Microbiological Attributes and Performance of the Bacterial Community in Brazilian Cerrado Soil with Different Cover Crops

被引：1

作者：

de Lima, Sebastiao Ferreira ^{[1
]}

Secco, Vinicius Andrade ^{[1
]}

Simon, Catia Aparecida ^{[2
]}

Miranda Silva, Antonio Marcos ^{[2
]}

Vendruscolo, Eduardo Pradi ^{[3
]}

de Oliveira Andrade, Maria Gabriela ^{[4
]}

Contardi, Lucymara Merquides ^{[5
]}

Leite de Lima, Ana Paula ^{[1
]}

Silvestrini Cordeiro, Meire Aparecida ^{[1
]}

Abreu, Mariele Silva ^{[1
]}

机构：

[1] Univ Fed Mato Grosso do Sul, Campus Chapadao do Sul, BR-79560000 Chapaddo Do Sul, Brazil

[2] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Soil Sci Dept, BR-13418000 Piracicaba, Brazil

[3] Univ Estadual Mato Grosso do Sul, Campus Cassilandia, BR-79540000 Cassilandia, Brazil

[4] State Univ Sao Paulo, Plant Breeding & Prod Dept, BR-18610034 Botucatu, SP, Brazil

[5] State Univ Sao Paulo, Phytotech Food Technol & Socioecon Dept, BR-15385000 Ilha Solteira, Brazil

来源：

SUSTAINABILITY | 2021年 / 13卷 / 15期

关键词：

no-till; microbial activity; organic carbon; soil quality; MICROBIAL BIOMASS; TILLAGE; PLANTS; QUALITY;

D O I：

10.3390/su13158318

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Soil microbiological indicators are essential tools to understand how the management with cover crops interferes in the activity and the soil microbial community. Thus, the objective of the study was to evaluate microbiological attributes and performance of the bacterial community in the soil of the Brazilian Cerrado with different cover crops. The experiment was performed in a randomized block design, evaluating seven cover crops, Sorghum bicolor, Crotalaria ochroleuca, Pennisetum americanum, Panicum miliaceum, Raphanus sativus, Urochloa brizantha, Urochloa ruziziensis, and a fallow area. Cover aerial biomass dry weight (CB), microbial biomass carbon (MBC), basal soil respiration (BR), metabolic quotient (qCO(2)), and abundance and structure of bacterial community based on the rrs 16S rRNA gene were evaluated. In the soil cultivated with S. bicolor there was the highest CB and MBC at the same time as there was less microbial activity (lower BR and qCO(2)). The structure of the bacterial community was more differentiated in soils cultivated with S. bicolor, P. americanum, and C. ochroleuca. The MBC was more associated with cover crops of the Urochloa genus, while BR was positively correlated with S. bicolor. Bacterial abundance was positively correlated with P. miliaceum.

引用

页数：14

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