化肥作为蚯蚓饲料添加剂对蚯蚓生长及蚓粪肥效的影响  

The effects of chemical fertilizers as additives on the growth of earthworm and the utility of the dung of earthworm

作　　者：刘军[1] 贾继文[1] 纪洋[1] 鲍雪莲[1] 赵磊[2] 

机构地区：[1]山东农业大学资源与环境学院,山东泰安271018 [2]山东农业大学生命科学学院,山东泰安271018

出　　处：《中国土壤与肥料》2008年第3期70-73,共4页Soil and Fertilizer Sciences in China

基　　金：山东农业大学大学生研究训练(SRT)计划项目(0603020);泰安市大学生科技创新引导计划项目(2006D1028)

摘　　要：研究把过磷酸钙、硫酸钾、氯化钾作为蚯蚓的饲料添加剂,对蚯蚓生长及蚓粪肥效的影响。试验显示过磷酸钙、硫酸钾、氯化钾都可以作为蚯蚓的饲料添加剂。其中在蚯蚓生存、繁殖和蚓粪肥效这三方面考核上,过磷酸钙添加量都以0.75 mg.kg-1(以P2O5计)效果最好;硫酸钾也是以0.75 mg.kg-1(以K2O计)效果最好;而氯化钾则以0.50 mg.kg-1(以K2O计)效果最好。但添加量过多都会对蚯蚓产生毒害,当过磷酸钙添加量达到2.0 mg.kg-1,硫酸钾添加量达到2.0 mg.kg-1或氯化钾达到0.75 mg.kg-1时,蚯蚓存活量或繁殖量为负值(相对于对照而言)。对于氯化钾而言,2.0 mg.kg-1是蚯蚓的致死量。蚯蚓生长好的蚓粪可以促进菠菜早发芽,提高发芽率。This thesis analyzed the effects of three chemical fertilizers - Ca （H2PO4）2, K2SO4, KCl-functioning as additives on the growth of earthworm and the utility of the dung of earthworm. The trial in this thesis manifested that the three fertihzers cotdd function as additives. According to the study of the growth and breeding of earthworm and the utihty of the dung, a generate conclusion was made： 0.75 g·kg^-1 （P2O5） of Ca （H2PO4）2 was the best added amount, which the best effects on earthworm; 0.75 g·kg^-1 （K2O） of K2SO4 was the best added amount as well; 0.50 g·kg^-1 （K2O） of KCl was the best effects on earthworm. But the overuse of additive was harmftd to earthworm. For instance, the amount over 2.0 g·kg^-1 of Ca （H2PO4）2, 2.0 g·kg^-1 of K2SO4 and 0.75 g·kg^-1 of KCl were all inducing the amount of survive and breeding of earthworm. As for KCl, 2.0 g·kg^-1 was the maximums amount that earthworm cotdd bear. The dung of the well - growing earthworms cotdd able to advance the germinating ability of spinach, and at the meantime improve its germination percentage.

关 键 词：过磷酸钙 硫酸钾 氯化钾 饲料添加剂 蚯蚓生长 蚓粪肥效 

分 类 号：S899.8[农业科学—特种经济动物饲养]