苹果梨园土壤养分变化规律调查研究

目的]分析延边地区苹果梨园土壤养分季节及月份变化规律,为苹果梨园合理施肥提供理论依据。方法]通过常规方法对整个延边地区苹果梨园土壤pH、全量养分及速效养分含量进行测定并进行分析。结果]延边地区苹果梨园土壤全量养分变化不大,土壤有机质与速效养分变化较大;土壤有机质表现前期高,随后迅速下降,以后逐渐上升;土壤速效磷、速效钾含量前期高,以后逐渐下降,至采果前略有上升,后又呈下降趋势;碱解氮前期低,以后逐渐上升后又呈下降趋势。结论]苹果梨园应重视有机肥的施入,有机肥和基肥应在春季一次性施足,夏季进行追肥。

Investigation on Change Law of Soil Nutrient in Apple-pear Garden

Objective] The study aimed to analyze the change law of soil nutrient in different seasons and months in apple-pear garden in Yanbian area and provide the theoretical basis for the rational fertilization in apple-pear garden.Method] The soil pH,total nutrient and available nutrients in the apple-pear garden in all Yanbian area were determined and analyzed through the conventional method.Result] The results showed that the total nutrient in the soil in apple-pear garden in all Yanbian area had a little ch...