Soil microbial properties are improved by the adoption of soil management and conservation practices in no-tillage system

• DOI: 10.36783/18069657rbcs20230022
• Publication Date: 2023-11-28T13:50:40Z
• Authors: Jhonatan Spliethoff; Adriana Knob; Leandro Rampim; Marcelo Marques L...; Cristiano Andre Pott
• Keywords: Conservation Agriculture; Soil Management; Conventional tillage

ABSTRACT No-tillage system (NTS) plays a prominent role in conservation agriculture, however, its benefits can be further improved by adopting complementary soil management and practices, such as using autumnal cover crops, contour seeding, terraces. This study aimed to evaluate how biological activity responds systems. The treatments consisted of three macroplots with an area 11.000 m 2 each, follows: a) Non-Terraced catchment (NTC), cultivated NTS similar most farmers the region, which agricultural operations are carried out direction slope without terraces used; b) Best Management Practices (BMPs) were adopted additional cultivation also machine traffic was transverse direction; c) Terraced (TC), associated mechanical practices erosion control, wide base terrace on level. Soil microbial properties sampled 0.00-0.10 layer evaluated during 2019, 2020, 2021, all shortly after summer crop harvest. Natural inoculum potential arbuscular mycorrhizal fungi (AMF), respirometry, metabolic coefficient, acid phosphatase activity, organic carbon nitrogen biomass assessed. Averages each microbiological compared through confidence intervals (p<0.05). results showed greater for AMF BMPs TC NTC highest values respirometry quotient, releasing 31.7 27.3 % more CO TC, respectively. able retain 13.8 16.5 8.0 8.8 than NTC, Adopting autumn level properties, increase potential, higher levels increment biomass.