有机肥对库尔勒香梨园土壤养分与综合肥力指数的影响

Effects of Organic Fertilizer on Soil Nutrient and Integrated Fertility Index of Korla Fragrant Pear Orchard

为掌握有机肥在库尔勒香梨生产中的应用效果,采用化肥配施不同有机肥(黑炭和羊粪)的田间调控试验,研究不同有机肥对库尔勒香梨园土壤养分与综合肥力指数的影响。结果表明:与不施有机肥的CK处理相比,施用有机肥能有效改变果园土壤颗粒组成,改善土壤物理性质,提高土壤有机质及速效养分含量,显著促进果园土壤综合肥力提高。施用黑炭、羊粪27 000 kg/hm2的处理效果较为显著,其中施用黑炭27 000 kg/hm2对提高土壤有机质含量和改善土壤物理性质效果较好,施用羊粪27 000 kg/hm2对提高土壤碱解氮、有效磷和速效钾的含量以及土壤综合肥力指数效果较好。

In order to master the application effect of organic fertilizer in production of Korla fragrant pear,the regulatory trials of different organic fertilizers（ black carbon and sheep excrement） with applying chemical fertilizers in field were conduct,and the effects of different organic fertilizer treatments on soil nutrients and integrated fertility index of Korla fragrant pear orchard were studied. The results showed that：Compared with the non-organic fertilizer treatment CK,applying organic fertilizer could change the composition of the soil particles in Korla fragrant pear orchard effectively,improve soil physical properties,increase contents of soil organic matter and available nutrients and promote the integrated fertility index of soil in orchard. The effects of treatments with applying 27 000 kg / hm2 black carbon and sheep excrement were more remarkable,the effect of treatment with applying 27 000 kg / hm2 black carbon was more significant to increase contents of soil organic matter and improve soil physical properties,and the effect of treatment with applying 27 000 kg / hm2 sheep excrement was more significant to increase contents of soil alkaline hydrolysis N,available phosphorus,available potassium and integrated fertility index of soil.