Resultados de búsqueda - "marginalism"

Experimentos demostrativos como metodología de transferencia de tecnología agronómica en un marco de investigación participativa por Rojas Meza, María Elena, Chura Chuquija, Julián

“…The learning of the participants showed improvement in relation to the evaluation performed before each course, obtaining average grades of 12.71; 17 and 15.29. The marginal analysis indicated that the greatest benefits were achieved in the community of Potao - Barranca, obtaining benefits of S/ 2,546.25 per hectare.…”
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Lepidium Campestre : en ekonomisk analys av fältkrassing por Ektander, Arvid, Pettersson, Kristian

Potencial agronómico, productivo, nutricional y económico de cuatro genotipos de maíz forrajero en el valle de Chancay, Perú por Maguiña Maza, Rufino Máximo, Francisco Perez, Sharon Carolyn, Pando Cárdenas, Gerardo Luis, Sessarego Dávila, Emmanuel, Chagray Ameri, Néstor Humberto, Pujada Abad, Hilario Noberto, Airahuacho Bautista, Félix Esteban

“…El objetivo de la investigación fue comparar las características agronómicas, productivas, nutricionales y económicas de cuatro genotipos de maíz forrajero: INIA 617 Chuska, M28T Marginal 28 Tropical, Atlas 777 e INIA 619 Megahíbrido, en el valle de Chancay, Perú. …”
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Evaluación del rendimiento del maíz forrajero (Zea mays L.) intercalado con frijol (Phaseolus vulgaris L.) en el distrito de Molinopampa, Perú por Mori Servan, Diana, Goñas Goñas, Malluri, García Rosero, Ligia M., Condori Apfata, Jorge A., Pinedo Canlla, Coralli, Yalta Chappa, Merbelita, Santillan Gomez, Homar, Vigo, Carmen N., Banda, Duber, Gosgot Ángeles, Wildor

“…Se aplicó un diseño factorial con 11 tratamientos, combinando tres variedades de maíz (Chuska INIA, Marginal 28T, y Advanta) y de frijol (Vidillo y Wasca). …”
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Wood anatomy, fire wounds and dendrochronological potential of Prosopis pugionata Burkart (Fabaceae) in arid Argentine Chaco por Bravo, Sandra, Bogino, Stella Marys, Leiva, Marta, Lepiscopo, Martín, Cendoya, María Alicia, Kunst, Carlos Roberto, Biurrun, Fernando Noe

“…P. pugionatais a diffuse and semi-ring-porous hardwood species with growth rings delimited by marginal parenchyma bands. The bark is longitudinally fissured, with an average thickness of 0.19 cm, and a scarce increase with age. …”
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Environmental quality and ecotoxicity of sediments from the lower Salado River basin (Santa Fe, Argentina) on amphibian larvae por Peluso, Julieta, Aronzon, Carolina, Martínez Chehda, Agostina, Cuzziol Boccioni, Ana Paula, Peltzer, Paola, De Geronimo, Eduardo, Aparicio, Virginia Carolina, González, Florencia, Valenzuela, Lautaro, Lajmanovich, Rafael

“…The water quality index showed a marginal quality for all sites, influenced mainly by low dissolved oxygen, high total suspended solid, phosphate, nitrite, conductivity, Pb, Cr and Cu levels. …”
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Is closing the agricultural yield gap a “risky” endeavor? por Gatti, Nicolas, Cecil, Michael, Baylis, Kathy, Estes, Lyndon, Blekking, Jordan, Heckelei, Thomas, Vergopolan, Noemi, Evans, Tom

“…We use a crop model to simulate district-level marginal effects of fertilizer and seed maturity choice on the mean and variance of expected yield and profit under all-weather outcomes for each district for the past 30 years. …”
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Trend-cycles of vegetation dynamics as a tool for land degradation assessment and monitoring por Easdale, Marcos Horacio, Farina, Clara Maria, Hara, Sofía, Perez Leon, Natalia Jesica, Umaña, Fernando, Tittonell, Pablo Adrian, Bruzzone, Octavio Augusto

“…Contrary to what is generally seen in the literature, monotonic patterns and particularly decreasing trend-cycles were marginally recorded in the last 18 years of NDVI records in Patagonia.Instead, the greater proportion of the area was classified as initial or advanced recovery and initial relapsing patterns, which refer to phases of a cyclic behaviour. …”
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Phenotypic characterization of immune cells in fetal tissues of cattle immunized and challenged with Neospora caninum por Rivera Maldonado, Juan E., Delay, Josepha, Hecker, Yanina, Monterubbianesi, María Gloria, Canton, German Jose, Campero, Carlos Manuel, Odeon, Anselmo Carlos, Moore, Prando Dadin

