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通过对衢州市1981—1988年红壤性桔园所取的187组土样的1522项数据统计表明:低丘黄筋泥的pH值、H~+、Al~(3+)和代换酸分别为5.05±0.24、0.17±0.05cmolkg~(-1)、3.90±1.13cmolkg~(-1)和4.25n±1.08cmolkg~(-1);黄泥砂土的pH值为4.57±0.22,其酸度仍较高.土壤pH值与有机质、速效氮、磷、钾的相关关系密切,F值达显著以上水平.土壤活性铝与柑桔果实中的Vc、糖分、柠檬酸的含量呈显著相关.随着土壤活性铝的增大,果实的糖/酸比下降;交换性钙饱和度下降时,果实糖/酸比也下降.本文还提出了浙西桔园红壤的培肥改良措施.
According to 1522 data of 187 groups of soil samples collected from red soil orange orchard in 1981-1988 in Quzhou City, the results showed that pH, H ~ +, Al ~ (3+) and substitutional acid Were 5.05 ± 0.24,0.17 ± 0.05cmolkg -1, 3.90 ± 1.13cmolkg -1 and 4.25n ± 1.08cmolkg -1 respectively. The pH value of yellow mud soil was 4.57 ± 0.22, Soil organic matter, available nitrogen, phosphorus and potassium were closely related, and the F value reached a significant level above.The content of Vc, sugar and citric acid in soil active aluminum was significantly correlated with citrus fruit content Soil active aluminum increased, the fruit sugar / acid ratio decreased; exchangeable calcium saturation decreased, the fruit sugar / acid ratio also decreased.This paper also proposed the improvement of fertilizers in the orange-red soil in western Zhejiang.