High Water Regime Can Reduce Ammonia Volatilization from Soils under Potato Production

Liu, Guodong; Li, Yuncong; Alva, A. K.

doi:10.1080/00103620701328289

Cited by 22 publications

(25 citation statements)

References 22 publications

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“…This could be, in part, due to the greater pH of the former as compared to that of the latter soils (Table 1). The pH for the KGL soil was the highest among the four soils evaluated in this study, which recorded the highest NH 3 emission rate among the four soils (Liu et al 2007). …”

Section: Differences In Cumulative N-loss Between Two Soil Water Regimesmentioning

confidence: 90%

“…Fertilizer application rates are 220 kg N ha −1 for potato production and 220 kg N ha −1 for sweet corn under center pivot irrigation system. Quincy Fine Sand (QFS, Mixed, mesic Xeric Torripsamments) and Warden Silt Loam (WSL, Coarse-silty, mixed, mesic, Xerollic Camborthids, dark grayish-brown soil) occur in the Columbia Basin potato production region in south central Washington (Liu et al 2007). The typical rotation on both soils has been corn-wheat-potato under center pivot irrigation system.…”

Section: Soilsmentioning

confidence: 99%

“…Three hundred grams (dry weight) of each soil was placed in a 500-ml incubation bottle (Liu et al 2007). The soil-surface area in the bottle was about 60 cm 2 .…”

Section: Ammonia Trapping and Chemical Analysismentioning

confidence: 99%

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Moisture Quotients for Ammonia Volatilization from Four Soils in Potato Production Regions

Liu

Alva

2007

Water Air Soil Pollut

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Ammonia (NH 3 ) emission from nitrogen (N) fertilizers used in agriculture decreases N uptake by the crop and negatively impacts air quality. In order to better understand the factors influencing NH 3 emission from agriculture, this research was conducted with four major soils used for potato production: Biscayne Marl Soil (BMS, pH 7.27), and Krome Gravelly Loam (KGL, pH 7.69) from Florida; and Quincy Fine Sand (QFS, pH 6.65), and Warden Silt Loam (WSL, pH 6.46) from Washington. Potassium nitrate (KNO 3 ), ammonium nitrate (NH 4 NO 3 ), ammonium sulfate ((NH 4 ) 2 SO 4 ) or urea ((NH) 2 CO) sources were evaluated for ammonia volatilization at 75 kg N ha −1 rate. The soil water regime was maintained at either 20 or 80% of field capacity (FC), and incubated at 11, 20 or 29°C. Results indicated that NH 3 volatilization rate at 20% FC was 2 to 3-fold greater than that at 80% FC. The cumulative volatilization loss over 28 days ranged from 0.21% of N applied as NH 4 NO 3 to 25.7% as (NH 4 ) 2 SO 4 . Results of this study demonstrate that NH 3 volatilization was accelerated at the low soil water regime. Moisture quotient (Q) is defined as a ratio of NH 3 emission rate at 20% FC to that at 80% FC both at the same temperature. The peak Q values of NH 3 volatilization were up to 20.8 for the BMS soil at 20°C, 112.9 for the KGL soil at 29°C, 19.0 for the QFS soil at 20°C, and 74.1 for the WSL soil at 29°C, respectively. Thus, maintaining a suitable soil water regime is important to minimize N-loss via NH 3 volatilization and to improve N uptake efficiency and air quality.

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Section: Differences In Cumulative N-loss Between Two Soil Water Regimesmentioning

confidence: 90%

Section: Soilsmentioning

confidence: 99%

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Moisture Quotients for Ammonia Volatilization from Four Soils in Potato Production Regions

Liu

Alva

2007

Water Air Soil Pollut

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“…An advantage of urea over ammonium nitrate is delayed potential for leaching. However, ammonia volatilization loss is greater with urea or ammonium sulfate compared to that from ammonium nitrate or potassium nitrate (Liu et al 2007). Therefore, urea or ammonium sulfate must be incorporated after application to avoid volatilization losses, and its slow conversion to NO 3 especially in cool climates/seasons may reduce yield.…”

Section: Forms Of N-fertilizermentioning

confidence: 97%

Strategies to Reduce Nitrate Leaching into Groundwater in Potato Grown in Sandy Soils: Case Study from North Central USA

