve saline-alkaline obstacle soil quality, and increase land productivity, the application effect of BGA soil conditioner on saline-alkaline soil and crops was studied and evaluated through field plot experiment. The results showed that compared with no fertilizer BGA soil conditioner improved the physical and chemical properties of saline-alkaline obstacle soil, promoted the growth of oil sunflower, rice and Chinese wolfberry, increased significantly the yield of three crops, improved the quality of oil sunflower and rice. Compared with balanced fertilization BGA soil conditioner improved the physical and chemical properties of saline-alkaline obstacle soil, promoted the growth of oil sunflower and rice, increased significantly the yield of three crops, improved the quality of oil sunflower. It was feasible to apply BGA soil conditioner to improve saline-alkaline obstacle soil if the production cost of BGA soil conditioner could be reduced effectively and BGA soil conditioner could be combined with chemical fertilizers, and it was valuable to further research and develop BGA soil conditioner.