“…CD20+ cells appeared as a marginal group, in some cases, with a range between 10 and 25%. …”
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The Ixodes ricinus complex (Acari: Ixodidae) in the Southern Cone of America: Ixodes pararicinus, Ixodes aragaoi, and Ixodes sp. cf. I. affinis por Saracho Bottero, Maria Noelia, Venzal, José Manuel, Tarragona, Evelina Luisa, Thompson, Carolina Soledad, Mangold, Atilio Jose, Beati, Lorenza, Guglielmone, Alberto, Nava, Santiago

“…I. affinis, the punctations on the central field and along the median marginal groove of the scutum are clearly larger than in the males of I. aragaoi and I. pararicinus, while the punctations of I. aragaoi are larger but less numerous than in I. pararicinus. …”
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First Report of Anthracnose of Olive Fruit Caused by Colletotrichum theobromicola in Argentina por Bernanrdi Lima, Nelson, Pastor, Silvina Estela, Maza, Claudia Elizabeth, Conforto, Erica Cinthia, Vargas Gil, Silvina, Roca, Monica

“…Colonies presented mycelium that were flat with a white margin, and gray aerial mycelium. Conidia were hyaline, aseptate, straight, subcylindrical and clavate, (12.3 to) 13.9 to 19.1 (to 20.57) × (3.5 to) 4.1 to 5.61 (to 6.1) µm, mean ± SD = 14.8 ± 0.2 × 4.8 ± 0.1 µm, length/width ratio = 3.1 (n = 50). …”
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Water productivity and net profit of high-density olive orchards in San Juan, Argentina por Vita Serman, Facundo, Orgaz, Francisco, Starobinsky, Gabriela, Capraro, Flavio, Fereres Castiel, Elías

“…The maximum oil production (ca = 3080 kg oil ha-1) was obtained with 860 mm of irrigation. The marginal WP reached a maximum (5.9 kg oil ha-1 mm-1) at 550 mm of irrigation and declined thereafter, reaching zero at 860 mm. …”
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Análisis de alternativas de producción de semilla vegetativa de Arracacia xanthorrhiza Bancroft en Tolima, Colombia por Atencio Solano, Liliana Margarita, Villamil Carvajal, Jorge Enrique, Garnica Montaña, Johanna Paola, Martinez Reina, Antonio Maria

“…Los resultados muestran que el uso de semilla de calidad permite obtener mayor producción de semillas (251.559 unidad ha-1) y raíces tuberosas (25.875 kg ha-1), siendo superior a la tecnología local en 14% y 28% respectivamente; de esta forma, el productor de arracacha adquiere mayor eficiencia económica al obtener menor costo unitario por kilo producido y mejor ingreso neto con una tasa de retorno marginal de 316,45. Los resultados alcanzados son de utilidad para agricultores, empresas y entidades que deseen producir semilla de calidad y apoyen el sistema pro ductivo de arracacha en Colombia.…”
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En farmakokinetisk pilotstudie av olika beredningar av bensylpenicillin intramuskulärt till häst por Lindberg, Julia

“…Although penicillin has a wide safety margin and is considered to possess a good tolerance, reactions due to side effects are sometimes encountered, which commonly is named "penicillin-shock". …”
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Illegal rovdjursjakt por Forslund, Johanna

“…In accordance with economic theory the benefits and costs of illegal hunting are compared and thus the optimal choice is determined where marginal costs and benefits are equal. The model has been tied to reality through identification and discussion of the estimates the parameters of the model are likely to adopt. …”
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Disciplining coal resistance : the dynamics of violence and power in disciplining the resistance against the Hambach coal mine in Germany por Schumann, Vera

“…It is operationalized as structural violence which is mostly experienced as marginalization, fragmentation and surveillance based on an entanglement of RWE with the local government. …”

Energiewendes påverkan på det nordiska kraftsystemet por Kalin , Erik

“…By subtracting the intermittent production, the so called residual load is estimated and by regressing the residual load on the actual prices, it is possible to get a fairly accurate estimate of the marginal effect of one extra unit produced or consumed. …”
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Interactions between some plant-parasitic nematodes and Rhizoctonia solani in potato fields por Björsell, Pia

“…The severity of R. solani was greater on plants graded in the middle of the patches compared to those in the margins. The interaction between Trichodoridae and R. solani, as well as the interaction between Globodera spp. and R. solani, were both significant. …”

The role of legumes in the sustainable intensification of African smallholder agriculture: lessons learnt and challenges for the future por Vanlauwe, Bernard, Hungria, M., Kanampiu, F.K., Giller, Kenneth E.

“…While most cropping systems allow for the integration of legumes, intercropped legumes provide only marginal benefits to associated crops. Important rotational benefits have been shown for most grain legumes though those with the highest N accumulation and lowest N harvest index appear to demonstrate higher residual benefits. …”
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Feed the future-usaid kenya accelerated value chain. Development program. Potato value chain. Six-year final report por International Potato Center

“…This increase in value of sales was also accompanied by increases in gross margin in phase 1 from a baseline 721 USD/ha to 1,680 USD/ha, demonstrating that the increase was not solely due to increases in production costs but also to increases in farmer profits. …”
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