Microbial Activity in a Soil With Cover Crops in Succession With Maize in a No-Tillage System

Simon, Cátia Aparecida; Cordeiro, Meire Silvestrini; Lima, Sebastião Ferreira de; Brasil, Marivaine da Silva; David, Carlos; Secco, Vinícius Andrade

doi:10.37856/bja.v92i2.3210

Cited by 3 publications

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“…In this work, it was observed that the sorghum C/N ratio (34/1) was preponderant, thereby evidencing that the soil organic matter decomposition process and the soil microbial community are influenced by the C/N ratio. Furthermore, similar results for the β-glucosidase enzymatic activity in an area neighboring this work were described by Simon et al (2017), where the authors describe that the lower βglucosidase enzymatic activity was found in the area cultivated with sorghum in succession to the corn crop; however, it can be observed that the amount of zinc for the area published by Simon et al (2017) and the studied area are very high (15.5 mg/dm 3 ), negatively affecting the enzymatic activity and soil microbial community (Peixoto et al, 2010). The β-glucosidase enzyme correlated positively with the soil MBC and the C-CO 2 , possibly indicating that the greater the population and soil basal respiration, the greater the βglucosidase enzyme activity in the soil (Table 4).…”

Section: Discussionsupporting

confidence: 85%

Cover crops as modifying agents of microbiological soil attribute

et al. 2019

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Carbon sources are exuded and deposited by different soil cover plants. They promote growth, diversity and enhancement of soil microbial community functionality, due to organic matter degradation by participating in major biochemical cycles and the availability of inorganic nutrients to plants. In this way, it is necessary to evaluate the microbiological attributes of the soil after cover cropping, which allows for surveying and monitoring the soil quality, thereby enabling rapid responses in relation to managing changes in the soil. Thus, the objective of this study was to evaluate soil microbiological attributes and soybean grain yield under the influence of different cover crops. The experiment was installed in the year 2015. The treatments were constituted by the following vegetation coverages: sorghum, millet, Urochloa ruziziensis, forage turnip, Urochloa brizantha, crambe and fallow area, with cover crops sown in succession to the soybean crop for three years prior to the date of installation of the experiment .The evaluated parameters were soil microbial biomass carbon, soil basal respiration, metabolic quotient, enzymatic activity of acid phosphatase and soil β-glucosidase, plant phytomass produced by the different cover crops and soybean yield in each area. The use of cover crops promotes higher soybean yield. The microbial activity and its efficiency were modulated according to the type of cover crop used. Soil under sorghum mulch provided lower microbial efficiency. The U. ruziziensis plant residues remain for less time on the soil. The results show that U. brizantha may be the most suitable for its use as a soil cover plant, providing improvements in its attributes.

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Section: Discussionsupporting

confidence: 85%

Cover crops as modifying agents of microbiological soil attribute

et al. 2019

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“…As respostas de controle dos fungos fitopatogênicos no solo associados ao processo de biofumigação direciona-se as substâncias produzida pelas fontes de matéria orgânica adicionadas ao solo. Diante do avanço tecnológico, estudos que descreveram os processos enzimáticos no solo baseando-se na dinâmica de decomposição e aumento da comunidade microbiana de biocontrole são imprescindíveis visando conhecer seus processos decorrentes (SIMON et al, 2017).…”

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A Pseudocercospora SPECIES ON LEAVES OF Schinus terebinthifolius RADDI IN THE STATE OF RIO DE JANEIRO, BRAZIL

Andrade¹,

Araújo²,

Almeida³

et al. 2020

Aspectos Fitossanitários Da Agricultura

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Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição 4.0 Internacional (CC BY 4.0).O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.

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Soil enzymatic activity and wheat grain yield under cover crop systems

Gerlach

Santi

Fornari

et al. 2023

Pesqui. Agropecu. Trop.

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For years, the impacts of using cover crops in productive systems have been measured by their relation with soil chemical and physical characteristics. Consequently, the effects on the soil microbiological characteristics have been little explored. This research aimed to measure the short-term effects of cover crop systems on the enzymatic activity of arylsulfatase and beta-glycosidase, as well as the wheat grain yield. Thirty-five cover crop systems (18 single and 17 intercropped) were implemented, with 3 replications of the following variables for each treatment: enzymatic activity of arylsulfatase and beta-glycosidase, soil organic matter and sulfur contents, and wheat grain yield. The data were submitted to descriptive analysis, multivariate cluster analysis by dendrograms for the single and intercropped plant systems, and t-test for independent samples between the average scores of each group in the dendrograms. Independently of the crop system, there were short-term effects on the enzymatic activity and grain yield. Plants from the same botanic family presented different effects among them. Therefore, in the short-term, cover crops affect the enzymatic activity, and plants that present a higher enzymatic activity do not necessarily result in higher grain yields.

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Microbial Activity in a Soil With Cover Crops in Succession With Maize in a No-Tillage System

Cited by 3 publications

References 21 publications

Cover crops as modifying agents of microbiological soil attribute

Cover crops as modifying agents of microbiological soil attribute

A Pseudocercospora SPECIES ON LEAVES OF Schinus terebinthifolius RADDI IN THE STATE OF RIO DE JANEIRO, BRAZIL

Soil enzymatic activity and wheat grain yield under cover crop systems

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