Produtividade de soja e milho após coberturas de inverno e descompactação mecânica do solo

Debiasi, Henrique; Levien, Renato; Trein, Carlos Ricardo; Conte, Osmar; Kamimura, Karina Marie

doi:10.1590/s0100-204x2010000600010

Cited by 44 publications

(42 citation statements)

References 16 publications

(19 reference statements)

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“…According to Collares et al (2006) and Mazurana et al (2011), this action results in reduced soil density and mechanical resistance, and increased macroporosity (Marcolan et al, 2007;Rosa et al, 2008;Nunes et al, 2015), which provides reduction of critical soil density according to Logsdon & Karlen (2004), basic conditions for the proper development and productivity of agricultural crops, as evidenced by Debiasi et al (2010). Veiga et al (2007) explain that soil disturbance at the sowing row decreases soil resistance to penetration up to twelve centimeters when using a hoe furrow opener, and there is no formation of compacted layers with higher resistance to root penetration in the soil.…”

Section: Methodsmentioning

confidence: 99%

Disturbance of Ultisol soil based on interactions between furrow openers and coulters for the no-tillage system

Francetto

Alonço

Brandelero

et al. 2016

Span. j. agric. res.

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The present study evaluated the effect of different associations between coulters and fertilizer furrow openers on soil disturbance, furrow depth and width, according to forward speed. The study was conducted on a farm in Santa Maria (Brazil/RS), in soil classified as sandy loam Ultisol. The experiment consisted of 24 combinations of treatments with three replications in a 2×3×4 factorial experiment. The combinations were formed by the interaction of the factors including: two types of furrow openers (hoe and double-disc), three types of coulters (no-coulter, smooth and offset fluted) and four levels of forward speed (1.11, 1.67, 2.22 and 2.78 m/s). Soil elevation and soil disturbance area profiles were obtained with the use of a micro profilometer, and disturbance values were calculated with the aid of computer software program Auto Cad. The disturbance area was not affected by speed; it was greater when using the hoe opener, and in association with the offset fluted coulter. Speed was inversely proportional to the depth of the furrows made by the hoe opener. Furthermore, the hoe caused the greatest furrow width (0.26 m) in comparison with the double-disc (0.24 m). The use of different coulters associated with furrow openers increased this variable (0.23 m for the no-coulter condition, 0.25 m with smooth and 0.26 m with offset fluted). The use of coulters combined with furrow openers reduces soil swelling, in approximately 8% for the smooth and 20% for the offset fluted.

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Section: Methodsmentioning

confidence: 99%

Disturbance of Ultisol soil based on interactions between furrow openers and coulters for the no-tillage system

Francetto

Alonço

Brandelero

et al. 2016

Span. j. agric. res.

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“…In a study conducted by Debiasi et al (2010), assessing the productivity of soybean and corn after winter cover and decompression mechanical soil, the authors verified that the increased soybean yield was obtained in the treatments which had winter crop, fact that was assigned to the best soil aggregation, resulting from higher soil organic matter levels observed in these treatments, as well as to better physical condition of the surface of the soil.…”

Section: Resistance To Penetrationmentioning

confidence: 87%

Physical properties of a latosol eutrophic red under management systems after different winter crops successful by the soybean crop

Costa¹,

Oliveira²,

Piano³

et al. 2016

Afr. J. Agric. Res.

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The objective was to verify the influence of winter crops under management mechanical (roller knife) and chemical (glyphosate), on soil physical properties and yield of soybeans. The experiment was carried out at the field under randomized block design in tracks scheme. The treatments consisted of four different winter crops (oats IPR 126, wheat BRS Tarumãt crambe FMS Bright and forage radish cultivar common) in tracks A and management different (chemical and mechanical) in bands B. The soil properties (macroporosity, microporosity, total porosity and density) were determined by collecting soil core in layers 0-10 and 10-20 cm depth, penetration resistance was determined with the aid of a penetrometer impact to a depth of 30 cm. The soybean harvest was held on 03/12/13, collecting two lines of the floor area of each plot. The evaluations were carried out after the winter crop management and post-harvest of soybeans. There was no significant difference in the interaction of the factors to the values of the porosity in the layer 0-10 cm of soil. As to the values obtained for the penetration resistance of the soil, it was found that the oat (0.91 MPa) and crambe (1.43 MPa) provided significant differences in the layer 0-5 cm depth, after the cycle of winter crops. Winter crops and different managements not affect soybean yield.

