|Table of Contents|

Conditioner Combined With Microbial Agents for the Remediation of Continuous Cropping Soil and Yield of Brassica chinensis L.

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年20
Page:
84-91
Research Field:
Publishing date:

Info

Title:
Conditioner Combined With Microbial Agents for the Remediation of Continuous Cropping Soil and Yield of Brassica chinensis L.
Author(s):
WANG Yilian1; YANG Kai1; CHEN Kai1; ZHAO Zhongjuan1; HUANG Peng2; LI Jishun1
(1.Ecology Institute of Shandong Academy of Sciences,Qilu University of Technology (Shandong Academy of Sciences)/Shandong Province Key Laboratory of Applied Microbiology,Jinan,Shandong 250103；2.Weihai Yifeng Agricultural Science and Technology Co.Ltd.,Weihai,Shandong 264200)
Keywords:
conditioner; Trichoderma spp.; Bacillus atrophicus; continuous cropping obstacle; soil remediation
PACS:
-
DOI:
10.11937/bfyy.20221234
Abstract:
Taking ‘Heiyewuyueman Vegetables’ edible rape as test material,a plot experiment was carried out to study the effects of conditioner and microbial agent on soil physical and chemical properties,enzyme activities and yield of rape,the aim of this study was to explore the mitigation effect of complex remediation on soil continuous cropping obstacles and in order to provide reference for the safety of leaf vegetables production.The results showed that the dosage of 7 500 kg·hm-2conditioner could effectively regulate the pH of rape continuous cropping soil and improve the extremely acidic soil (pH4.50) to neutral.Meanwhile,the soil conductivity was decreased,the content of available phosphorus was increased,but alkali-hydrolyzed nitrogen and available potassium decreased.In addition,the contents of Ca2+,Na+,Mg2+,Cl- and HCO-3 in soil were increased,the contents of K+,SO2-4 and NO-3 were decreased,and the soil saccharase,nitrate reductase,catalase and cellulose activities were increased.The addition of microbial agents was beneficial to the recycling of soil organic matter and total nitrogen,total phosphorus and total potassium in rape continuous cropping,and the yield of rape was increased to varying degrees,with the yield increasing rate ranging from 8.40% to 33.59%.Compared with the control,Trichoderma LTR-2 significantly reduced NO-3 content in soil and increased the yield of small rape,the contribution rate of fungus was 4.57%,and the agronomic utilization rate was 13.34 kg·kg-1.The mechanism of composite remediation was that soil conditioner adjusted soil pH,microbial agent LTR-2 reduced NO-3 content in soil,improved soil enzyme activity and recycling of organic matter,total nitrogen,total phosphorus and total potassium to improve the growth environment of rapeseed and increase yield.

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Last Update: 2022-12-22