Search Results - "urea"

Optimizing nitrogen use efficiency of six forage grasses to reduce nitrogen loss from intensification of tropical pastures by Bastidas, Mike, Vázquez, Eduardo, Villegas, Daniel Mauricio, Rao, Idupulapati M., Gutierrez, Jhon Freddy, Vivas Quila, Nelson José, Amado, Miguel, Berdugo, Carlos, Arango, Jacobo

“…For example, Cayman showed a NUE of 87.8% with CAN and 40.4% with urea, while the NUE of Basilisk with CAN was 8.0% and 76.4% with urea. …”
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Remediation of soil acidification by form of nitrogen fertilizer on grass swards of Australia and Thailand by Armour, J. D., Berthelsen, S., Ruaysoongnern, Sawaeng

“…Acidification has also been measured in other Australian cropping systems fertilized with urea or ammonium forms of N. The major processes contributing to what could be termed anthropogenic acidification are removal of base cations in the harvested product and leaching below the root zone of nitrate from ammonium and urea N fertiliser or legumes resulting in an accumulation of protons in surfaces horizons. …”
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Poró (Erythrina poeppigiana) y madero negro (Gliricidia sepium) como suplementos proteicos en la producción de leche by Camero Rey, Luis Alberto

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Fertilización orgánica como opción a los fertilizantes sintéticos en la producción de biomasa del pasto Marandú (Brachiaria brizantha) by Astorga Peralta, Jefferson Steven, González Rayo, José Pablo

“…Se utilizó un arreglo unifactorial en diseño de bloques completos al azar con tres tratamientos: 1) fertilización completa + urea, 2) compost + urea y 3) solo compost, midiendo variables como altura de planta, diámetro del tallo y producción de materia seca a los 60 días después del corte. …”
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Meat production from small ruminants in sub-Saharan Africa. 1. Carcass characteristics of Menz type sheep from Debre Berhan, Ethiopia. 2. A literature review on consumer preference... by Gray, R., Berg, C., Windsor, R.

“…Blood levels of' P, Ca, Mg, total protein, urea and red and white blood cell counts were examined monthly for two years in Botswana goats in an attempt to establish normal values and to evaluete the effect of supplementation with drought relief cubes. …”
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El ensilaje de pulpa de naranja en el engorde de corderos. by Vásquez G., José R.

“…Los tratamientos fueron: ensilaje con soya y ensilaje con soya + urea. Este estudio tuvo una duración de 73 días. …”
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Empleo de subproductos de la agroindustria en levante de novillas para la producción de leche by Zapata, José O., Medrano, Jorge

“…Al análisis de los datos se concluye que el empleo de los subproductos como gallinaza, melaza o urea en reemplazo parcial del concentrado representa economía aceptable y las ganancias de los animales/dia están por encima de .430 kg usando forrajes de baja calidad.…”
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Agronomic, economic, and environmental performance of nitrogen rates and source in Bangladesh’s coastal rice agroecosystems by Emran, Shah-Al, Krupnik, Timothy J., Kumar, Virender, Ali, M. Yusuf, Pittelkow, Cameron M.

“…Researcher designed but farmer-managed dispersed plots were located across three district sub-units (Barisal Sadar, Hizla, Mehendigonj) and compared N source (broadcast prilled urea or deep-placed urea super granules (USG)) at four N rates. …”
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Evaluating irrigation and fertilizer strategies for sustainable forage productivity and improved nitrogen efficiency in the sub-humid highlands of Ethiopia by Taye, C.W., Hussein, Misbah A., Ayalew, A.D., Assefa, T.T., Fohrer, N., Riga, Fikadu T., Derseh, Melkamu B., Adie, Aberra, Tilahun, Seifu A.

“…Napier grass ILRI-16791 with 300 kg ha⁻¹ urea achieved the highest DMY (20.7 tha⁻¹) and NU (259.2 kg ha⁻¹), while 100 kg ha⁻¹ urea maximized NUE (138.8 kg kg⁻¹) and minimized NS (-168.8 kg ha⁻¹). …”
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Absorción de exponente 15 N de los fertilizantes en una rotación Allium sativum - Setaria italica, en lisímetros by Lazzari, M.A, Rosell, R.A, Landriscini, M.R.

