Resultados de búsqueda - tetera~

Parásitos del nemátodo Ditylenchus dipsaci Kuhn (1857) Filipjev (1934) en las principales plantas cultivadas en clima frío en Colombia. por Hurtado C, Fanny Aurora, Nieto Páez, Luis Eduardo, Perdomo Padilla, Abraham

“…Se evaluaron 20 especies de plantas cultivadas que se sembraron en materas con suelo libre de nemátodos. Una vez emergidas las plántulas se inocularon con los niveles de población de 0, 100, 500 y 2500 especímenes de D. dipsaci por cada 500 cc de suelo. …”
Enlace del recurso

Comportamiento de algunas cepas de Rhizobium japonicum en tres variedades de soya (Glycine max (L.) Merr). por Varela González, R.A.

“…Se usó medio agar para plantulas y otro experimento en materas con suelos series perales (Ibagué) y Dindalito (Espinal). …”
Enlace del recurso

What does gender yield gap tell us about smallholder farming in developing countries? por Nchanji, Eileen B., Collins, Odhiambo A., Katungi, Enid, Nduguru, Agness, Kabungo, Catherine, Njuguna, Esther M., Ojiewo, Christopher Ochieng

“…Our study finds that females comprised 25 percent of the sample, had 6 percent lower productivity, provided 64.70 percent on-farm labour and had 0.32 hectares less land compared to males, ceteris paribus. Access to improved varieties contributed to a 35.4 percent improved productivity compared to growing indigenous/local varieties. …”
Enlace del recurso

Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility, nitrogen balance, rumen fermentation, microbiota and methane emissions in go... por Xiumin Zhang, Medrano, Rodolfo F., Min Wang, Beauchemin, Karen A., Zhiyuan Ma, Rong Wang, Jiangnan Wen, Lukuyu, Ben A., Zhiliang Tan

“…The treatments were: control (untreated rice straw, no added corn oil), rice straw pretreated with urea and nitrate (34 and 4.7 g/kg of rice straw on a dry matter [DM] basis, respectively, UN), and UN diet supplemented with corn oil (15 g/kg soybean and 15 g/kg corn were replaced by 30 g/kg corn oil, DM basis, UNCO).Compared with control, UN increased neutral detergent fiber (NDF) digestibility (P < 0.001) and copies of protozoa (P < 0.001) and R. albus (P < 0.05) in the rumen, but decreased N retention (-21.2%, P < 0.001), dissolved hydrogen concentration (-22.8%, P < 0.001), molar proportion of butyrate (-18.2%, P < 0.05), (acetate + butyrate) to propionate ratio (P < 0.05) and enteric CH4 emissions (-10.2%, P < 0.05). …”
Enlace del recurso

Assessing the mitigation potential of nutrient blocks made of tropical trees and legumes por Mazabel, Johanna, Molina Botero, Isabel Cristina, Hincapie, Alexander, Hleap Zapata, Jose Igor, Arango, Jacobo

“…The nutritional blocks, prepared with tropical tree fruits, legume leaves and pods, contained in average 3.9 times more crude protein than the control block and the grass alone (314, 83.2 and 78.1 g CP kg-1DM, respectively), and the average of neutral detergent fiber content was lower in all blocks than in the pasture alone (366 vs. 664 g NDF kg-1DM). …”
Enlace del recurso

The utilization of teff (Eragrostis tef) straw by sheep fed supplementary forage legumes with or without either crushed maize grain or wheat bran por Nsahlai, I.V., Umunna, N.N., Bonsi, M.L.K.

“…Supplementation with Fs alone increased the rate of degradation of TS by 50 to 142 percent, the rate of passage of particles (kp), the intake of TS, dry matter (DM), organic matter (OM), nitrogen (N) and neutral detergent fibre (NDF); had no effect on the digestibility of DM, OM, teff and NDF; increased faecal N. urinary N, N retention, urinary allantoin, total and microbial PD, microbial N and the efficiency of microbial N synthesis. …”
Enlace del recurso

Crop productivity and the global livestock sector: Implications for land use change and greenhouse gas emissions por Havlík, Petr, Valin, Hugo, Mosnier, Aline, Obersteiner, Michael, Baker, J.S., Herrero, Mario, Rufino, Mariana C., Schmid, Erwin

“…The price reductions generated by crop yield increases should, ceteris paribus, encourage farmers to replace some of the grass in ruminant rations with crops. …”
Enlace del recurso

Sweetpotato weevil resistance in sub-saharan Africa: A viable mechanism for reducing Cylas damage. por Otema, A.M., Muyinza, H., Rees, D., Farman, D., Ssemakula, G.N., Mwanga, Robert O.M., Stevenson, P.C.