2010

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There is increasing public concern to reduce nitrate pollution to groundwater, especially in sandy soils. Strategies to reduce nitrate leaching are developed to increase N use efficiency, reduce groundwater pollution, and increase tuber yield. A growing interest in N management should consider management strategies for N supply, soil moisture for transport, and crop N demand that are economical and compatible with local production systems. We present a review of the literature on conventional and innovative strategies for N, irrigation, and crop management for potato production in reducing N leaching in sandy soils. The amount of fertilizer-N should be decided based on an integrated evaluation of soil organic matter content, soil texture, residual soil N, crop residues, credit to organic N sources, crops to be grown including varieties and crop physiological needs, cropping systems, yield potential, water management, and N concentrations in irrigation water. Research advances have no quick fix for controlling NO 3 leaching to groundwater. However, the best combination of proven strategies can reduce leaching potential significantly.Resumen Existe una preocupación pública en aumento para reducir la contaminación de nitrato en el agua del subsuelo, especialmente en suelos arenosos. Se han desarrollado estrategias para reducir la lixiviación de nitratos para aumentar el uso eficiente de N, reducir la contaminación del agua del subsuelo, y para aumentar el rendimiento de tubérculo. Un interés en aumento en manejo de N debería de considerar estrategias de manejo para suministro de N, humedad del suelo para el transporte, y demanda de N del cultivo que sean económicas y compatibles con los sistemas locales de producción. Presentamos una revisión de la literatura en las estrategias convencionales e innovativas para el manejo de N, riego y del cultivo para producción de papa en la reducción de la lixiviación de N en suelos arenosos. La cantidad del fertilizante nitrogenado deberá decidirse con base a una evaluación integrada del contenido de materia orgánica en el suelo, textura, N residual, residuos de cosecha, reconocimiento a las fuentes de N orgánico, cultivos a sembrarse incluyendo variedades y necesidades fisiológicas del cultivo, sistemas de cultivo, potencial de rendimiento, manejo del agua, y concentraciones de N en el agua de riego. Los avances en investigación no tienen un remedio rápido para controlar la lixiviación de NO3 al agua del subsuelo. No obstante, la mejor combinación de estrategias probadas pueden reducir significativamente el potencial de lixiviación.

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“…Esse fenômeno pode ser pequeno, totalizando de 1 a 15 % (Sangoi et al, 2003;Cantarella et al, 2008;SanzCobena et al, 2008), ou atingir valores extremamente altos -maiores do que 50 % do N aplicado (LaraCabezas et al, 2000;Sangoi et al, 2003;Rochette et al, 2009a). Baixos teores de matéria orgânica, reduzida capacidade de troca de cátions (Sangoi et al, 2003) e baixa umidade no solo (Liu et al, 2007), assim como altas doses de N aplicado (Ma et al, 2010), alta temperatura (Clay et al, 1990), valores elevados de pH (Sengik et al, 2001) e maior presença de cobertura R. Bras. Ci.…”

Section: Introductionunclassified

Volatilização de amônia do solo após a aplicação de ureia convencional ou com inibidor de urease

Tasca

Ernani

Rogeri

et al. 2011

Rev. Bras. Ciênc. Solo

101

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RESUMOVolatilização de NH 3 é a principal reação que diminui a eficiência de utilização pelas plantas do N proveniente da ureia, quando ela é aplicada sobre a superfície do solo. A fim de minimizar essa perda, produtos têm sido misturados à ureia para inibir temporariamente a ação da urease. Este trabalho objetivou avaliar alternativas de aplicação de um fertilizante com inibidor de urease, visando a diminuir a volatilização de NH 3 relativamente à ureia convencional, em algumas condições ambientais e de solo. Foram desenvolvidos quatro experimentos, todos em condições de laboratório, em 2007 e 2008, em Cambissolo Húmico. Os tratamentos variaram em cada estudo e incluíram combinações de níveis de pH do solo (natural; 5,5; 6,3; e 6,8), umidade do solo (5, 10 ou 20 % de água) e temperaturas ambientais (18 e 35 ºC), além de estados físicos (sólido ou líquido) e de métodos de aplicação dos fertilizantes (na superfície ou incorporado ao solo). As unidades experimentais foram constituídas por bandejas plásticas (23 x 51 x 17 cm) com 12 kg de solo, numa espessura de 15 cm, sobre as quais foram instaladas câmaras coletoras de NH 3 . A amônia volatilizada foi determinada em várias épocas, nos primeiros 28 dias após a aplicação dos fertilizantes. O pico de volatilização diária de NH 3 ocorreu sempre na primeira semana depois da adição dos fertilizantes ao solo, e aconteceu dois a três dias mais tarde para a ureia com inibidor de urease, em relação à ureia convencional. A volatilização de NH 3 nem sempre foi maior para a ureia convencional em comparação ao fertilizante contendo inibidor de urease, tampouco para o estado líquido em relação ao granulado. A volatilização de NH 3 aumentou com a elevação do pH, da temperatura e da dose aplicada de N e foi menor nos extremos de umidade (solo com 5 % ou com 20 % de água). Para os fertilizantes aplicados sobre a superfície do solo, a taxa máxima de perda diária foi(1) Parte da Dissertação de Mestrado do primeiro autor apresentada à Universidade do Estado de Santa Catarina (UDESC).Recebido para publicação em fevereiro de 2010 e aprovado em dezembro de 2010.

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High Water Regime Can Reduce Ammonia Volatilization from Soils under Potato Production

Cited by 22 publications

References 22 publications

Moisture Quotients for Ammonia Volatilization from Four Soils in Potato Production Regions

Moisture Quotients for Ammonia Volatilization from Four Soils in Potato Production Regions

Strategies to Reduce Nitrate Leaching into Groundwater in Potato Grown in Sandy Soils: Case Study from North Central USA

Volatilização de amônia do solo após a aplicação de ureia convencional ou com inibidor de urease

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