Functional diversity of soil microbial communities in response to supplementing 50% of the mineral N fertilizer with organic fertilizer in an oat field

作     者：ZHANG Mei-jun JIA Ju-qing LU Hua FENG Mei-chen YANG Wu-de ZHANG Mei-jun;JIA Ju-qing;LU Hua;FENG Mei-chen;YANG Wu-de

作者机构：College of AgricultureShanxi Agricultural UniversityTaigu 030801P.R.China 

出 版 物：《Journal of Integrative Agriculture》 (农业科学学报（英文版）)

年 卷 期：2021年第20卷第8期

页      面：2255-2264页

核心收录：

学科分类：07[理学] 0901[农学-作物学] 0713[理学-生态学] 

基　　金：This research was supported by the Key Research and Development Program of Shanxi Province China(201703D211001-03-01 and 201703D211001-03-03)and the Key Research and Development Program of Shanxi Province China(201903D221061) 

主　　题：organic fertilizer Biolog-Eco soil microbial community carbon source utilization diversity oats 

摘      要：The effects of supplementing 50%of the mineral N fertilizer with organic fertilizer on the metabolism and diversity of soil microbial communities in an oat field were investigated using Biolog-Eco *** experiment consisted of five treatments:no fertilizer(CK),mineral N fertilizer applied at 90 and 45 kg ha^(-1) N in the form of urea(U1 and U2,respectively),and U2 supplemented with organic fertilizer in the form of sheep manure at 90 and 45 kg ha^(-1) N(U2OM1 and U2OM2,respectively).Each treatment had three *** experiment was conducted in 2018 and 2019 in Pinglu District,Shanxi Province,*** carbon source utilization by soil microbial communities,such as amino acids,amines,carbohydrates,carboxylic acids,and polymers,increased when 50%of the mineral N fertilizer was replaced with organic fertilizer in both *** result was accompanied by increased richness,dominance,and evenness of the microbial *** utilization of amino acid,amine,and carboxylic acid carbon sources and community evenness were further improved when the organic fertilizer amount was doubled in both *** analysis indicated that amines and amino acids were the most representative of the total carbon source utilization by the soil microbial communities in both *** highest oat yield was achieved at a total N application rate of 135 kg ha^(-1) in the treatment involving 45 kg ha^(-1) N in the form of urea and 90 kg ha^(-1) N in the form of sheep manure in both *** was concluded that the application of 50%of the conventional rate of mineral N fertilizer supplemented with an appropriate rate of organic fertilizer enhanced both the functional diversity of soil microbial communities and oat *** and amino acid carbon sources may be used as a substitute for total carbon sources for assessing total carbon source utilization by soil microbial communities in oat fields in future studies.