几种不同组合蚯蚓粪复合有机肥的效果试验

Effects Experiment of Different Compound Wormcast Organic Fertilizer Combination

蚯蚓粪与大量元素肥、微量元素的8个不同复混组合试验表明,蚯蚓粪与无机肥复合能够不同程度提高肥效,蚯蚓粪90%+无机肥10%效果最佳。配合草炭会降低蚯蚓粪效果,草炭含量越高效果越差,含量超过60%效应变负。施用蚯蚓粪含量超过40%的蚯蚓粪复合有机肥,能够明显改善土壤团聚体和水稳性团聚体,施肥量相同的情况下,土壤团聚体和水稳性团聚体含量与施用的蚯蚓粪复合有机肥的蚯蚓粪含量呈正比。

The experiment of 8 different combinations of wormcast with primary nutrient and trace clcalent fertilizer indicated the following results： inorganic fertilizer combined with wonncast in different ratio would increase effects; 90% wormcast combined with 10% inorganic fertilizer is the best. Mixed with turf may lower the effect of wormcast. The more the turf contained, the worse effect, even negative with over 60% tuff content. The compound wormcast organic tertilizer （CWOF） with wormcast content mo,＇e than 40% obviously ameliorated soil water-sustainable aggregates. Content of soil water-sustainable aggregates positively correlated with wormcast content in compound wormcast organic fertilizer.