Effects of Organic-Inorganic Composite Materials on Red Soil Acidification in Dryland and the Yield of Pakchoi
To study the improvement effects of organic-inorganic composite materials on acidified red soil in dryland,we applied organic-inorganic composite materials(crude fish meal and silica petrochemical powder mixed in a weight ratio of 7:3)in the acidified red soil.Furthermore,we planted two consecutive seasons of pakchoi and compared the yield of pakchoi between different treatments.The results showed that the organic-inorganic composite materials improved the physical and chemical properties of red soil,increasing the soil pH by 5.37%and 8.27%respectively in the two seasons,with a comprehensive increase of 0.34.In addition,the organic-inorganic composite materials increased the yield of pakchoi in the two seasons by 25.66%and 262.10%,respectively.Furthermore,the organic-inorganic composite materials increased the organic matter content in red soil by 30.97%on average in the two seasons,and they increased the nitrogen,phosphorus,and potassium content in the soil before sowing and after harvest in the two seasons.Comprehensively,the organic-inorganic composite materials demonstrate a significant improvement effect on red soil in dryland by increasing the soil pH and modulating the soil nutrient structure,thus boosting the productivity of red soil in dryland.
organic-inorganic composite materialsred soil in drylandphysical and chemical properties of soilpakchoi
万方数据
维普
