Hierarchical Study on Nutrient Contents of Macroelements and Fertilization Measures in Orchard Soil in Yecheng County, Xinjiang

【Objective】 This paper aims to study the nutrient content and classification of abundant elements in orchard soil in Yecheng County, Xinjiang and put forward reasonable fertilization suggestions.【Method】Based on 782 soil samples data in Yecheng County orchard: five nutrient indexes, including hydrolysis nitrogen, effective phosphorus, rapidly-available potassium, total nitrogen and organic matter, the variation coefficient of soil nutrient was analyzed, and according to soil classification standard and soil status, the soil nutrients were classified.【Result】The nutrient variation coefficient of soil in Yecheng County orchards was within the range of 20.86% and 69.08%, and all nutrients were of medium variability. Soil organic matter, total nitrogen and rapidly-available potassium content were low, while effective phosphorus content was at medium or low levels, and content of hydrolyzed nitrogen was at medium high level.【Conclusion】The nutrient level of a large amount of elements in orchard soil of Yecheng County is generally low, so it is suggested that use of organic fertilizer should be taken seriously. At the same time, it is necessary to ensure sufficient and reasonable application of NPK fertilizer, especially application of phosphorus and potassium fertilizer to guarantee high quality and yield of crops in the season.