混合改良剂改善园林废弃物堆肥基质品质提高育苗效果

为改善堆肥基质品质，促进园林废弃物资源化利用，针对堆肥产品高盐碱性质，以竹酢液、麦饭石2种物质为混合改良剂配施于园林废弃物堆肥基质中，以种子萌发、幼苗生长以及改良后基质pH值、电导率为评价指标，以期筛选出适宜园林废弃物堆肥基质的最优改良配比。结果表明，添加竹酢液、麦饭石混合改良剂的处理对降低基质pH值、电导率有显著作用，下降幅度分别为pH值：1.15～1.20、电导率：1839～2076μS/cm；施加改良剂可有效提高种子发芽率、发芽势、发芽指数、活力指数；改良剂的施用促进幼苗根的生长发育，使植株叶片叶绿素含量升高，从而导致根质量、根长、株高的增高；将改良后基质之间各指标进行比较，基质施加稀释...

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Bibliographic Details
Published in农业工程学报 Vol. 30; no. 18; pp. 198 - 204
Main Author 胡亚利 孙向阳 龚小强 田赟 张璐
Format Journal Article
LanguageChinese
Published 北京林业大学林学院，教育部水土保持与荒漠化防治重点实验室，北京 100083 2014
Subjects
pH值
品质调控
堆肥
废弃物
电导率
竹酢液
麦饭石
composting
品质调控
pH value
电导率
wastes
quality control
pH值
废弃物
麦饭石
bamboo vinegar
medical stone
堆肥
竹酢液
electrical conductivity
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ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2014.18.025

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Summary:为改善堆肥基质品质，促进园林废弃物资源化利用，针对堆肥产品高盐碱性质，以竹酢液、麦饭石2种物质为混合改良剂配施于园林废弃物堆肥基质中，以种子萌发、幼苗生长以及改良后基质pH值、电导率为评价指标，以期筛选出适宜园林废弃物堆肥基质的最优改良配比。结果表明，添加竹酢液、麦饭石混合改良剂的处理对降低基质pH值、电导率有显著作用，下降幅度分别为pH值：1.15～1.20、电导率：1839～2076μS/cm；施加改良剂可有效提高种子发芽率、发芽势、发芽指数、活力指数；改良剂的施用促进幼苗根的生长发育，使植株叶片叶绿素含量升高，从而导致根质量、根长、株高的增高；将改良后基质之间各指标进行比较，基质施加稀释1000倍竹酢液500mL/kg＋麦饭石40g/kg复合配比的改良剂效果较好，研究结果将促进中国园林绿化废弃物用作基质栽培的资源化利用。
Bibliography:11-2047/S
Hu Yali, Sun Xiangyang, Gong Xiaoqiang, Tian Yun, Zhang Lu （Key Laboratory of Soil and Water Conservation and Desertification Combation, Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China）
wastes;composting;quality control;medical stone;bamboo vinegar;pH value;electrical conductivity
Large amount micromolecule organic matters and saline ions was produced during the composting from green wastes, leading to low pH value and high electrical conductivity （EC）, and so on. These problems will hurt the seedling in the course of cultivation.In order to increase the effective use of green waste and improve the quality of growing substrate, 2 kinds of ameliorants, including bamboo vinegar （the dilution ratio of 500 or 1 000, the addition content of 500 mL/g ） and medical stone （the addition content of 20, 40, 80 g/kg）, were applied into green waste composting. Seed germination parameters, seedling growth, substrate pH value and EC, were measured as screening indexes to
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.18.025