Phosphorus requirements of microbial biomass in a regosol and an andosol

Lukito, Hasta Pratopo; Kouno, Kenji; Ando, Tadao

doi:10.1016/s0038-0717(98)00011-x

Cited by 35 publications

(23 citation statements)

References 33 publications

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“…In addition, organic P fractions tend to increase in systems with high levels of P, above that required by plants (Aguiar et al 2013;Couto et al 2015;Ye et al 2015). They may be immobilized on the microbial biomass if there are supply sources of C (Lukito et al 1998;Heuck et al 2015).…”

Section: Resultsmentioning

confidence: 99%

Phosphorus fractions in soil with a long history of organic waste and mineral fertilizer addition

et al. 2017

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Applications for long periods of organic animal waste as a source of nutrients to crops can contaminate the soil and the surface and subsurface waters. This study aimed to evaluate how the utilization of organic waste, after successive applications, affects P fractions in the soil and consequently environmental contamination. deep bedding and NPK fertilizer for eight years (urea + triple superphosphate + potassium chloride) provided accumulations of P fractions in the soil that were above the necessary for a proper nutrition to plants considering the available P fractions (AER + organic NaHCO 3 + inorganic NaHCO 3 ) in the soil. In addition, they showed that the use of swine deep bedding, followed by pig slurry, means higher levels of available P fractions in the soil. In this sense, the establishment of a dosage of organic waste to meet the nitrogen need of crops is not an environmentally appropriate parameter. It may cause P accumulation in the soil, increased absorption ability of plants and soil support, contributing to environmental contamination.

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Section: Resultsmentioning

confidence: 99%

Phosphorus fractions in soil with a long history of organic waste and mineral fertilizer addition

et al. 2017

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“…At this significance level, MBC values were different between the treatments IWF and IW, which showed mean values of 415 and 295 µg C g -1 dry soil, respectively. The adequate supply of phosphate fertilizer through fertigation favors microbial biomass growth and, consequently, MBC (Lukito et al, 1998). For Franchini et al (2007), microbiological indicators are highly sensitive to soil use and allow to visualize, in short periods of time, the alterations in soil quality.…”

Section: Ementioning

confidence: 99%

Soil attributes and quality under treated domestic sewage irrigation in sugarcane

Barbosa

Matsura

Santos

et al. 2018

Rev. bras. eng. agríc. ambient.

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A B S T R A C TUsing domestic sewage to irrigate and supply nutrients to plants is a sustainable practice; however, due to the physical and chemical properties of the domestic sewage, soil attributes and quality may be changed with its application. The aim of this study was to evaluate soil quality after two cycles of sugarcane irrigated with treated domestic sewage and surface reservoir water via subsurface drip irrigation, with and without nutritional supplementation by fertigation, and a non-irrigated control with top-dressing fertilization. Soil quality was established by applying the methodology proposed by Karlen & Stott. Physical, chemical and microbiological indicators were selected to compose the basic soil functions used to determine the quality index. Application of treated domestic sewage with fertigation increased soil electrical conductivity, Na + content and exchangeable sodium percentage. Reservoir water applications with fertigation increased microbial biomass carbon and reduced the metabolic quotient, besides promoting significant effects on soil acidification indicators in comparison to reservoir water irrigation without fertigation. Despite the alteration of some soil attributes, no significant changes in the soil quality index were observed among the treatments.Atributos e qualidade do solo irrigado com esgoto doméstico tratado em cultivo de cana-de-açúcar R E S U M O O uso de esgoto doméstico para irrigação e suprimento nutricional de plantas é prática sustentável; entretanto, devido às propriedades físico-químicas do esgoto doméstico os atributos e a qualidade do solo podem ser alterados. Assim, o estudo objetivou avaliar os atributos e a qualidade do solo após dois ciclos de cana-de-açúcar irrigada com esgoto doméstico tratado e água de reservatório, com e sem fertigação complementar, e testemunha não irrigada. A qualidade do solo foi estabelecida com a aplicação da metodologia proposta por Karlen & Stott. Foram selecionados indicadores físicos, químicos e microbiológicos para compor as funções básicas do solo adotadas no índice de qualidade. A aplicação de esgoto doméstico tratado com fertigação elevou a condutividade elétrica do extrato saturado, o teor de Na + e a porcentagem de sódio trocável. O tratamento com água do reservatório e fertigação, elevou o carbono da biomassa microbiana e reduziu o quociente metabólico, além de promover efeitos significativos nos indicadores de acidificação do solo em comparação ao tratamento sem fertigação. Apesar das alterações de alguns atributos do solo, não foi constatado efeitos significativos no índice de qualidade do solo entre os tratamentos.

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“…This soil is widely distributed in the Chugoku district of Japan (Lukito et al 1998;Chowdhury et al 1999) and is amended with chemical phosphate fertilizer in excess of crop requirements, because of its very low P levels. Application of P in excess of crop requirement leads to an accumulation in the plough layer of soil.…”

Section: Introductionmentioning

confidence: 99%

Compost amendment enhances population and composition of phosphate solubilizing bacteria and improves phosphorus availability in granitic regosols

Wickramatilake

Munehiro

Nagaoka

et al. 2011

Soil Science and Plant Nutrition

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This study was conducted to investigate the relationship between available phosphorus (P) in granitic regosols and the population and composition of phosphate solubilizing bacteria (PSB) enhanced by compost amendments. Enrichment of soil with rock phosphate (RP) or no enrichment was combined with poultry manure (PM), cattle manure (CM), sewage sludge (SS), or P-adjusted sawdust (PSD) compost amendments at a rate equivalent to 5 mg P kg À1 soil, or without compost amendment. Soil was enriched with RP at 0.25 or 0.5 g kg À1 soil in the pot experiment and 0.5 g kg À1 soil in the incubation experiment. The amended soils were used to grow African millet (Eleusine coracana Gaertn, cv. Yukijirushi) for 30 days in Wagner's pots (200 cm 2 ). Plant P uptake in RP-enriched soil at 0.25 g RP kg À1 soil was 2-3-fold greater with compost addition than without compost. The results of the incubation experiment showed that compost amendments significantly enhanced microbial biomass P and population density of PSB, which showed significant positive correlation with the available P in soil. The dominant isolates of PSB in all the compost treatments were closest to Burkholderia fungorum. The treatment-specific isolates of PSB with the type of compost amendment were closely related to Burkholderia phytofirmans in PM treatment, Burkholderia caledonica or Arthrobacter ramosus in SS treatment and Burkholderia phenazinium in PSD treatment. The enhanced available P in RP-enriched treatments could be related to specific isolates of PSB in each compost treatment.

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Phosphorus requirements of microbial biomass in a regosol and an andosol

Cited by 35 publications

References 33 publications

Phosphorus fractions in soil with a long history of organic waste and mineral fertilizer addition

Phosphorus fractions in soil with a long history of organic waste and mineral fertilizer addition

Soil attributes and quality under treated domestic sewage irrigation in sugarcane

Compost amendment enhances population and composition of phosphate solubilizing bacteria and improves phosphorus availability in granitic regosols

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