“…Nitrogen uptake by an annual rotation of garlic (Allium sativum/ and millet Setaria italica) from tagged urea and ammonium sulfate applied toa Typic Haplus toll in a battery of differential weighing lysimeters was studied during three years. …”
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Metabolic Profile of F1 Holstein × Zebu Lactating Dairy Cows Under Grazing Supplemented with Two Non-Protein Nitrogen Sources by Mora Luna, Robert Emilio, Herrera Angulo, Ana María, Eslava Tovar, José Fernando, Isea Chávez, Juan Carlos, Enrique Darghan, Aquiles

“…To evaluate the effect of two non-protein nitrogen sources on the metabolic profile of lactating dairy cows, 31 F1 Holstein × Zebu multiparous cows averaging 419 ± 46 kg body weight and 17.1 ± 3.3 kg milk·animal·d-1 were randomly assigned to two treatments for 91 days: 1)59 g·animal-1·d-1 of urea and 2) 64 g·animal-1·d-1 of Optigen II® as slow-release urea (SRU). …”
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Fertiliser policies in ensuring food security and emerging issues in India by Singh, Bijay, Sapkota, Tek Bahadur

“…Suitable policy mechanisms need to be evolved for gradually liberalizing urea while protecting the profits of farmers and affordability of fertilisers P and K should be ensured for the farmers.…”
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India's fertilizer policies: implications for food security, environmental sustainability, and climate change by Sapkota, Tek, Bijay, Singh

“…Gradual liberalization of urea pricing, alongside measures to ensure the affordability of phosphatic and potassium fertilizers for small and marginal farmers, will be essential to address the food-fertilizers-climatic crisis.…”
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The effects of cultivation site on forage quality of Calliandra calothyrsus var. Patulul by Hess, H.D., Tiemann, Tassilo T., Noto, F, Franzel, Steven, Lascano Aguilar, Carlos Eduardo, Kreuzer, M.

“…A grass-alone diet, with and without urea supplementation, and five legume-supplemented diets (1/3 of dietary dry matter) were tested with the rumen simulation technique (Rusitec) (n = 4). …”
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Optimal utilization of legume fodder banks and low quality roughages by grazing cattle. by Mani, R.I.

“…The immediate interpretation was that, because the urea-molasses block was fed at night, most of the additional N was excreted in the urine. …”
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Digestibilidad in vitro de la biomasa verde amonificada del pasto Guinea (Panicum maximum, Jacq), cv Colonial, finca Santa Rosa, Sabana Grande, Managua by Castillo Zeas, Miguel Efraín, Baldizón Payán, Luís Humberto

“…La digestibilidad de la materia seca presentó diferencias estadísticas entre los distintos tratamiento y fue mejorada significativamente (38.79 vs 48.74 para 0 y 5% de urea respectivamente). La materia orgánica es mejor que la fibra detergente neutro también fueron mejoradas en su digestibilidad con el tratamiento de 5% de urea en base a forraje verde. …”
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Influencia de diferentes dosis de productos inductores de la floración (Carburo de calcio y ethrell), en dos variedades de piña (Ananas comosus (L) Merril) sobre la calidad post-co... by Olivares Pérez, Róger José

“…En la calidad interna para la variedad Cayena lisa, los mayores valores fueron 12.45 porciento grados brix y 4.15 pH obtenidos con el producto Carburo de calcio más Urea y con la dosis de 50 cc. En la variedad Monte lirio 6.79 porciento grados brix con Ethrell y con la dosis de 30 cc; el pH fue de 4.43 con Carburo de calcio más Urea, con la dosis de 50 cc. …”
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Estudio exploratorio del uso de microorganismos para promover la absorción de nitrógeno mediante la técnica de dilución isotópica del ¹⁵N, en el cultivo del plátano (Musa paradisia... by Ruíz Velásquez, Hilda Luvianca, García Picado, Eugenia de los Ángeles

“…El uso eficiente del N fue aumentado cuando se utilizó Urea 460 mg kg-1 combinado con microorganismos, lográndose los mayores valores de eficiencia entre los 90 y 120 ddt. …”
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Utilización de nitrógeno no proteico de liberación controlada en dietas a base de ensilaje de maíz: aspectos digestivos y metabólico by Jankovic, Veronica Vanina

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Nitrogen fertilizer equivalence of black soldier fly frass fertilizer and synchrony of nitrogen mineralization for maize production by Beesigamukama, D., Mochoge, Benson, Korir, N., Musyoka, M.W., Fiaboe, K., Nakimbugwe, D., Khamis, F.M., Subramanian, S., Dubois, T., Ekesi, S., Tanga, C.M.

“…The yield data from urea treated plots were used to determine the NFE of both organic inputs. …”
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