Abstract: The pig manure and mushroom residue were decomposed by earthworm,and mixed matrixes with different formulations(T1—T8,T1 for comparison)were designed with peat and vermiculite.By measuring chlorophyll content,root system activity,malondialdehyde(MDA)content,proline content,stem diameter,root-shoot ratio and seedling index of cucumber seedlings,effects of optimized wormcast on the growth and physiological characteristics of cucumber seedlings were studied,for the purpose of providing technical references for the development of new matrix for vegetable seedlings and recycling of waste resources.The results showed that,the physicochemical properties of wormcast mixed with substrate(T1—T8) all accorded with the requirement of vegetable seedling substrate,the bulk density was 0.21—0.32 g/cm³,the total porosity was between 61.04% and 75.35%,the pH value was between 5.81 and 7.42,and the conductivity was all lower than 2.5 mS/cm;organic matter content showed an upward trend with the increasement of wormcast proportion,and total nitrogen,total phosphorus,and total potassium contents showed a downward trend. According to the morphological and physiological indexes of seedlings,the treatment T5[ wormcast∶vermiculite∶peat( volume ratio)=1∶1∶1] was the best.Compared with the treatment T1[wormcast ∶vermiculite∶peat(volume ratio)=0∶1∶2],the plant height,stem diameter,root length,root-shoot ratio,and seedling index were significantly increased by 30.9%,8.1%,54.7%,26.7%,30.8%,and root system activity,chlorophyll content,MDA content and proline content were significantly increased by 40.1%,66.1%,68.4%,30.1%.

Key words: Wormcast, Mixed matrix, Mixture ratio, Cucumber seedling, Physiological characteristic

摘要： 将猪粪+蘑菇渣经蚯蚓消解腐熟后，与草炭、蛭石组成了不同配方的混配基质（T1—T8，T1为对照），通过测定黄瓜幼苗叶绿素含量、根系活力、丙二醛（MDA）含量、脯氨酸含量以及茎粗、根冠比和壮苗指数，研究了优化处理的蚯蚓粪配方基质对黄瓜幼苗生长及生理特性的影响，以期为蔬菜育苗新型基质开发、废弃物资源循环利用提供参考。结果表明，蚯蚓粪混配基质（T1—T8）的理化性质均符合蔬菜育苗基质要求，容重0.22～0.32 g/cm³,总孔隙度61.04%～75.35%，pH值5.81～7.42，电导率值均低于2.5 mS/cm；有机质含量随着蚯蚓粪添加比例增加呈现上升趋势，全氮、全磷、全钾含量略呈下降趋势。综合幼苗形态及生理指标来看，T5［V(蚯蚓粪)∶V(蛭石)∶V(草炭)=1∶1∶1］处理表现最优，与T1［V(蚯蚓粪)∶V(蛭石)∶V(草炭)=0∶1∶2］处理相比，其株高、茎粗、根长、根冠比、壮苗指数分别显著提高了30.9%、8.1%、54.7%、26.7%、30.8%；根系活力、叶绿素含量、MDA含量、脯氨酸含量分别显著提高了40.1%、66.1%\68.4%、30.1%。

关键词: 蚯蚓粪, 混配基质, 配比, 黄瓜幼苗, 生理特性