Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Soil microbial community, enzyme activity, C and N stocks and soil aggregation as affected by land use and soil depth in a tropical climate region of Brazil

Full text
Sarto, Marcos V. M. [1, 2] ; Borges, Wander L. B. [3] ; Bassegio, Doglas [4] ; Pires, Carlos A. B. [1] ; Rice, Charles W. [1] ; Rosolem, Ciro A. [5]
Total Authors: 6
[1] Kansas State Univ, Dept Agron, Manhattan, KS 66506 - USA
[2] 1712 Claflin Rd, Manhattan, KS 66502 - USA
[3] Agron Inst IAC, Adv Res Ctr Rubber Tree & Agroforestry Syst, Votuporanga, SP - Brazil
[4] Western Parana State Univ, UNIOESTE, BR-85819130 Cascavel, PR - Brazil
[5] Sao Paulo State Univ, UNESP, Av Univ 3780, BR-18610034 Botucatu, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Archives of Microbiology; v. 202, n. 10 AUG 2020.
Web of Science Citations: 1

The impact of agricultural land-use on soil microbial community composition and enzyme activity has not been extensively investigated in Ultisols. We investigated soil health parameters by analyzing phospholipid fatty acids (PLFAs), extracellular enzyme activity, C and N stocks, and soil structure. Four land uses were established in a tropical climate region of Brazil: native Cerrado(savanna), monoculture pasture {[}Urochloa brizantha (Hochst. Ex A. Rich.) R. Webster `Marandu'], an integrated crop-livestock system (ICLS), and maize (Zea mays)-fallow in a no-tillage system. Soil microbial biomass was 40% higher in the native Cerrado than in the monoculture pasture, ICLS, and no-tillage maize. Soil organic carbon was positively correlated with microbial community composition (MB; gram-; AC; AMF; Fungi; F: B ratio) and enzyme activity (bG, AP, NAG). Large macroaggregates were positively correlated with bG, AP, and AMF. In summary, the native Cerrado had a higher level of carbon at the soil surface and greater soil structure with increased microbial biomass, gram+ bacteria, AMF, fungi, and F:B ratio in a tropical region of Brazil. However, bG and AP enzyme activities were lower in the ICLS and no-till maize at the soil surface (0-5 cm) compared to the native Cerrado. The conversion of native Cerrado to agricultural systems shifted the soil microbial community composition, enzyme activity, C and N, and soil structure of this sandy soil of the Brazilian Cerrado. (AU)

FAPESP's process: 14/10656-3 - Eucalyptus contribution for soil organic matter in integrated
Grantee:Marcos Vinicius Mansano Sarto
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 16/14323-4 - Microbial activity in integrated eucalyptus and Urochloa
Grantee:Marcos Vinicius Mansano Sarto
Support type: Scholarships abroad - Research Internship - Doctorate