Resultados de búsqueda - "mineral"

Mineral N dynamics in bare and cropped Leucaena leucocephala and Dactyladenia barteri alley cropping systems after the addition of 15Nlabelled leaf residues por Vanlauwe, Bernard, Diels, J., Duchateau, L., Sanginga, N., Merckx, Roel

“…In tropical cropping systems with few external imputs, efficient management of mineral N derived from added organic residues is essential for the proper functioning of the system. …”
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Soil Clay Mineralogies in Relation to Fertility Management: Effect of Soil Clay Mineral Compositions on Potassium Fixation Under Conditions of Wetland Rice Culture por Bajwa, Iqbal

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Genetic variation and diversity of pearl millet [Pennisetum glaucum (L.)] genotypes assessed for millet head miner, Heliocheilus albipunctella resistance, in West Africa por Mohammed, Riyazaddin, Gangashetty, Prakash I., Karimoune, Laouali, Ba, Niango Malick

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Combining organic and mineral fertilizers for integrated soil fertility management in smallholder farming systems of Kenya : Explorations using the crop-soil model FIELD por Tittonell, Pablo A., Corbeels, Marc, Wijk, Mark T. van, Vanlauwe, Bernard, Giller, Kenneth E.

“…1) for 12 yr without fertilizers. Mineral fertilizers are necessary to kick-start soil rehabilitation through hysteretic restoration of biomass productivity and C inputs to the soil.…”
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Effects of organic and mineral fertilizer inputs on maize yield and soil chemical properties in a maize cropping systems in Meru South District, Kenya por Mucheru-Muna, M., Mugendi, DN, Kung'u, J.B., Mugwe, J, Bationo, B. André

“…On average, tithonia treatments (with or without half recommended rate of mineral fertilizer) gave the highest grain yield (5.5 and 5.4 Mg ha?…”
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Beef cow-calf production experiments on the savannas of eastern Colombia: effects of minerals, early weaning, crossbreeding, urea feeding, and pastures on herd production por Stonaker, Howard H., Raun, NS, Gómez Soler, Juvenal

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Assessment of feed resources and determination of mineral status of livestock feed in Meta Robi District,West Shewa zone, Oromia Regional State, Ethiopia por Yadessa, E.

“…Concentrations of most minerals in the soil were above the critical level of plant growth and most macro minerals in the feed were below the requirement of dairy animals while micro minerals were above the requirement of dairy animals except Mn. …”
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Maize water productivity and its relationship to soil properties under integrated cattle manure and mineral-nitrogen fertilizer in a smallholder cropping system por Dunjana, Nothando, Nyamugafata, Philip, Nyamangara, Justice, Mango, Nelson, Gwenzi, Willis

“…This study investigated the effects of cattle manure and mineral‐N fertilizer application on maize (Zea mays L.) water productivity (MWP) on clay and sandy soils in a smallholder farming area of Zimbabwe. …”
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Biological control of the millet head miner Heliocheilus albipunctella in the Sahelian region by augmentative releases of the parasitoid wasp Habrobracon hebetor: effectiveness and farmers perceptions por Ba, Malick N., Baoua, I., N'Diaye, M., Dabiré, C., Sanon, A., Tamò, Manuele

“…On-farm augmentative releases of the parasitoid Habrobracon hebetor (Say) for controlling the millet head miner (MHM) Heliocheilus albipunctella (de Joannis) were tested in Burkina Faso, Mali and Niger from 2007 to 2009. …”
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Effect of processing on the proximate, mineral, and pasting properties of whole flour made from some new plantain and banana hybrids pulp and peel mixture por Adeniji, T.A., Tenkouano, A.

Materias: “…minerals…”
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Postfire nitrogen balance of Mediterranean shrublands: Direct combustion losses versus gaseous and leaching losses from the postfire soil mineral nitrogen flush por Dannenmann, Michael, Díaz Pinés, Eugenio, Kitzler, B., Karhu, K., Tejedor, J., Ambus, P., Parra, A., Sánchez Martin, L., Resco, V., Ramírez, D., Povoas-Guimaraes, L., Willibald, G., Gasche, R., Zechmeister-Boltenstern, S., Kraus, David, Castaldi, S., Vallejo, A., Rubio, A., Rubio, J.M., Butterbach-Bahl, Klaus

“…Maximal leaching losses occurred 2 months after peak soil mineral N concentrations, but remained with 0.1 kg N ha−1 year−1 of minor importance for the postfire N mass balance. 15N stable isotope labelling revealed that 33% of the mineral N produced by fire was incorporated in stable soil N pools, while the remainder was lost. …”
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Utilización de un suplemento mineral orgánico en la alimentación de vacas lecheras Holstein durante la etapa de transición por Almeyda Matías, José, Fernández, Miriam, Gómez Allca, Carlos

Materias: “…Suplementos minerales…”
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Eucalyptus dunnii Maiden plant regeneration via shoot organogenesis on a new basal medium based on the mineral composition of young stump shoots por Oberschelp, Gustavo Pedro Javier, Gonçalves, Antônio Natal, Meneghetti, Eveline Calderan, Graner, Érika Mendes, Almeida, Marcílio de

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Efecto de la frecuencia de quema prescripta sobre la composición mineral de los pastizales en el Nordeste Argentino por Fernández, Juan Alfredo, Schroeder, María Andrea, Goldfarb, Maria Cristina, Bernardis, Aldo Ceferino

Materias: “…Minerals…”
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Dinámica del nitrógeno mineral y la biota edáfica durante la descomposición de enmiendas orgánicas en un ambiente semiárido por Meyer, Jesica Natalia, Frigerio, Karina Laura, Cortes, Marcela Patricia

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Estudio de la absorción mineral en el cultivo hidropónico. Bases para el control automático de la solución nutritiva por Martínez, Pedro F., Roca, Dolors

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Beef cow-calf production experiments on the savannas of eastern Colombia, effects of minerals, early weaning, crossbreeding, urea feeding, and pastures on herd production. por Stonaker, H.H.

Materias: “…Minerales…”
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Beef cow-calf production experiments on the savannas of eastern Colombia, effects of minerals, early weaning, crossbreeding, urea feeding, and pastures on herd production. por Stonaker, H.H.

Materias: “…Minerales…”
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Reducción de dosis de fertilizante mineral fosfatado mediante la inoculación de bacterias solubilizadoras de fosfato en Gossypium hirsutum por Romero Perdomo, Felipe, Bonilla, Ruth

Materias: “…Minerales…”
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Estudios sobre la nutrición mineral del sorgo para grano. X. Eficiencia nutritiva comparativa entre sorgo para grano maíz por Rosolem, C.A, Malavolta, E

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