Atividade de urease no solo com feijoeiro influenciada pela cobertura vegetal e sistemas de plantio

Lanna, Anna Cristina; Silveira, Pedro Marques da; Silva, Mozaniel Batista da; Ferraresi, Tatiana Maris; Kliemann, Huberto José

doi:10.1590/s0100-06832010000600018

Cited by 28 publications

(16 citation statements)

References 8 publications

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“…The enzyme URE is responsible for catalyzing the hydrolysis of urea to ammonia. Therefore, URE activity indicates the soil potential for transforming organic nitrogen into mineral nitrogen (Lanna et al 2010). Thus, the reduction in URE activity results in the reduction of mineral nitrogen availability in the soil, as evidenced by the reduction of N-NH 4 found in this study and also observed by others (Wang et al 2010;Zhang et al 2016).…”

Section: Discussionsupporting

confidence: 85%

Effects of Tetracyclines on Enzymatic Activity and Soil Nutrient Availability

Kessler

Sampaio

Prado

et al. 2020

J Soil Sci Plant Nutr

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The objective of this study was to evaluate the influence of tetracyclines associated with swine wastewater on the enzymatic activity of soil over time, in relation to the biogeochemical cycle of the nutrients during two seasons of the year. The experiment was carried out in soil-containing pots that received two successive applications of swine wastewater treatments, in the summer and autumn seasons, corresponding to two experimental periods. The swine wastewater was applied in doses of 0.2 and 0.3 L, with or without tetracycline, chlortetracycline, and doxycycline. Soil samples were collected at 2, 4, 8, 15, 30, 45, and 75 days after treatment application to determine the activities of the enzymes dehydrogenase, β-glucosidase, acid phosphatase, and urease. During both experimental periods, there was an increase in the activities of all enzymes in the presence of swine wastewater. However, these activities decreased in the presence of the applied antibiotics. The observation of enzyme activity over time facilitated construction of longitudinal predictive models, which described the activity of enzymes over time. Our findings indicate that swine wastewater treatments led to a reduction in the bioavailability of nutrients, thereby reducing soil quality and fertility.

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Section: Discussionsupporting

confidence: 85%

Effects of Tetracyclines on Enzymatic Activity and Soil Nutrient Availability

Kessler

Sampaio

Prado

et al. 2020

J Soil Sci Plant Nutr

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“…Urease is an extracellular enzyme produced by soil microorganisms and is responsible for the hydrolysis of urea to ammonium, bicarbonate, and hydroxyls. This ammonium can be absorbed by plants, which generally has a preference for this form at the beginning of their development (Lanna et al, 2010). Most of the Bacilus collection of this study was able to produce urease.…”

Section: Bacillus Sp Isolates Plant Growth-promoting Mechanisms In Vmentioning

confidence: 82%

Isolates of Bacillus sp. from garlic: effect on corn development and plant growth-promoting mechanisms

Balbinot¹,

Rodrigues²,

ReginaBotelho³

2020

Revista Brasileira De Ciência Do Solo

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Corn and garlic are important crops to Curitibanos region (state of Santa Catarina-Brazil), often planted in alternate cropping seasons. Production costs are high, especially due to N fertilizer, since they are highly demanding in N. In addition to reducing economic costs, the search for environmentally sustainable technologies has stimulated the study of interactions between plants and growth-promoting microorganisms. Rhizobacteria, e.g., Bacillus sp., have been presenting as growth-promoting microorganisms. Five isolates of garlic rhizosphere from 27 individuals of the Plant Growth Promoting Microorganisms group collection were tested on corn under field conditions, comparing to two levels of nitrogen fertilization: 120 and 60 kg ha-1. The Bacillus collection was also evaluated in vitro for phosphate solubilization, production of IAA (Indole Acetic Acid), extracellular enzymes, and inhibition of Sclerotium cepivorum. For plant height and stalk diameter, the inoculation of the EB16 isolate showed similar results to the fertilization with 120 and 60 kg ha-1 of N in corn. Both EB16 and EB02 isolates increased corn ear diameter and the yield was similar to that observed in the treatment with 60 kg ha-1 of N, indicating their potential as growth-promoters. All strains of the collection produced IAA, and most of them solubilized calcium phosphate and produced lipases and urease. Forty-eight percent of the isolates inhibited S. cepivorum. The EB01, EB15, EB17, and EB27 were positive for three of the four mechanisms analyzed. During these evaluations, it was observed that EB02 and EB16 produced equivalent amounts of IAA, suggesting that more than one growth-promoting mechanism is involved in the efficiency of corn development induction.

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“…Therefore, if there is no organic matter with quality, even with the low availability of P for the plants, the enzyme will not be activated because there will be no energy source to carry out its activities. Another factor that explains these results is that usually, areas with legume present large amounts of organic carbon, as well as organic phosphorus contained in the soil microbial biomass and low availability of inorganic phosphorus (LANNA et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

Soil Microbiological Activity and Productivity of Maize Fodder With Legumes and Manure Doses

et al. 2018

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Maize is an important cereal and it is widely consumed in the world, both as food for humans and animals. Nitrogen (N) is a nutrient required in large quantities by maize, but unfortunately, soils are limited in meeting this need. Nodulating legumes can serve as a source of Nitrogen, because they are symbiotically associated with bacteria capable of fixing atmospheric N. Another important source of this nutrient is cattle manure, which is widely used in agriculture. The objective of the present study was to evaluate the effect of using legumes and cattle manure on the production as well as the microbial and biochemical quality of the soil used for maize cultivation. The experiment was conducted using a randomized complete block design, in a sub-subdivided plot scheme [(2x4) +2], two leguminous plants (pigeon pea and macassar bean), four doses of cattle manure (0, 20, 40 and 60 t ha-1) and two controls; one with mineral fertilization and the other cultivated without the use of fertilizers. Treatment using a manure dose of 60t ha-1 and pigeon pea legume, recorded higher dry mass production per plant. The increase in manure doses was directly proportional to the length and weight of the cobs for the two legumes. The enzymatic activities were affected by the different doses and legumes, with greater results being recorded at the 60 t ha-1 dose with the macassar legume. The use of legumes with manure improved maize production as well as the microbiological and biochemical quality of soils.

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Atividade de urease no solo com feijoeiro influenciada pela cobertura vegetal e sistemas de plantio

Cited by 28 publications

References 8 publications

Effects of Tetracyclines on Enzymatic Activity and Soil Nutrient Availability

Effects of Tetracyclines on Enzymatic Activity and Soil Nutrient Availability

Isolates of Bacillus sp. from garlic: effect on corn development and plant growth-promoting mechanisms

Soil Microbiological Activity and Productivity of Maize Fodder With Legumes and Manure Doses

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