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- Title
功能性微生物菌剂对小麦生长和根际土壤生态的影响.
- Authors
高雁; 张永强; 张志东; 唐琦勇; 楚敏; 欧提库尔·玛合木提; 詹发强; 朱静; 宋素琴; 顾美英
- Abstract
【Objective】 To discuss the effects of microbial agents with different functions on wheat growth and soil quality in the hope of providing reference for the combination of microbial agents and wheat soil improvement, disease control and high yield.【Method】 Four treatments, including sterile water (CK), anti-lodging agent (A), precocious promoting agent (B) and antagonistic and growth promoting agent (C) were set. Through experiments of seed soaking, the effects of different functional microbial agents on the growth and development of wheat, the physicochemical properties of rhizosphere soil and the functional diversity of microbial community were studied by measuring the growth of wheat, the traditional chemical analysis method and biolog microplate method.【Result】 The addition of different functional microbial agents had different effects on the growth of wheat. Compared with CK treatment, culm fresh weight increased by 6.47% in A treatment, and the other two treatments all decreased. Plant height in B treatment significantly increased by 4.78%, and the other two treatments all decreased. Stem diameter increased respectively by 15.07% and 2.74% in A treatment and C treatment, but there was no difference in B treatment. The addition of different functional microbial agents had some effects on the physical and chemical properties of wheat soil. Their pH values were decreased, but the total salt content increased significantly in the three microbial agents. The application of different functional microbial agents promoted soil nutrient content, the content of organic matter and total nitrogen significantly increased. Compared with CK treatment, the contents of organic matter in treatment A, B and C treatments significantly increased by 8.64%, 6.46% and 12.69%, and the contents of total nitrogen significantly increased by 13.54%, 8.30% and 25.16%, respectively. The results of biology showed that the AWCD values of soil microorganisms treated with three different functional microbial agents increased by 15.10%, 1.88% and 13.95%, respectively. Shannon richness index increased by 2.13%, 0.97% and 1.80% respectively, and the utilization degree of different types of carbon sources was significantly different in different bacterial treatments. Principal component analysis showed that the microbial functional diversities of wheat rhizosphere soil were changed by different functional bacterial agents.【Conclusion】 Because of different functional characteristics, microbial agents had different effects on wheat growth and soil microecology, so it is necessary to combine them and complement each other's advantages in order to play their respective advantages.
- Publication
Xinjiang Agricultural Sciences, 2021, Vol 58, Issue 1, p115
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2021.01.014