Resultados de búsqueda - "urea"

Partial balance of nitrogen in a maize cropping systems in humic nitisol of Central Kenya por Kimetu, J.M., Mugendi, DN, Bationo, B. André, Palm, Cheryl A., Mutuo, PK, Kihara, Job Maguta, Nandwa, SM, Giller, Kenneth E.

“…1 for tithonia treatment and 2.9 ?g N m?2 h?1 for urea treatment. Tithonia green biomass treatment was found to emit N2O at relatively higher rate compared to urea treatment. …”
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Mjölkureahalten som mått på vommikrobernas kväveförsörjning och kons miljöbelastning por Strömgren, Anna

“…The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. …”

Mjölkureahalten som mått på vom-mikrobernas kväveförsörjning och kons miljöbelastning por Strömgren, Anna

“…The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. …”

Nitrogen based sanitation of source separated faecal matter por Nordin, Annika

“…The 1% ammonia treatment with equimolar addition of total ammonia as 2% urea resulted in a higher pH (10.2) than 2% urea (9.2). …”
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Evaluación del efecto de diferentes niveles de amonificación sobre la calidad nutritiva del rastrojo de sorgo por García Rodríguez, Omar, García Ocampo, Denis

“…El mayor contenido de proteína bruta (7.94 %), se logró con el nivel de inclusión de Urea de 5 %. En relación a la fibra bruta los niveles de inclusión de Urea de 3 y 5 % disminuyeron en un 2.5 % con relación el nivel de 0 % de Urea.…”
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Alley cropping with Senna siamea in southwestern Nigeria: 11 Dry matter, total N, and ureaderived N dynamics of the Senna and maize roots por Vanlauwe, Bernard, Sanginga, N., Merckx, Roel

“…The biomass, total N content and urea-derived N content of the Senna and maize roots in a Senna-maize alley cropping system were followed for a period of 1.5 years (1 maize-cowpea rotation followed by 1 maize season) to a depth of 90 cm, after the application of 15N labeled urea. …”
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Influence of Field Environment and Fertilizer Management on Ammonia Loss From Flooded Rice por Fillery, I. R. P., Simpson, J.R., De Datta, S.K.

“…Ammonia volatilization proceeded rapidly and continued for 6 to 10 d after urea was applied. In the AT treatments, NH3 loss accounted for 47% and 27% of the urea‐N applied. …”
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Efecto del biol como fertilizante orgánico en tres cultivares de Pennisetum purpureum, El Coral - Chontales, Nicaragua, 2016 - 2017 por Cárdenas Moraga , Mario José, Hondoy López, Danny Ariel

“…Ct-115; agrupados en un diseño de bloques completos al azar (BCA), distribuidos en cinco tratamientos T1: Testigo o sin fertilización, T2: Fertilización de 100% Urea, T3: Dosis de biol/urea 50%, T4 Dosis de biol/Urea 25%, T5: Solo dosis de biol. …”
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Koncentrationer av mjölkurea, våmammoniak och urinurea vid olika halter av kalium i foderstaten till mjölkkor por Johansson, Sara

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The effect of additional nitrate and sulfur in the diet on the methane production in cattle por Bäckman, Karolin

“…This present study used 4 male Yellow cattle which were fed a basal diet added with either of Urea, Urea + Sulfur, Nitrate or Nitrate + Sulfur in a Latin square design. …”

Optimised ammonia sanitation of sewage sludge por Häfner, Franziska

“…No viable eggs were detected with 1.5% urea and 1.5% urea+3% CaCO3, when temperature was maintained over 35°C during four consecutive days. …”
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Composición química de la biomasa verde y amonificada pasto Gamba (Andropogon gayanus, Kunth), cv CIAT-612, en inicio de floración, Santa Rosa, Sabana Grande, Managua, Nicaragua por Toruño, Alfonso, Umaña, Francisco

“…La FAD disminuyo de 52.46 % a 47.72 % para 0 y 3 % de inclusión de Urea. Los minerales evaluados presentaron una tendencia inversa con los tratamientos de Urea, Incrementándose el Ca desde el tratamiento testigo(0.65 %) hasta 1.24 % para 0 y 5 % de Urea. …”
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Utilization of supplemented desert grass by Sudan Desert goats por Ali, K.E., Mustafa, E.E.

“…All groups supplemented showed a loss in body weight except those given cotton seed cake. Serum urea in the groups given urea (32±9 gm/dl) or cotton seed cake (27.6±13.0gm/dl) were significantly higher (p…”
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Evaluación de dos aditivos para disminuir pérdidas de N en la producción de Maíz para Forraje, Zamorano, Honduras. por Contreras V., Luis F., González V., Julio D.

“…La fuente de N comercial más usada como fertilizante es la urea, que produce pérdidas de nitrógeno por volatilización, lixiviación, escorrentía y de-nitrificación. …”
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Diffusion of Inorganic Materials in Soil por Kirk, G.J.D.

“…A sensitivity analysis of the urea model shows how loss of urea-derived nitrogen by ammonia volatilization depends on fertilizer, soil and atmospheric parameters. …”
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Nitrogen fertilizer equivalencies of organics of differing quality and optimum combination with organic nitrogen source in Central Kenya por Kimetu, J.M., Mugendi, DN, Palm, Cheryl A., Mutuo, PK, Gachengo, CN, Bationo, B. André

“…1) from organic and inorganic fertilization was in the order of senna+urea (31.2), tithonia+urea (29.4), calliandra+urea (29.3), tithonia (28.6), senna (27.9), urea (27.4), calliandra (25.9), and control (22.5) for three cumulative seasons. …”
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The role of regulations in the fertilizer sector of Pakistan por Ali, Mubarik, Ahmed, Faryal, Channa, Hira, Davies, Stephen

“…Meanwhile the yield response of urea has tapered off and its’ per hectare use is fast reaching its optimal level. …”
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Optimizing soil fertility management strategies to enhance banana production in volcanic soils of the northern highlands, Tanzania por Meya, A.I., Ndakidemi, P.A., Mtei, K.M., Swennen, Rony L., Merckx, Roel

“…The treatment factors were trial sites (Tarakea, Lyamungo, and Tengeru) as the main factor and N fertilization strategies (as urea alone, sole cattle manure, and in combination with urea, sole common bean (Phaseolus vulgaris L.) haulms as well as in combination with urea) as a sub factor. …”
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Efecto de las bacterias promotoras de crecimiento Azospirillum sp y Pseudomonas fluorescens en el cultivo de maíz por Nolasco C., Oscar R.

“….+ P. fluorescens, Azospirillum sp. + Urea 50%, P. fluorescens, Fertilización completa, Azospirillum sp, + P. fluorescens + Urea 50% y testigo sin fertilizar. …”
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Metabolit- och hormonnivåer som tidiga markörer för fruktsamhet och produktionsstörningar hos mjölkkor por Johansson, Karin

“…BHB, NEFA and urea also is related to fertility. There are also some hormones that have been suggested to indicate energy status. …”