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“…Contudo o sistema de plantio direto possui grandes limitações como a manutenção de palha em superfície do solo, a compactação superficial geralmente posicionada a 0,1-0,2 m de profundidade (DEBIASI et al, 2010;FRANCHINI et al, 2011), e a correção da acidificação em sub -superfície, pois em plantio direto não ocorre o revolvimento do solo. Sabese que o uso do gesso agrícola pode melhorar as condições do subsolo podendo atuar de certa forma como descompactante do solo (RAIJ, 2008), ambiente que geralmente é pouco favorável às raízes.…”

Section: Introductionunclassified

Efeito dos Sistemas Conservacionistas do Solo e Residual do Gesso sobre a Cultura da Soja

Freitas

Mello

Yano

et al. 2016

NATIVA

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RESUMO:O experimento obteve o intuito de estudar as sequencias de manejos conservacionistas do solo sobre os atributos de produção da soja. O estudo foi realizado na área experimental da fazenda de Pesquisa e Extensão pertencente a UNESP, Campus de Ilha Solteira -SP. O delineamento experimental foi o de blocos ao acaso, com quatro sistemas de cultivo: Plantio Direto Contínuo (SPD-SPD) e Alternado (SPD-CM), Cultivo Mínimo Contínuo (CM-CM) e Alternado (CM-SPD) com ou sem o uso de gesso. Foram avaliadas as características agronômicas da soja. As várias formas e métodos dos sistemas conservacionistas do solo junto à gessagem tiveram por finalidade melhorar as características do solo e agronômicas da soja, porém neste trabalho não foi possível identificar um melhor manejo do solo com uso do gesso, mas sim demonstrar que independentemente do sistema utilizado, o gesso proporcionou melhores características físicas e químicas do solo e agronômicas da soja. O sistema de plantio direto contínuo proporcionou os maiores valores para a população inicial e final. O uso do gesso agrícola somente proporcionou maiores valores na massa de 100 grãos. Palavras-chave: gesso agricola, Glycine max (L.), manejo do solo.Effect of soil conservationist systems and gypsum residue on soybean ABSTRACT: This experiment was obtained in the aim of studying the sequences of conservation soil management systems on soybean production attributes. The study was conducted at the experimental farm area of Research and Extension belonging to UNESP, Ilha Solteira -SP. The experimental design was a randomized block, with four farming systems: no tillage Continuous (SPD-SPD) and alternating (SPD-CM), Cultivation Continuous minimum (CM-CM) and alternating (CM-SPD) with or without the use of plaster. were evaluated the Agronomic characteristics of soybean . The various forms and methods of soil conservation systems with use plaster were intended to improve the soil characteristics and agronomic of soybean. But this work was not possible to identify a better soil management with the use of plaster, but yes demontar that regardless of the system used, the plaster provides better physical and chemical characteristics of the soil and soybean agronomic The no tillage system continuous provide the highest values for initial and final population. The use of phosphogypsum provided only values greater the weight of 100 grains.Keywords: agricultural gypsum, Glycine max (L.), soil management.Recebido em março/2016; Aceito em agosto/2016. INTRODUÇÃOOs sistemas de manejo do solo têm por finalidade o preparo da área para a implantação da cultura, este que deve ser feito com condições ideais para o crescimento e desenvolvimento das plantas. Entretanto, os implementos utilizados em solos tropicais baseavam-se em sistemas convencionais e não preconizava a manutenção dos recursos ambientais. A degradação acelerada dos recursos naturais é uma das consequências da utilização intensiva do solo através de manejos denominados convencionais Seki et al., (2010).Os sistemas de prepa...

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Produtividade de soja e milho após coberturas de inverno e descompactação mecânica do solo

Cited by 44 publications

References 16 publications

Disturbance of Ultisol soil based on interactions between furrow openers and coulters for the no-tillage system

Disturbance of Ultisol soil based on interactions between furrow openers and coulters for the no-tillage system

Physical properties of a latosol eutrophic red under management systems after different winter crops successful by the soybean crop

Efeito dos Sistemas Conservacionistas do Solo e Residual do Gesso sobre a Cultura da Soja

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