摘要
通过在茶树＋橡胶林地内进行了有机肥施用量及蚯蚓投放量对其林地土壤改良效果的研究。结果表明,不同的有机肥（牛粪）施用量＋蚯蚓投放量对其林地土壤的综合改善作用是20 kg蚯蚓＋20 kg牛粪〉10 kg蚯蚓＋20 kg牛粪〉5 kg蚯蚓＋20 kg牛粪〉10 kg蚯蚓＋10 kg牛粪〉10kg蚯蚓＋5 kg牛粪〉20 kg牛粪〉对照;在施用相同数量有机肥牛粪的条件下,投放蚯蚓数量多的处理对茶树＋橡胶林地土壤物理性状改善的效果大于投入数量少的处理,但投放20kg蚯蚓与投放10kg蚯蚓对其林地土壤物理性状改善作用没有明显差别。而在投放相同数量蚯蚓的条件下,则是施用牛粪多的比少的明显。各处理对茶树＋橡胶林地土壤物理性状及化学性质各指标的效果较一致,并且对林地0-20 cm土层及20-40 cm土层的土壤物理性状及化学性质均有改善作用,其改善效果是0-20 cm土层优于20-40 cm土层,但差异不显著。
Experiments were conducted to study the soil improvement effects of organic fertilizer and earthworm input quantities on mixed planting land of tea and rubber trees.The results showed that the soil improvement function of mixed application of organic fertilizer and earthworm decreased in the order of 20 kg earthworm ＋ 20 kg cow dung,10 kg earthworm ＋ 20 kg cow dung,5 kg earthworm ＋ 20 kg cow dung,10 kg earthworm ＋ 10 kg cow dung,10 kg earthworm ＋ 20 kg cow dung,10 kg earthworm ＋ 5 kg cow dung,20 kg cow dung.With the same application amount of cow dung,more earthworm is benefit for the improvement of physical characters of soil,however,there is no significant differences between the earthworm amount of 20 kg and 10 kg.Under the same application amount of earthworm,better effect can be got by increasing the amount of cow dung.The improvement effect of different tested treatments on physical property and chemical characteristics is basically consistent,the improvement function on the soil of 0-20 cm and 20 - 40 cm are all significant,the effect on the soil of 0-20 cm in depth is better than 20-40 cm,however the difference is not significant.
出处
《西部林业科学》
CAS
2010年第2期50-53,共4页
Journal of West China Forestry Science
基金
国家林业局"948"项目"热区退化林地生物有机培肥技术引进"(2005-4-48)部分内容
关键词
有机肥施用量
蚯蚓投放量
茶树+橡胶林地
土壤改良效果
organic fertilizer application amount
earthworm input amount
mixed plantation of tea and rubber tree
soil improvement effect
作者简介
第一作者简介：曾郁珉（1977-），女，湖南祁东人，硕士，助理研究员，主要从事林木培育及生态恢复等研究工作。
