Changes in a Rhodic Hapludox under no-tillage and urban waste compost in the northwest of Rio Grande do Sul, Brazil

Moraes, Moacir Tuzzin de; Silva, Vanderlei Rodrigues da; Cherubin, Maurício Roberto; Carlesso, Reimar; Debiasi, Henrique; Levien, Renato

doi:10.1590/s0100-06832014000400028

Cited by 4 publications

(3 citation statements)

References 24 publications

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“…Overall, macro-aggregation stability was high regardless of the yielding zone for both sites (Figure 2). These results are typically reported in studies conducted in weathered Brazilian soils (Madari et al, 2005;Moraes et al, 2014;Cherubin et al, 2015), being associated primarily with mineralogical composition dominated by Fe and Al oxides and 1:1 minerals present in these soils (Silva and Mielniczuk, 1997;Six et al, 2000b). Despite that, large macro-aggregate fractions (>4.76 mm) were highly sensitive indicators to detect zones with different yield potentials, agreeing to reported values by O'Brien and Jastrow (2013).…”

Section: Soil Physical Propertiessupporting

confidence: 88%

Soil physical and hydraulic changes in different yielding zones under no-tillage in Brazil

Santi¹,

Damian²,

Cherubin³

et al. 2016

Afr. J. Agric. Res.

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Soil physical and structural degradation may influence crop productivity over time in long-term notillage system areas. A field study was conducted at two sites, Palmeira das Missões and Não-Me-Toque, in southern Brazil to quantify soil physical/hydraulic and structural changes in zones with different yield potentials. The sites have been managed under no-tillage system without soil disturbance for more than 10 years. Soils were classified as Oxisols (Hapludox). Each site was divided into three zones with low, medium and high yield potentials based on overlapping of yield maps obtained from harvesters with precision agriculture tools. Within each yielding zone soil samples were collected to determine bulk density, porosity and aggregate stability. In addition, water infiltration rate and initial time for starting surface runoff were measured using a sprinkler infiltrometer (Cornell Sprinkler infiltrometer). Our findings showed that soils under low-yielding zones presented higher bulk density, lower macro-aggregate stability and water infiltration rate as well as shorter time for starting surface runoff compared to high-yielding zones. Therefore, these results suggest that soil physical and structural degradations have induced crop yield losses under long-term no-tillage areas. Macroaggregate stability (>4.76 mm) and water infiltration rate were efficient parameters for distinguishing yielding zones in Oxisols managed under long-term no-tillage system in southern Brazil.

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Section: Soil Physical Propertiessupporting

confidence: 88%

Soil physical and hydraulic changes in different yielding zones under no-tillage in Brazil

Santi¹,

Damian²,

Cherubin³

et al. 2016

Afr. J. Agric. Res.

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“…The organic matter concentration in the 0-0.2 m soil layer increased up to the estimated rate of 38 Mg ha -1 of urban waste compost, and, under this condition, the value would be 1.5 times greater than that of the control treatment (Figure 2c). A linear increase in the organic C concentration and, consequently, in the organic matter, in the 0-0.1 m soil layer, in a no-tillage system, after the application of up to 75 m 3 ha -1 of urban waste compost for two consecutive years, was reported by Moraes et al (2014).…”

Section: Resultsmentioning

confidence: 94%

Soil chemical properties and nutrients in maize fertilized with urban waste compost1

Mantovani

Spadon

2017

Pesqui. Agropecu. Trop.

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Urban waste compost has a potential to be used as an organic fertilizer in agriculture, but field studies are required to define the recommendable rates for crops. This study aimed at evaluating the effect of fertilization with urban waste compost on the soil chemical properties, yield, nutrient and heavy metal contents, in maize leaves and grains. The field experiment was carried out in a randomized complete block design, with seven treatments and four replications. The treatments consisted of six urban waste compost doses (0 Mg ha-1, 5 Mg ha-1, 10 Mg ha-1, 20 Mg ha-1, 30 Mg ha-1 and 40 Mg ha-1), applied in the planting furrow, plus an additional control treatment, with NPK mineral fertilization and no waste compost application. Fertilization with up to 40 Mg ha-1 of urban waste compost improves soil fertility. Fertilization with urban waste compost increases grain yield and the N, P and K contents in leaf tissue and maize grains, without inducing plant contamination with heavy metals. The application of 30 Mg ha-1 of urban waste compost can replace mineral fertilization in maize cultivation.

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“…O uso agrícola de resíduos compostados tem sido recomendado em virtude de proporcionar benefícios agronômicos, como elevação do pH do solo, redução da acidez potencial e aumento na disponibilidade de macronutrientes (ABREU JÚNIOR;MURAOKA;OLIVEIRA, 2001;KROB et al, 2011;LIMA et al, 2011;MORAES et al, 2014), além de representar um benefício de ordem social, devido à disposição final menos impactante no ambiente.…”

Section: Introductionunclassified

Potencial De Contaminação Do Solo Após Processo De Compostagem Em Pátio Não Impermeabilizado

Lima¹,

Fia²,

Ribeiro³

et al. 2017

Reveng

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Esse estudo teve como objetivo analisar a lixiviação no perfil do solo a 0,20 e 0,50 m de profundidade de elementos químicos (nitrato, sódio, potássio e fósforo) contidos no percolado das leiras de compostagem de resíduos proveniente de restaurante universitário. O estudo foi conduzido nas dependências da Universidade Federal de Lavras (UFLA). A montagem das pilhas de compostagem, foram com base na relação C/N dos materiais (resíduos resultantes das refeições do restaurante universitário da UFLA, lodo de estação de tratamento de esgoto, serragem/maravalha e capim-colonião (Panicum maximum Jacq cv Colonião). Foram realizados quatro tratamentos: T1 (capim + Resíduo do RU + água); T2 (capim + Resíduo do RU + Lodo + água); T3 (Serragem/maravalha + Resíduo do RU + água) e T4 (Serragem/maravalha + Resíduo do RU + Lodo + água). Após 120 dias, ocorreu aumento das concentrações de sódio no solo sob os tratamentos T1, T2, T3 e T4 devido à presença do resíduo do RU em todas as pilhas. As concentrações de potássio obtiveram maiores valores em T1 e T2 a 0,20 m, devido a presença do capim. Não se observou aumento de nitrato a 0,20 m, após 120 dias. No entanto em T2 e T4, foram observados elevados valores a 0,50 m, devido a presença do lodo na composição dos tratamentos. Devido à lixiviação de nitrato para camadas mais profundas, faz-se necessária a impermeabilização do solo, afim de evitar a contaminação do lençol freático.

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Changes in a Rhodic Hapludox under no-tillage and urban waste compost in the northwest of Rio Grande do Sul, Brazil

Cited by 4 publications

References 24 publications

Soil physical and hydraulic changes in different yielding zones under no-tillage in Brazil

Soil physical and hydraulic changes in different yielding zones under no-tillage in Brazil

Soil chemical properties and nutrients in maize fertilized with urban waste compost1

Potencial De Contaminação Do Solo Após Processo De Compostagem Em Pátio Não Impermeabilizado

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