Analysis And Evaluation Of Nutrient Status Of Apple Orchard Soil In Zhengning County

Apple industry is the mainstay industry of Zhengning County focus on building, fruitindustry revenue is the main source of income for most of the county farmers to get rich, thisresearch carries on the analysis and evaluation of soil nutrients in apple orchard in ZhengningCounty, aimed at understanding the orchard soil fertility status, put forward the improvementdirection of orchard soil fertility, and provide reference for improvement and sustainabledevelopment of apple industry in for a period of productivity in Zhengning county appleorchard regulation. The following results have been obtained through analysis and evaluationof the county in60apple orchard soil samples:1. Apple orchard soil nutrient analysis showed that organic matter is low, orchard, totalnitrogen, available N; available Zn, available Fe at medium level and uneven distribution;Available Zn and available Fe content level in the lower level of trace elements; Availablecopper and manganese content level in the medium level; and all P, total K and slowlyavailable potassium content in upper level. Therefore, a reasonable increase in the amount ofapplication of available Zn and available Fe, total nitrogen, available nitrogen is the maindirection of the apple orchard in Zhengning County nutrient management in the future.2.Apple orchard soil nutrient variation showed that the coefficient of variation degree,available P, available Zn is relatively large. The coefficient of variation reflects the spatialvariability of nutrients, available Zn, available phosphorus and other nutrient indexes highercoefficient of variation, and shows that the nutrient in the spatial distribution is not balanced,the spatial difference of fertility level. This may be due to the daily field managementmeasures, especially related to fertilization and fertilizer type.3.Analysis of the rationality of sampling soil fertility evaluation show that, to estimatethe soil fertility conditions in the research area is reasonably by60the number of samples inthis paper. It controls the sampling cost and ensure the sampling accuracy, and can meet therequirements of relative error of90%confidence level of15%for the number of samples.4. Evaluation of soil fertility for the single factor show that, the study area of organicmatter, available Fe and Zn is the influencing factor limiting the level of soil fertility, so at thetime of fertilization, priority should be given to application methods of organic matter,available Fe and Zn and the dosage of them. 5. Soil fertility evaluation results show that FQI and IFI on soil fertility quality indexwere0.5847and0.5076.The results shows, Zhengning County orchard soil fertility overall inthe middle level.