Effect of nitrogen fertilizer on nitrogen pools and soil communities under grazed pastures

Parfitt, R. L.; Couper, J; Parkinson, Rachel; Schon, N.L.; Stevenson, BA

doi:10.1080/00288233.2012.670118

Cited by 10 publications

(3 citation statements)

References 62 publications

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“…Plants meet the demand for nutrients and energy of plants by increasing the absorption of nutrients from the underground part of the soil, thus increasing the competition between plants and microorganisms. (4) Compared with warming, clipping may have a greater impact on soil NO 3 − -N. Soil NO 3 − -N is an important factor affecting bacterial biomass and community composition [55][56][57]. This study found that soil microbial communities of different types of meadows have different responses to warming and clipping, which was consistent with previous studies [16,58].…”

Section: Discussionsupporting

confidence: 88%

Response of Soil Microbial Communities to Warming and Clipping in Alpine Meadows in Northern Tibet

Zhang

et al. 2020

Sustainability

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In order to explore responses of soil microbial communities among different alpine meadows under warming and clipping, soil microorganisms of three alpine meadow sites (low altitude: 4313 m, alpine steppe meadow, 30°30′ N, 91°04′ E; mid-altitude: 4513 m, alpine steppe meadow, 30°31′ N, 91°04′ E; and high altitude: 4693, alpine Kobresia meadow, 30°32′ N, 91°03′ E) were measured using the phospholipid fatty acid (PLFA) method. Both warming and clipping significantly reduced PLFA content and changed the community composition of soil microbial taxa, which belong to bacterial and fungal communities in the alpine Kobresia meadow. Warming significantly reduced the soil total PLFA content by 36.1% and the content of soil fungi by 37.0%; the clipping significantly reduced the soil total PLFA content by 57.4%, the content of soil fungi by 49.9%, and the content of soil bacteria by 60.5% in the alpine Kobresia meadow. Only clipping changed the total fungal community composition at a low altitude. Neither clipping nor warming changed the microbial community composition at a moderate altitude. Soil temperature, soil moisture, and pH were the main factors affecting soil microbial communities. Therefore, the effects of warming and clipping on soil microbial communities in alpine meadows were related to grassland types and soil environmental conditions.

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Section: Discussionsupporting

confidence: 88%

Response of Soil Microbial Communities to Warming and Clipping in Alpine Meadows in Northern Tibet

Zhang

et al. 2020

Sustainability

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“…En la zona centro de México, el trébol blanco (Trifolium repens L), ballico perenne (Lolium perenne L), pasto ovillo (Dactylis glomerata L) y alfalfa (Medicago sativa L) sembradas en 171,520 hectáreas son las especies forrajeras que mejor desempeño han demostrado bajos condiciones de pastoreo en praderas puras o mixtas (1,2,3) . Sin embargo, por su composición química, persistencia debido a su hábito de crecimiento rastrero, adaptabilidad a las zonas templadas, el trébol blanco es la especie de mayor importancia agronómica entre las casi 300 especies del género Trifolium (4) .…”

Section: Introductionunclassified

Análisis de crecimiento estacional de una pradera de trébol blanco (Trifolium repens L)

Moreno

Ríos

García

et al. 2022

Rev. Mex. Cienc. Pecu.

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El objetivo del presente estudio fue evaluar un análisis de crecimiento del trébol blanco (Trifolium repens L) y determinar el momento óptimo de cosecha por estación. El experimento se realizó en el Colegio de Postgraduados, Campus Montecillo, Texcoco, México. Se utilizaron 24 parcelas de 3.7 X 1.7 m, distribuidas en un diseño completamente al azar, con ocho tratamientos y tres repeticiones por estación. Los tratamientos consistieron en cortes semanales sucesivos, durante un ciclo de rebrote de ocho semanas, en cada estación del año. Al inicio del estudio se realizó un corte de uniformización y se determinó el forraje residual. Las variables evaluadas fueron: acumulación de materia seca, composición botánica y morfológica e índice de área foliar del trébol blanco. La mayor acumulación de forraje (P<0.05) se presentó en la octava semana en primavera (2,688 kg MS ha-1). La producción de hoja fue mayor (p < 0.05) en primavera, otoño e invierno. El mayor índice de área foliar se alcanzó en la octava semana en primavera (3.0; P< 0.05). Se recomienda aprovechar la pradera de trébol blanco en la sexta semana para primavera-verano y séptima semana en otoño e invierno.

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“…Alguns estudos apoiam essa possibilidade. Os processos de nitrificação, e, portanto, seus organismos envolvidos, são regulados pela disponibilidade de N-amônio no solo (BUTTERBACH-BAHL et al, 2013;OUYANG et al, 2016), e embora o uso de fertilizantes nitrogenados aumente a disponibilidade de N no solo, há estudos que demostraram que o número de cópias do gene amoA (AOA) não foi responsivo à aplicação de N no solo ou até diminuiu em solos ácidos (PARFITT et al, 2012;. Da mesma forma foi demonstrado que a abundância da comunidade AOB pode não ser afetada pelo aumento de N em solos fertilizados (HALLIN et al;.…”

Section: Resposta Dos Microrganismos Nitrificadores à Mudança Do Uso De Solo E Fertilizaçãounclassified

Efeitos da conversão pastagem-canavial e da intensificação do sistema de pastagem na microbiota do solo associada ao ciclo do nitrogênio

Morais¹

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Effect of nitrogen fertilizer on nitrogen pools and soil communities under grazed pastures

Cited by 10 publications

References 62 publications

Response of Soil Microbial Communities to Warming and Clipping in Alpine Meadows in Northern Tibet

Response of Soil Microbial Communities to Warming and Clipping in Alpine Meadows in Northern Tibet

Análisis de crecimiento estacional de una pradera de trébol blanco (Trifolium repens L)

Efeitos da conversão pastagem-canavial e da intensificação do sistema de pastagem na microbiota do solo associada ao ciclo do nitrogênio

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