Potassium balance and release kinetics under continuous rice–wheat cropping system in Vertisol

Singh, Muneshwar; Singh, Veer; Reddy, D. Damodar

doi:10.1016/s0378-4290(01)00206-4

Cited by 85 publications

(44 citation statements)

References 22 publications

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“…Dessa maneira, para o adequado manejo da adubação potássica, é importante definir a disponibilidade das diferentes formas de K no solo às plantas e sua influência na dinâmica do K no perfil do solo. Isso porque a aplicação insuficiente de fertilizante pode levar ao esgotamento das reservas do solo (Rosolem et al, 1993;Singh et al, 2002;Öborn et al, 2005), e a aplicação excessiva pode intensificar as perdas por lixiviação (Rosolem et al, 2006(Rosolem et al, , 2010, mesmo em solos com média e alta capacidade de troca catiônica (Ernani et al, 2007;Werle et al, 2008).…”

Section: Introductionunclassified

Suprimento de potássio em função da adubação potássica residual em um Latossolo Vermelho do Cerrado

Rosolem

Vicentini²,

Steiner³

2012

Rev. Bras. Ciênc. Solo

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Section: Introductionunclassified

Suprimento de potássio em função da adubação potássica residual em um Latossolo Vermelho do Cerrado

Rosolem

Vicentini²,

Steiner³

2012

Rev. Bras. Ciênc. Solo

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“…Research investigating rice-wheat and wheat-soybean systems in India by Singh, Singh and Reddy (2002) and Bhattacharyya et al (2006), respectively, has demonstrated that K application must be revised in the long term, as the currently recommended dose represents a threat to the sustainability of local agriculture by promoting the depletion of soil K. According to both sets of authors, this deficit has been supplied by the presence of non-exchangeable forms of K in the soil. These findings demonstrate the importance of the forms of K characterizing crop nutrient supplies.…”

Section: Soil P Balance Was Negative For All Treatmentsmentioning

confidence: 99%

“…It is therefore important for the adequate management of phosphate and potassic fertilization to estimate the balance of these nutrients in the soil. This is because the insufficient application of fertilizer can lead to a negative balance, resulting in decreased soil fertility, which affects the yield and profitability of system resources and leads to soil degradation (SINGH;SINGH;REDDY, 2002). On the other hand, the excessive application of fertilizer leads to an excessively positive balance, resulting in low nutrient use efficiency and low economic performance (BALIGAR; FAGERIA, HE, 2001), with losses also intensified by erosion and leaching (ROSOLEM et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Phosphorus and potassium balance in soil under crop rotation and fertilization

et al. 2012

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The use of crop rotation and manure application can provide sustainability for an agricultural production system by improving soil quality and increasing nutrient use efficiency. This study aimed to evaluate the effect of mineral, organic and mineral+organic fertilization on grain yield and on soil phosphorus and potassium balance, in two crop systems under no-till, with and without rotation of cover crops. The experiment was carried out from 2006 to 2008 on a clayey Rhodic Hapludox in Marechal Cândido Rondon, Paraná State, Brazil. The cropping sequence in the rotation system involving cover crops was black oat + hairy vetch + forage turnip/corn/pigeon pea/wheat/mucuna + brachiaria + sunn hemp, and in the succession system was wheat/corn/wheat/soybean. Organic and mineral+organic fertilizations consisted of the application of solely manure and manure combined with mineral fertilizer, respectively. Soil P and K balances were calculated after the second year of the experiment, up to a depth of 0.40 m. First year corn yields were higher in the crop succession system accompanied by mineral fertilization. In the second year, wheat and soybean yield did not vary between crop systems and nutrient sources, demonstrating the residual effect of crop rotation and manure use. Crop rotation with cover crops resulted in an increase in soil K levels by promoting the recycling of this nutrient in the soil. In both crop systems, the application of mineral and organic fertilizers -either in isolation or in combinationresulted in a negative soil P and K balance in the short term. This represents a threat to the sustainability of the agricultural production system in the long term, due to the depletion of soil nutrient reserves. Key words: Organic fertilization, fertilizer, cover crops, soil nutrient, no-till Resumo A utilização de rotação de culturas e a aplicação de esterco pode conferir sustentabilidade ao sistema de produção agrícola, por melhorar a qualidade do solo e aumentar a eficiência de uso de nutrientes. O objetivo deste trabalho foi avaliar o efeito da adubação mineral, orgânica e mineral+orgânica na produtividade de grãos e no balanço de fósforo e de potássio no solo em dois sistemas de culturas sob plantio direto, com e sem rotação de plantas de cobertura. O experimento foi conduzido em Marechal Cândido Rondon, Paraná, Brasil, de 2006 a 2008, em um Latossolo Vermelho. A sequência de culturas no sistema em rotação com plantas de cobertura foi aveia preta + ervilhaca + nabo/milho/guandu/trigo/ mucuna + braquiária + crotalária / milho, e no sistema em sucessão foi trigo/milho/trigo/soja/milho. As adubações, orgânica e mineral+orgânica consistiram, respectivamente, da aplicação de esterco e de esterco combinado com fertilizante mineral. O balanço de P e de K no solo foi avaliado, após o segundo ano de condução do experimento, na camada de 0,0-0,40 m de profundidade. A produtividade do milho, no primeiro ano, foi superior na sucessão de culturas e na adubação mineral. No segundo ano, a produtividade de trigo e de ...

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“…As discussed above, straw incorporation significantly increases SOC Liu et al, 2014), which is a key determinant in crop production (Singh et al, 2002). In the current meta-analysis, regression analysis revealed that each increase of 1 Mg C ha −1 SOC in the root zone could improve crop yield by 101−157 kg ha −1 yr −1 (Fig.…”

mentioning

confidence: 93%

Straw incorporation increases crop yield and soil organic carbon sequestration but varies under different natural conditions and farming practices in China: a system analysis

Han¹,

Xu²,

Dungait³

et al. 2017

Preprint

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Potassium balance and release kinetics under continuous rice–wheat cropping system in Vertisol

Cited by 85 publications

References 22 publications

Suprimento de potássio em função da adubação potássica residual em um Latossolo Vermelho do Cerrado

Suprimento de potássio em função da adubação potássica residual em um Latossolo Vermelho do Cerrado

Phosphorus and potassium balance in soil under crop rotation and fertilization

Straw incorporation increases crop yield and soil organic carbon sequestration but varies under different natural conditions and farming practices in China: a system analysis

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