不同覆盖材料对龙眼园生态环境及产量和品质的影响

摘要

试验研究了不同的树盘覆盖材料对龙眼园的土壤温度、湿度及速效养分和pH值、果实品质和产量的影响.结果表明,覆盖牛粪并养蚯蚓处理和秸秆覆盖处理土壤含水量显著高于其它处理；在温度较高的10月份覆盖生草处理的土壤表层温度较低；在温度较低12月份,秸秆覆盖和覆盖牛粪并养蚯蚓处理的土壤表层温度较高；覆盖牛粪养蚯蚓处理和秸秆覆盖处理显著提高了土壤速效养分含量；覆盖牛粪养蚯蚓处理能显著提高酸性赤红壤的pH值；覆盖牛粪养蚯蚓处理也显著提高了龙眼产量和品质.从综合效应看,龙眼园树盘覆盖牛粪养蚯蚓处理显著好于其他覆盖处理.%Longan trees were taken as study materials to study the effects of different mulching materials on ecological environment and yield and quality of longan orchards.The results indicated that the treatment of cow dung covering with earthworms and straw covering had higher moisture content than the others; clover planting had lower temperature than the others at higher temperatures month; cow dung covering with earthworms and straw covering had higher temperature than the others at lower temperatures month; cow dung covering with earthworms and straw covering had higher available nutrient.The pH of soil could be improved significantly by cow dung covering with earthworms.Compared with CK,cow dung covering with earthworms improved the fruit weight,yield,edible rate,TSS,Vc and soluble sugar content.From the combined effect of the longan tree plate coverage cow dung with earthworms significantly better than the other covering the processing.