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用干挖壕沟法研究了深沟施肥农艺措施对旱作苹果树根系的重量、结构和分布范围等的影响。结果表明，与未挖沟的对照相比，深沟施肥后，根系的总重量、总体积和分布深度都大幅度减少，总重量减少了５０％，总体积减小了６０％，分布深度减小了１．８ｍ；但吸收根的总长度增加，吸收根在总根量中所占的比例亦大幅度提高。深沟施肥处理后苹果树根系组成呈大根少、小根多的经济型生长模式，吸收根集中分布于沟区，与微生态因子的剖面最佳分布区在空间上吻合，是一种十分理想的根系结构。
The effects of furrow drench agronomic practices on the weight, structure and distribution of apple tree roots under dry conditions were studied by dry-ditching method. The results showed that after deep furrow fertilization, the total weight, total volume and distribution depth of root system decreased significantly compared with the control without trenching. The total weight decreased by 50% and the total volume decreased by 60% Small 1.8m; but the total length of the root absorption increases, the absorption root in the proportion of the total root volume also increased significantly. After deep furrow fertilization, the root system of apple tree was an economical growth pattern with fewer roots and more small roots. The absorption roots concentrated in the ditch area and was spatially coincident with the best distribution of micro-ecological factors, which was a very ideal Root structure.