Research Progress on Vegetable Soil Microbial Obstacles in P

  本文关键词：土壤微生物学，由笔耕文化传播整理发布。

摘要：

单一种植（连作和简单轮作）和水肥高投入是我国设施蔬菜种植中的普遍现象，，这使得设施菜田土壤极易出现微生物多样性下降、病原菌增多和寄生线虫为害等土壤微生物学障碍问题。土壤微生物学障碍已对我国设施蔬菜种植体系土壤的可持续利用构成了很大的威胁。土壤微生物是影响植物生长、进化进程和生产力的重要因素之一。目前我国有关设施菜田土壤微生物学障碍的研究已取得了显著的进展。但是，多数研究侧重于人为管理对土壤微生物学因子影响的一般性变化的了解，缺乏对土壤生态服务功能变化的深入研究。为此，本文阐述了国内外土壤微生物学障碍研究，并在此基础上概述了土壤微生物-作物互作的生态学效应，分析了设施菜田土壤微生物学障碍研究的关键点。此外，本文简要介绍了目前我国设施菜田土壤微生物学障碍调控的主要生态措施，并对未来深入揭示设施菜田土壤微生物学障碍的潜在成因的关键切入点提出了建议。

Abstract： 

Simple cropping(including continuous cropping and simple rotation)and excessive water and fertilizer input are 2 common phenomenon in Chinese protected vegetable cultivation.This phenomenon results in the problems of soil biological obstacles:as reduction of microbial diversity of protected vegetable soil,increasing of microbial pathogens, and damage of plant-parasitic nematodes, etc.Soil microbial obstacles have greatly threatened the sustainable utilization of soils in protected vegetable production systems in China.Soil microbe is one of the important factors that influence the plant growth,evolutionary process and productivity.Currently studies on vegetable soil microbial obstacles in protected cropping system have made significant progress.However,most of the study efforts are mainly focused on the general changes of soil microbial communities responding to human management,and thorough studies on change of soil ecological service function are needed to carry out. Therefore,this paper reviewed the internal and external studies on soil microbial obstacles, summarized the ecological effect of soil microbe-crop interaction and analyzed the key point for studying vegetable soil microbial obstacles in protected cropping systems.Besides,this paper briefly introduced the major ecological measures adopted in China to control these obstacles.It also provided suggestions for revealing potential causes of these obstacles in the future.

  本文关键词：土壤微生物学，由笔耕文化传播整理发布。