Changes in soil acidity and organic carbon in a sandy typic hapludalf after medium-term pig-slurry and deep-litter application

Brunetto, Gustavo; Comin, Jucinei José; Schmitt, Djalma Eugênio; Guardini, Renato; Mezzari, Célito Pescador; Oliveira, Bruno L.; Moraes, Marcel Pires de; Gatiboni, Luciano Colpo; Lovato, Paulo Emílio; Ceretta, Carlos Alberto

doi:10.1590/s0100-06832012000500026

Cited by 35 publications

(47 citation statements)

References 22 publications

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“…However, this study also found that the pH may decrease or remain unaffected, depending on the chemical functional group, rate of addition, decomposition, and the initial soil pH. The increase in pH in the pasture soil was also previously attributed to animal excreta (Haynes &Williams, 1992;Shand & Coutts, 2006;Brunetto et al, 2012).…”

Section: Resultssupporting

confidence: 62%

Humic Haplustox under different land uses in a high altitude environment in the Agreste region of Pernambuco, Brazil

Araújo

Ribeiro

Corrêa

et al. 2014

Rev. Bras. Ciênc. Solo

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SUMMARYThe Garanhuns Plateau in the Agreste region of the State of Pernambuco, Brazil is characterized by humid climatic conditions due to orographic rains, unlike the surrounding semiarid region. These soils are subjected to intense agricultural use and are extremely important for the regional economy. This study was carried out in the municipality of Brejão in the Agreste region with the aim of assessing changes in humic Haplustox soils subjected to different land uses. Four plots with different vegetation covers (native forest, secondary shrubby vegetation (capoeira), traditional cropping system, and planted pasture) were selected, and samples were taken from a soil profile and four small pits surrounding it at each site. Physical and chemical properties were assessed, including aggregate stability, humic organic fractions, and a microbiological evaluation through determination of basal respiration, microbial biomass carbon, and metabolic quotient. The soils under study showed physical and chemical properties typical of a Haplustox, such as low nutrient content, low cation exchange capacity, and high levels of acidity and Al saturation. The total organic carbon (TOC) contents were high regardless of the type of land use. Aggregates < 2 mm were dominant in all the conditions under study. The TOC content was higher in the soil under capoeira, 43.91 g kg -1 on the surface, while 34.36 and 33.43 g kg -1 of TOC were observed in the first layer of forest and pasture soils, respectively. While the microbial biomass C (MBC) was greater than 700 mg kg -1 in the forest and pasture areas (in the 0-5 cm layer), and 588 mg kg -1 in the soil under capoeira, these numbers were not statistically different. In the cultivated soil area, there was a reduction of around 28 % in TOC and MBC contents. Agricultural activity contributed to degradation of the humic 1338 horizon, as can be seen from a significant decrease in the TOC and changes in the relative distribution of the humic fractions. In contrast, aggregate stability was not altered as a function of the different land uses; the soil under planted pasture and capoeira were similar to the soil under native forest. Humin was the most important humified fraction for C reserves, contributing over 40 % of the TOC in these soils.Index terms: land use, highland soils, humic substances, aggregate stability, microbial biomass C. RESUMO: LATOSSOLOS AMARELOS HÚMICOS SOB DIFERENTES TIPOS DE UTILIZAÇÃO EM UM AMBIENTE ALTIMONTANO NO AGRESTE DE PERNAMBUCOO Planalto de Garanhuns, no Agreste de Pernambuco, destaca-se por apresentar características climáticas privilegiadas, favorecidas pelas chuvas orográficas, distinguindose da região semiárida circundante. Essas áreas mais úmidas são conhecidas como "brejos de altitude" e intensamente utilizadas e importantes para a economia regional. Este trabalho foi desenvolvido no município de Brejão, Agreste de Pernambuco, com o objetivo de identificar alterações nos atributos de Latossolos Amarelos Húmicos, submetidos às diferentes formas de uso do s...

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Section: Resultssupporting

confidence: 62%

Humic Haplustox under different land uses in a high altitude environment in the Agreste region of Pernambuco, Brazil

Araújo

Ribeiro

Corrêa

et al. 2014

Rev. Bras. Ciênc. Solo

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“…Soil pH decreased with successive application of fertilizers, a process enhanced in soils receiving urea or materials containing urine, such as PS, due to the protons release during the oxidation of N; on the other hand, higher carbonate content in DL promotes consumption of H + dissolved in the soil, leading to pH increases (BRUNETTO et al, 2012). In this study, pH of DL treatment was similar to the control soil, with values around 6.0.…”

Section: Resultssupporting

confidence: 47%

Response of soil microbiota to nine-year application of swine manure and urea

et al. 2015

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Manure fertilization is a common practice, but little is known about its impacts on soil microbial activity and organic matter. Aiming to evaluate soil microbial response to nine years of successive applications of swine manure, organic carbon (TOC), total nitrogen (TN), pH, microbial biomass carbon (MBC), basal respiration (BR), metabolic quotient (qCO 2 ), and enzyme (ß-glucosidase, phosphatase, arylsulphatase, and FDA)

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“…Disposal of animal manure usually involves aerobic composting and anaerobic fermentation [2]. Pig slurry (PS) is primarily used as fertilizer in agricultural production to provide nutrients such as nitrogen (N), phosphorus (P), and potassium (K) to crops [3][4][5][6]. Tao et al [7] found that applying PS at 60-120 m 3¨h m´2 instead of chemical fertilizer at 30-60 kg N¨hm´2 during winter, at the panicle formation stage, could meet the high nitrogen demand utilization efficiency of wheat.…”

Section: Introductionmentioning

confidence: 99%

Effects of Pig Slurry as Basal and Panicle Fertilizer on Trace Element Content and Grain Quality in Direct-Seeding Rice

Huang

Yang

Wei³

et al. 2016

Sustainability

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Direct-seeding rice has grown in popularity in recent years and is widespread in China. This study focused on the effects of pig slurry (PS) on grain quality and safety in direct-seeding rice. Application of more than 210 m 3¨h m´2 increased rice yield and dry matter accumulation, compared with conventional chemical fertilizer treatment (CK2). At the heading and maturing stage, a high dosage of PS (T6, T8 and T9 treatments) promoted uptake of Pb, Cu, Zn, Fe and Mn by rice plants and grain, but retarded uptake of Cr, Co and Ni, indicating an ability to alleviate toxicity of some heavy metals. Compared with CK2, PS alleviated the transfer of Pb, Cr, Co, Ni and Cu from straw to grain, but enhanced the transport of Zn, Fe and Mn. Although PS application slightly diminished the processing quality, including brown rice, milled rice and head milled rice, it significantly decreased the amylose content, optimized the starch profile, and improved the overall quality. The results confirmed the feasibility and safety of PS application to direct-seeding rice, and determined that PS basal and panicle fertilizer could increase yield and improve the rice quality when applied between 210 and 240 m 3¨h m´2.

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Changes in soil acidity and organic carbon in a sandy typic hapludalf after medium-term pig-slurry and deep-litter application

Cited by 35 publications

References 22 publications

Humic Haplustox under different land uses in a high altitude environment in the Agreste region of Pernambuco, Brazil

Humic Haplustox under different land uses in a high altitude environment in the Agreste region of Pernambuco, Brazil

Response of soil microbiota to nine-year application of swine manure and urea

Effects of Pig Slurry as Basal and Panicle Fertilizer on Trace Element Content and Grain Quality in Direct-Seeding Rice

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