Atributos químicos de solo sob produção orgânica influenciados pelo preparo e por plantas de cobertura

Cunha, Eurãimi de Queiroz; Stone, L. F.; Didonet, Agostinho Dirceu; Ferreira, Enderson Petrônio de Brito; Moreira, J. A. A.; Leandro, Wilson Mozena

doi:10.1590/s1415-43662011001000005

Cited by 19 publications

(15 citation statements)

References 17 publications

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“…notillage velvet bean and crotalaria) over three study years. Cunha et al (2011a), studying the influence of different cover crops on soil chemical properties (e.g. crotalaria and pigeon pea), reported no significant differences either, in the soil OM contents (layers 0-0.10 and 0-0.20 m) in two study years.…”

Section: Chemical Propertiesmentioning

confidence: 91%

Chemical and biological properties of phosphorus-fertilized soil under legume and grass cover (Cerrado region, Brazil)

Souza

Silva

Arf

et al. 2013

Rev. Bras. Ciênc. Solo

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SUMMARYThe use of cover crops has been suggested as an effective method to maintain and/or increase the organic matter content, while maintaining and/or enhancing the soil physical, chemical and biological properties. The fertility of Cerrado soils is low and, consequently, phosphorus levels as well. Phosphorus is required at every metabolic stage of the plant, as it plays a role in the processes of protein and energy synthesis and influences the photosynthetic process. This study evaluated the influence of cover crops and phosphorus rates on soil chemical and biological properties after two consecutive years of common bean. The study analyzed an Oxisol in Selvíria (Mato Grosso do Sul, Brazil), in a randomized block, split plot design, in a total of 24 treatments with three replications. The plot treatments consisted of cover crops (millet, pigeon pea, crotalaria, velvet bean, millet + pigeon pea, millet + crotalaria, and millet + velvet bean) and one plot was left fallow. The subplots were represented by phosphorus rates applied as monoammonium phosphate (0, 60 and 90 kg ha -1 P 2 O 5 ). In August 2011, the soil chemical properties were evaluated (pH, organic matter, phosphorus, potential acidity, cation exchange capacity, and base saturation) as well as biological variables (carbon of released CO 2 , microbial carbon, metabolic quotient and microbial quotient). After two years of cover crops in rotation with common bean, the cover crop biomass had not altered the soil chemical properties and barely influenced the microbial activity. The biomass production of millet and crotalaria (monoculture or intercropped) was highest. The biological variables were sensitive and responded to increasing phosphorus rates with increases in microbial carbon and reduction of the metabolic quotient.Index terms: microbial biomass carbon, microbial activity, organic matter, cover plants, Cerrado.( RESUMO: ATRIBUTOS QUÍMICOS E BIOLÓGICOS DO SOLO COM COBERTURA DE LEGUMINOSAS, GRAMÍNEA E DOSES DE FÓSFORO, EM REGIÃO DE CERRADO, BRASILA utilização de plantas de cobertura é sugerida como método fundamental para manter e, ou, elevar o teor de matéria orgânica no solo, mantendo e, ou, melhorando as condições físicas, químicas e biológicas dele. Os solos do Cerrado apresentam baixa fertilidade, consequentemente baixos teores de fósforo (P), que se relacionam a todas as etapas metabólicas da planta, por essas fazerem parte dos processos de síntese proteica e energética, além de interferir no processo fotossintético. Este trabalho objetivou avaliar a influência de plantas de coberturas e doses de P sobre os atributos químicos e biológicos do solo. O trabalho foi conduzido em Selvíria, MS, em Latossolo Vermelho distrófico, com delineamento de blocos casualizados em esquema de parcelas subdivididas, com plantas de cobertura (milheto, guandu, crotalária, mucuna-preta, milheto + guandu, milheto + crotalária e milheto + mucuna-preta) e pousio nas parcelas e doses de P (0, 60 e 90 kg ha -1 de P 2 O 5 , na forma de monoamônio fosfato), nas subparce...

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Section: Chemical Propertiesmentioning

confidence: 91%

Chemical and biological properties of phosphorus-fertilized soil under legume and grass cover (Cerrado region, Brazil)

Souza

Silva

Arf

et al. 2013

Rev. Bras. Ciênc. Solo

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“…Cu content was within the adequate nutritional range for this crop (Oliveira et al, 2009), which was not observed in the first cycle. Fe leaf contents were lower in the second cycle (Table 8), which can be attributed to the insolubilization of this element at pH close to alkalinity and to the complexing power of the organic matter, which reduces the availability of P for plants (Cunha et al, 2011). B leaf contents were also reduced compared with the first cycle, which can be related to its low concentration in the sewage sludge applied to the soil.…”

Section: Resultsmentioning

confidence: 96%

Residual effect of sewage sludge fertilization on sunflower yield and nutrition

Albuquerque

Junio

Sampaio

et al. 2015

Rev. bras. eng. agríc. ambient.

