植物营养与肥料学报Issue(2)：380-388,9.DOI:10.11674/zwyf.2014.0214
高温处理与添加物料对蚓粪基质培育辣椒壮苗的影响
Effect of high-temperature sterilization and materials addition of vermicompost-formulated substrate on capsicum seedling development
摘要
Abstract
Vermicompost has been proved to have a beneficial effect on vegetable seedling development by many previous studies and can be used as a potential substitute for peat in nursery substrate production .An experiment was conducted to study the effects of high-temperature sterilization and materials addition of vermicompost-formulated substrate on the contents of biologically active substances and capsicum seedling development , and thus to provide a scientific basis for industrial production and effectiveness evaluation of vermicompost -formulated substrate .The vermicompost , obtained through earthworm digestion of cow manure , was sterilized with high-temperature (120℃) and used to formulate nursery substrate with the addition of vermiculite and urea , the growth parameters of capsicum seedlings and the contents of biologically active substances ( e.g.GA3 and IAA) in the substrate were measured under greenhouse and laboratory conditions .The results show that the GA 3 content in vermicompost under the high temperature sterilization is increased , and the active organic matters are degraded into derivatives which have the similar atomic group and are more polarized and water soluble .The vermicompost-formulated substrate and the high-temperature sterilization processing improve many growth parameters of capsicum seedlings including stem diameter , plant height , leaf expansion , number of leaves , root diameter , root length , root surface area, root volume, number of root tips, fresh/dry weight and strong seedling index , and reduce the chlorophyll content of capsicum seedlings .Based the data obtained in this study , the optimized formulation of nursery substrate for capsicum seedling development is:high-temperature sterilized vermicompost +vermiculite (4 vermicompost∶1 vermiculite, v∶v) +urea (0.50 kg/m3).关键词
辣椒幼苗/蚓粪基质/高温灭菌/生产工艺Key words
capsicum seedling/vermicompost-formulated substrate/high-temperature sterilization/processing technique分类
农业科技引用本文复制引用
赵海涛,车玲,姜薇,朱燕红,邱良祝,单玉华,封克..高温处理与添加物料对蚓粪基质培育辣椒壮苗的影响[J].植物营养与肥料学报,2014,(2):380-388,9.基金项目
国家自然科学基金（31000939）资助；国家公益性农业行业科研专项（201103004）资助；江苏省科技支撑计划（ BE2012432、BN2012039）资助；江苏省高校自然科学研究项目（12KJB210005）资助。 （）
