Integrated crop–livestock systems in lowlands increase the availability of nutrients to irrigated rice

Carlos, Filipe Selau; Denardin, Luiz Gustavo de Oliveira; Martins, Amanda Posselt; Anghinoni, Ibanor; Carvalho, Paulo César de Faccio; Rossi, Iuri; Buchain, Marina Patel; Cereza, Tiago Viegas; Carmona, Felipe de Campos; Camargo, Flávio Anastácio de Oliveira

doi:10.1002/ldr.3653

Cited by 19 publications

(32 citation statements)

References 37 publications

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“…The β-glucosidase, FDA, acid phosphatase, and urease degrade compounds that are easy to decompose like simple sugars, proteins, fats, organic phosphates, and small nitrogenous molecules (Carlos et al, 2020). These enzymes do not have large abilities to degrade larger complex stable compounds such as humic substances, which constitute relatively high proportions of the total soil organic carbon.…”

Section: Extracellular Enzymesmentioning

confidence: 99%

“…No-tillage generally increases the carbon content of the soil (Denardin et al, 2019), which controls energy production and cell synthesis of microorganisms, while tillage accelerates desiccation, affecting moisture that is a crucial factor for microorganisms (Carlos et al, 2020).…”

Section: Soil Bacterial Composition Diversity and Richnessmentioning

confidence: 99%

“…participating in soil biochemistry (Martins et al, 2017), nutrient availability, and extracellular enzyme activity (Carlos et al, 2020). In the PG system, the soil is flooded before it is sown with germinated seeds.…”

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confidence: 99%

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confidence: 99%

“…Microorganisms have great importance in the mineralization of organic compounds in the soil and release of nutrients for plant nutrition (Carlos et al, 2016(Carlos et al, , 2020. Extracellular enzyme (EE) activity is affected by the cultivation system, plant residues, and soil depth (Carlos et al, 2020;Martins et al, 2017). For these reasons, several studies have been performed to investigate the effects of NT on microbial biomass and EE activity in Brazilian soils (Carlos et al, 2020;Martins et al, 2017).…”

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confidence: 99%

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A long‐term no‐tillage system can increase enzymatic activity and maintain bacterial richness in paddy fields

et al. 2021

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Soil management systems cause many changes in the microenvironment that directly affect activity and diversity of microorganisms. In lowlands, there is a gap in relation to the adoption of no-tillage (zero-tillage) and the impact it has on soil under cultivation of irrigated rice. This study, an in-field experiment, evaluated the microbial enzymatic activity and diversity in an Entisol cultivated with rice under different managements for 22 years. The experiment started in the 1994/95 growing season, and the treatments were no-tillage, conventional, and pregerminated management systems. After 22 years, the data obtained on most of the evaluation dates indicated that no-tillage increased microbial biomass carbon (+45%), microbial biomass nitrogen (+54%), and basal respiration (+54%). No-tillage compared to management under soil tillage (pregerminated and conventional tillage) increased the activity of β-glucosidase (+43%), acid phosphatase (+68%), diacetate fluorescein (+34%), and urease (+96%).The enzyme activity was correlated with the soil organic carbon content and particulate fraction. Despite the relatively high enzyme activity with no-tillage, bacterial richness was maintained in this soil management system. The Proteobacteria phylum has a greater abundance in the NT (43.2%) in relation to the CT (32.3%). Bacteroidetes phylum has a lower abundance in the NT (10.0%) in relation to the CT (15.2%). The Verrucomicrobia phylum has a greater abundance in NT (8.9%) in relation to CT (4.9%). The results suggest that no-tillage is an important management tool in the recovery of irrigated rice areas whose soil has undergone microbiological degradation.

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Section: Extracellular Enzymesmentioning

confidence: 99%

Section: Soil Bacterial Composition Diversity and Richnessmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

mentioning

confidence: 99%

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A long‐term no‐tillage system can increase enzymatic activity and maintain bacterial richness in paddy fields

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Chemical attributes of percolate from degraded sand soil irrigated with treated industrial wastewater

Carlos

Schaffer

Tedesco

et al. 2021

Environmental Quality Mgmt

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Applying treated industrial tannery wastewater to soil can be an important practice for its disposal and aid in the recovery of degraded soils. This study aimed to evaluate the chemical attributes of the percolate of degraded soil irrigated with treated industrial wastewater (TIW). The experiment was carried out in a greenhouse, using soil‐filled polyvinyl chloride columns. The treatments consisted of TIW at increasing rates (0%, 25%, 50%, 75%, and 100%) and organomineral and organic fertilization. Irrigation with treated wastewater on soil degraded by clay extraction increased mineral nitrogen, biochemical oxygen demand (BOD), electrical conductivity, sodium, and sodium adsorption ratio in percolate under maize cultivation. Irrigation with TIW increased mineral nitrogen and BOD in the percolate by 34% and 25%, respectively, relative to the control treatment (plain water). Concentrations of total nitrogen and BOD must be less than 100 and 65 mg L–1, respectively, to minimize the potential contamination of water bodies. The degraded soil and maize (Zea mays L.) cultivation reduced the total mineral nitrogen and BOD in the percolate by 96% and 84%, respectively. The sodium adsorption ratio had a high removal efficiency of 79% of the percolate when compared to TIW.

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Silicon dynamics through the lens of soil-plant-animal interactions: perspectives for agricultural practices

2021

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Integrated crop–livestock systems in lowlands increase the availability of nutrients to irrigated rice

Cited by 19 publications

References 37 publications

A long‐term no‐tillage system can increase enzymatic activity and maintain bacterial richness in paddy fields

A long‐term no‐tillage system can increase enzymatic activity and maintain bacterial richness in paddy fields

Chemical attributes of percolate from degraded sand soil irrigated with treated industrial wastewater

Silicon dynamics through the lens of soil-plant-animal interactions: perspectives for agricultural practices

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