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This study aimed to evaluate the residual effect of sewage sludge fertilization on yield and nutrition of sunflower in its second cycle. The experiment was carried out from April to August 2012. The treatments consisted of four doses of sewage sludge (0, 10, 20 and 30 t ha-1, dry basis) applied in the first cycle of sunflower, distributed in a randomized block design, with six replicates. Sunflower stem diameter, plant height, capitulum diameter and yield increased with the increment in sewage sludge doses, with maximum values observed with the dose of 30 t ha-1. The contents of calcium and magnesium in the soil, pH, sum of bases, effective and potential cation exchange capacity and base saturation increased, while potential acidity and the contents of manganese and iron in the leaves decreased, with the increment in the residual doses of sewage sludge. There was a reduction in yield and growth characteristics of sunflower in the second cycle; thus, additional fertilization with sewage sludge is recommended in each new cycle.

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“…Outros autores, também relataram que as plantas de cobertura em geral não alteram o pH do solo (PAVAN et al 1986, CUNHA et al 2011, SOUZA 2012. Entretanto, na fase inicial do atual estudo, ZALAMENA (2012) observou aumento de pH nas camadas até 10 cm de profundidade do solo sob cultivo de plantas anuais (sucessão moha + azevém e trigo mourisco + aveia branca) em relação à testemunha.…”

Section: Resultsunclassified

Cobertura do solo em vinhedos modifica os atributos do solo e o estado nutricional das videiras

Lehmann

Cassol

Sacomori

et al. 2016

Rev. Ciênc. Agrovet.

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RESUMOO cultivo de cobertura verde em vinhedos protege o solo da erosão e ainda pode ser uma alternativa para o controle do vigor da videira. Assim, o objetivo desse estudo foi avaliar a influência do cultivo de plantas de cobertura do solo de vinhedo nos atributos químicos do solo, na composição foliar e no crescimento de ramos da videira do cultivar Cabernet Sauvignon. As avalições foram realizadas na safra 2013/14, em experimento conduzido a partir de 2009 na região do Planalto Sul Catarinense, onde as condições edafoclimáticas favorecem o excesso de vigor da videira. Os tratamentos compreenderam três tipos de plantas, dois manejos e um controle. As plantas foram a sucessão de anuais, trigo mourisco (Fagopyrum esculentum) e azevém (Lolium multiflorum), a perene festuca (Festuca arundinacea) e as nativas (espontâneas) e os manejos foram roçada com o resíduo cultural distribuído em área total e, com a sua transferência da faixa da linha da videira para a faixa da entrelinha. O controle foi a aplicação de herbicida na faixa da linha e roçada na entrelinha. As amostragens das folhas e do solo foram realizadas nas fases de mudança de cor e de maturação plena da uva. As plantas de cobertura e seu manejo, em geral, não afetaram o pH, nem os teores de Al, Ca e Mg trocáveis no solo, porém as anuais aumentaram o P extraível na camada 0 -5 cm relativamente à testemunha. Em geral, a espécie perene aumentou o K extraível relativamente à testemunha nas camadas 5-10 e 10-15 cm e relativamente às plantas anuais e nativas em todas as camadas. A festuca promoveu menor teor de Mg nas folhas da videira em relação às plantas anuais e menores teores de P e K relativamente aos demais tratamentos e também diminuiu o teor de N foliar e a massa de ramos da videira em relação à testemunha. PALAVRAS-CHAVE:Cabernet Sauvignon, adubo verde, atributos do solo, composição foliar. ABSTRACTThe cover crop intercropping in vineyards protects the soil from erosion and can be an alternative for controlling the growth of the vine. The aim of this study was to evaluate the changes in the soil's chemical properties, leaf composition and branch growth of Cabernet Sauvignon vine caused by the cover crops in the vineyard. The study was carried in an experiment conducted from 2009 in the highlands of Santa Catarina state, where the soil and climatic conditions favor the excessive growth of the vine. The treatments consisted of three types of cover crops, two management and a control. The cover crops were annual, buckwheat (Fagopyrum esculentum) and ryegrass (Lolium multiflorum), the perennial fescue (Festuca arundinacea) and the native (spontaneous), while the managements were mowed with the crop residue in total area and, with its transfer from the row to the between row of the vine. Samples of leaves and soil were carried out in "veraison" and at end of grape maturation stages, respectively. The cover crops and its management in general did not change the soil pH, or the exchangeable content of Al, Ca and Mg, but the annual did increase the available P...

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Atributos químicos de solo sob produção orgânica influenciados pelo preparo e por plantas de cobertura

Cited by 19 publications

References 17 publications

Chemical and biological properties of phosphorus-fertilized soil under legume and grass cover (Cerrado region, Brazil)

Chemical and biological properties of phosphorus-fertilized soil under legume and grass cover (Cerrado region, Brazil)

Residual effect of sewage sludge fertilization on sunflower yield and nutrition

Cobertura do solo em vinhedos modifica os atributos do solo e o estado nutricional das videiras

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