“…The compounds were extracted from the roots, analysed and synthetic derivatives used to conduct toxicity & deterrence tests. Different concentrations (0.001, 0.01, 0.1mg/ml) of synthetic derivatives of the compounds were applied to the root surfaces of the susceptible variety (NASPOT 1) and showed that weevil species from both Uganda and Malawi fed less and laid fewer eggs on the treated roots compared to the untreated ones confirming the activity of the compounds against weevils. …”
Enlace del recurso

Cowpea and groundnut haulms fodder trading and its lessons for multidimensional cowpea improvement for mixed crop livestock systems in West Africa por Samireddypalle, A., Boukar, O., Grings, Elaine E., Fatokun, C.A., Kodukula, P., Devulapalli, R., Okike, Iheanacho, Blümmel, Michael

“…Trade-offs between grain yield and haulm fodder quality traits were largely absent and haulm acid detergent lignin and grain yield were even inversely correlated (r = -0.28, P = 0.05), that is high grain yielders had decreased haulm lignin. …”
Enlace del recurso

Contenido de antioxidantes totales y clorofila en lechuga bajo fertilización orgánica con compost por Carnicer, Sebastián, Shindoi, Mauro Masakichi Jere, Delfino, Mario Raúl, Leconte, María Corina

Enlace del recurso

The effects of feeding low levels of concentrate to early lactating dairy cows por Llopis Palomares, Adriana

“…The concentrate was based on by-products with the peculiarity of being rich in neutral detergent fibre (NDF) (88%DM, 179g/Kg DM CP, 67.4 g/Kg DM Fat, 328 g/Kg DM NDF, 53.6 g/Kg DM Ash, 32.5 g/Kg DM Starch and 13.2 MJ/Kg DM ME). …”

Micropropagación en piña (Ananas comosus (L.) Merr) cultivar MD-2 por Zamora Jarquin, Andrea María, Juárez Gámez, Donald Alonso

“…Las vitroplantas provenientes de plantas enteras presentaron 100% de sobrevivencia. El promedio de espinas fue más acentuado en los tratamientos de plantas partidas longitudinalmente. …”
Enlace del recurso
Enlace del recurso

Contenido y digestibilidad in vitro de la fibra de láminas de Chloris gayana Kunth en relación a la edad y tamaño foliar por Avila, Roxana Edith

Enlace del recurso
Enlace del recurso

Economic impact of peste des petits ruminants outbreak and vaccination cost in northwest Ethiopia por Jemberu, Wudu T., Knight-Jones, Theodore J.D., Gebru, A., Mekonnen, S.A., Yirga, A., Sibhatu, D., Rushton, J.

“…This study was conducted to assess the economic impact and costs of PPR vaccination in Metema district, northwest Ethiopia. The economic impact of the disease was estimated from outbreak investigation and interviews of 233 smallholder farmers in PPR affected sub-districts. …”
Enlace del recurso

Medicion de calidad en semillas de Andropogon gayanus por Sánchez, M., Ferguson, John E.

“…Brief descriptions are made on techniques for determing seed viability with tetrazolium, moisture content and combined quality indexes. …”
Enlace del recurso

Forage Accumulation and Quality of Three Contrasting Ecotypes of Tall Fescue (Schedonorus arundinaceus) Managed under Frequent Defoliation por Mattera, Juan, Scheneiter, Jorge Omar, Cattoni, María Isabel, Pacente, Ezequiel Martin, Barletta, Pablo Fernando, Bertin, Oscar Dario

“…A sample (0.250 g) was taken to analyze in vitro dry matter digestibility (IVDIG), crude protein (CP), neutral detergent fiber (NDF) and NDF digestibility (NDFDIG). …”
Enlace del recurso
Enlace del recurso

Capacidad de retención de agua por el dosel de los arbustos en la región árida-semiárida central de Argentina = Water storage capacity of shrub canopy in the central arid-semiarid... por Alvarez Redondo, Mónica, Adema, Edgardo Osvaldo

“…La capacidad máxima de retención de agua sobre plantas enteras se determinó mediante inmersión por diferencia peso mojado (PM) – peso fresco (PF) y se expresó en porcentaje respecto de la biomasa. …”
Enlace del recurso
Enlace del recurso

Efecto de las sales solubles del suelo sobre la germinación y crecimiento de tres variedades de algodonero (Gossypium hirsutum L.). por Castillo Pinzón, Luis Ernesto

“…De cada variedad se sembraron 50 semillas en materas con suelo que contenía sales solubles, procedente de una finca de un municipio del Atlántico, a los 5 días de la siembra se contaron las semillas germinadas y se escogieron luego las 2 plantas más vigorosas para medirles altura a los 10, 20, 30, 40 y 50 días después de germinadas, por último se evaluó la producción de materia fresca y seca. …”
Enlace del recurso

Kvalitetssäkring av hushållsnära avloppsfraktioner por Giers, Helena

“…One problem is that the food industry is sceptical towards recirculation due to the risks that products from sewage systems may contain pathogens, heavy metals and unwanted chemical compounds, e.g. medical residues or detergents. Previous studies indicate that the food industry in general agrees upon the importance of recycling plant nutrients, but for the industry to accept this recycling the products must be quality assured. …”
Enlace del recurso

Caracterización del consumo y comercialización de leña y carbón en el Municipio Villa Carlos Fonseca Managua, III Región por Ramírez Araica, Rosa Margarita, Downs Galeano, María Lilliam

“…En la comercialización, la actividad leñera no es tan fuerte como la carbonera. Ambas constituyen un medio de ingreso adicional importante para el productor, principalmente en época seca, prefiriendo para la producción de carbón el Madroño (Calycophyllum candidissimum), el Quebracho (Lisyloma sp.) y el Guácimo de molenillo (Luehea cándida). …”
Enlace del recurso
Enlace del recurso