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为探讨枣园林下养殖对土壤肥力的影响,对林下养鸡和普通栽培管理的枣园土壤肥力指标进行测定,结果表明:林下养鸡的枣园各项指标均高于普通栽培管理的,其中有机质含量高出52.35%、全氮含量高出85.71%、全磷含量高出30.0%、速效钾含量高出175.1%,pH值没有变化,为中性到弱碱性。在所检测的土样中,0~20cm土层的指标均高于枣树毛细根分布较多的20~40cm土层,且测得的各项数值大部分处在分级指标的中等以下。在以后的土壤管理上,要适当增施有机肥并加强土壤的深耕细作。
In order to explore the effect of understory farming on soil fertility, the soil fertility indexes of jujube orchard under chickens and general cultivation and management were measured. The results showed that all indexes of jujube orchard under chickens were higher than those of common cultivation and management , Of which the content of organic matter was 52.35% higher than the total nitrogen content of 85.71% higher than the total phosphorus content of 30.0% higher than the available potassium content of 175.1%, no change in pH, neutral to weakly alkaline. In the soil samples tested, the indexes of 0 ~ 20cm soil layer were higher than those of 20 ~ 40cm soil layer with more root capillary distribution, and most of the measured values were below the middle of the grading index. In the subsequent soil management, it is necessary to properly increase organic fertilizers and to strengthen soil deep plowing.