Mineralization and Immobilization of Soil Nitrogen

Jansson, Sven L.; Persson, Jan

doi:10.2134/agronmonogr22.c6

Cited by 168 publications

(48 citation statements)

References 75 publications

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“…We hypothesized that plastic mulch increased N mineralization in urea‐amended soils. Soil moisture and temperature are known among the factors affecting soil N mineralization (Jansson and Persson, 1982). We also hypothesized that an increase in soil N mineralization in mulched soils would be greater without than with crop growing.…”

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Plastic Mulch Stimulates Nitrogen Mineralization in Urea‐Amended Soils in a Semiarid Environment

Long

Liu

et al. 2015

Agronomy Journal

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Soil N mineralization is critical for designing appropriate N management strategies, though it has been seldom studied in plasticmulched croplands. We evaluated plastic mulch e ect on N mineralization in urea-amended furrow-ridge plots with and without maize (Zea mays L.) planting at a semiarid rain-fed site, China. Clear lm covered all soil surfaces in the mulched treatments and maize was seeded in furrows in the cropped treatments. Mulch increased daytime soil temperature in the 0 to 15 cm throughout the season without maize but only in the seedling and elongation stages with maize, compared with no mulch. Mulch increased soil moisture in the whole season without maize but only in the early growth with maize, compared with no mulch in 2011. However, the mulch in uence on soil moisture was independent on the presence of maize in 2012. Compared with non-mulched soils, N mineralization rate increased in mulched soils throughout the season in 2011 and 2012. By harvest, in 2011 total N mineralized averaged 112 kg ha -1 in mulched soils, contrasting to 54 kg N ha -1 immobilized in non-mulched soils; in 2012 total N mineralization was 348 kg ha -1 in mulched soils whereas it was 116 kg ha -1 in non-mulched soils. Maize increased N mineralization in the tasseling and silking stages compared with no maize. However, the mulch e ect on N mineralization rate was independent on the presence of maize. We concluded that plastic mulch increased N mineralization in urea-amended soils by increasing soil temperature and moisture.

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Plastic Mulch Stimulates Nitrogen Mineralization in Urea‐Amended Soils in a Semiarid Environment

Long

Liu

et al. 2015

Agronomy Journal

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“…Furthermore, N min content increased markedly, more so in the A‐amended soil than in the AH‐amended soil. Nitrogen in soils is generally assumed to be subject to mineralization/immobilization turnover (MIT), which means that the organic N is transformed into NH 4 + before being assimilated by microorganisms. Nevertheless, Barraclough demonstrated that microorganisms take in amino acids directly and deamination occurs inside them.…”

Section: Discussionmentioning

confidence: 99%

Composted organic wastes from the pharmaceutical and agro‐food industries induce soil bioactivity and nodulation in alfalfa

et al. 2014

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“…A intensidade de mineralização da matéria-orgânica adicionada ao solo depende de diversos fatores, tais como: tipo de solo, teor de matéria-orgânica e N-total, relação C:N, teor de lignina e polifenois do material incorporado, tempo de uso do solo, pH, temperatura, umidade, suprimento de nutrientes inorgânicos e interações solo-planta (BLACK, 1968;JANSSON;PERSSON, 1982;MYERS et al, 1994).…”

Section: Colheita Sem Despalha a Fogo: Mudanças No Manejo Da Adubaçãounclassified

Balanço de nitrogênio e enxofre no sistema solo-cana-de-açúcar no ciclo de cana-planta

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Mineralization and Immobilization of Soil Nitrogen

Cited by 168 publications

References 75 publications

Plastic Mulch Stimulates Nitrogen Mineralization in Urea‐Amended Soils in a Semiarid Environment

Plastic Mulch Stimulates Nitrogen Mineralization in Urea‐Amended Soils in a Semiarid Environment

Composted organic wastes from the pharmaceutical and agro‐food industries induce soil bioactivity and nodulation in alfalfa

Balanço de nitrogênio e enxofre no sistema solo-cana-de-açúcar no ciclo de cana-planta

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