Effects of combined application of organic and chemical fertilizers on the yield of peanut, soil available nutrient and biological properties in the upland red soil in subtropical China

Low yield of peanut production due to low soil fertility, and environmental pollution as a result of disorderly discharge of animal excretion from large-scale animal farms. Some researchers have proposed application of animal excretions as organic manure into farmlands and hold that it a win-win solution to the problems. Based on the above-described findings, it can be concluded that on the condition that equivalent N, P, K nutrients are supplied, the application of fertilizer containing 35% of N in the form of organic manure can not only turn large volumes of animal excretions into organic manure, but also reduce the use of chemical fertilizer and improve the yield, quality and physiological properties of peanut in red soil areas, which means a great augmentation of economic value and social benefit.