树皮与污泥堆肥混合基质的性质及其对黑麦草无土草坪的影响  

Properties of the Media Mixed with Bark and Sewage Sludge and Its Effects on Soil-less Lawn of Ryegrass

作　　者：李苏翼 时连辉[1,2] LI Su-yi;SHI Lian-hui(National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer, Tai’an 271018, China;College of Resource and Environment/Shandong Agricultural University, Tai’an 271018, China)

机构地区：[1]土肥资源高效利用国家工程实验室,山东泰安271018 [2]山东农业大学资源与环境学院,山东泰安271018

出　　处：《山东农业大学学报（自然科学版）》2017年第1期13-19,共7页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：2016年山东省重点研发计划:重点产业关键技术(2016CYJS05A02);"十二五"国家科技支撑计划项目(2014BAL04B05)

摘　　要：为解决污泥堆肥基质透气性差、过于紧实等问题,采用树皮堆肥作为调节材料,以不同比例与污泥堆肥进行混合,通过小区试验研究其对黑麦草草坪性状的影响,同时探讨不同树皮堆肥添加量对污泥堆肥基质理化性状的影响。结果表明:黑麦草的出苗率、株高、生长速度、分蘖数以及根系活力均为添加50%树皮堆肥条件下最高,与纯污泥堆肥相比,分别提高了10%、52.5%、31%、61.9%和53.9%;添加树皮堆肥条件下,混合基质的总孔隙度、通气孔隙度、渗透系数分别比对照增加了2.7%~9.1%、2.17~4.40倍和1.84~5.1倍,且随树皮堆肥添加量增多而增大,而混合基质的容重、持水孔隙度、水气比、电导率和养分含量则随树皮堆肥添加比例升高而降低。综合分析表明,添加树皮堆肥能够显著影响污泥堆肥基质的理化性状,其中树皮堆肥添加比例为50%的混合基质对黑麦草根系及地上部生长等性状的效果最佳,可作为黑麦草无土草坪的理想栽培基质。In order to solve the problems of sewage sludge compost’s compaction and poor permeability, the experiment was conducted to study the effect on ryegrass characteristics by using the bark compost as the adjust material and fixing the different amount of bark compost with sewage sludge compost, and explored the impact of different bark compost amount to the physical and chemical properties of sewage sludge. The results showed that the emergence rate, plant height, growth rate,number of tillers and root activity of ryegrass increased by 10%, 52.5%, 31%, 61.9% and 53.9% which were grown at the mixture of 50% bark compost and 50% sewage sludge compost when compared to pure sewage sludge compost. The total porosity, aeration porosity and permeability coefficient were increased by 2.7%~9.1%, 2.17~4.40 times and 1.84~5.1 times inadding bark compost than that of pure sewage sludge compost respectively, while the bulk density, water holding porosity,WAP/AP, EC and nutrient content decreased gradually with the increasing amount of bark compost. The total results indicated that adding bark compost could affect the physical and chemical properties of sewage sludge compost significantly,and the addition amount of 50% bark compost has the best effect on ryegrass roots and aerial growth, and it could be ryegrass soil-less lawn’s ideal growing media.

关 键 词：污泥堆肥 树皮堆肥 理化性状 黑麦草 栽培基质 

分 类 号：S141.4[农业科学—肥料学] S688.4[农业科学—农业基础科学]