旱作苹果园深沟施肥效益分析 Ⅱ.土壤养分  

Benifit Evaluation on Deep—ditch Manuring Method in Arid Farming Apple Orochard Ⅱ.on Soil Nutrlent Condition

作　　者：李向民[1] 许春霞[1] 苏陕民 王云芳[1] 韦斯明 

机构地区：[1]陕西省中国科学院西北植物研究所,陕西杨陵712100

出　　处：《水土保持通报》1993年第5期49-53,共5页Bulletin of Soil and Water Conservation

摘　　要：旱作苹果园深沟集中施肥的方法具有改善根区养分状况的作用,使土壤pH值降低,有机质和全氮的分解利用加快,特别是磷肥肥效显著提高,在根区形成了一个土壤肥库。该文还提出了在苹果生产上应用的具体建议。In this paper,method of deep-ditch manuring in arid farming apple orchard was evaluated. Deep-ditch manur-ing method possessed the action improving nutrient condition around root system. The soil pH was reduced. The de-composition and the utilization of soil nitrogon and organic matter were accelerated. Particularly,efficiency of phos-phate fertilization was improved remarkablely. A so-called fertilizer reservoir around root system was formed. Final-ly,some suggestions were recommended for fruit production.

关 键 词：土壤养分 苹果园 旱作 施肥 

分 类 号：S661.106.2[农业科学—果树学]