Resultados de búsqueda - "field experiment"

Integrated weed management using planting pattern, cultivar, and herbicide in dry-seeded rice in northwest India por Mahajan, Gulshan, Poonia, Vikas, Chauhan, Bhagirath S.

Materias: “…field experimentation…”
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Confirmation of chloride deficiency as the cause of leaf spotting in durum wheat grown in the Australian northern grains region por Schwenke, G.D., Simpfendorfer, S.R., Collard, B. C. Y.

“…Nil Cl– also delayed flowering, reduced biomass, decreased grain size, and depressed grain yield in most durum and bread wheat varieties. In field experiments, additions of Cl– fertiliser as KCl at sowing provided no biomass or yield response from a range of wheat varieties, probably because the plants accessed sufficient Cl– from below 0.9 m depth in the soil. …”
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Genetic analysis of drought resistance in rice by molecular markers: association between secondary traits and field performance por Babu, R. Chandra, Nguyen, Bay D., Chamarerk, Varapong, Shanmugasundaram, P., Chezhian, P., Jeyaprakash, P., Ganesh, S.K., Palchamy, A., Sadasivam, S., Sarkarung, S., Wade, L.J., Nguyen, Henry T.

“…The DH lines were subjected to water stress before anthesis in three field experiments at two locations. The DH lines showed significant variation for plant water stress indicators, phenology, plant biomass, yield and yield components under irrigated control and water stress. …”
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Tomato crop response to short-duration legume green manures in tropical vegetable systems por Tho¨nnissen, Carmen, Midmore, David J., Ladha, Jagdish K., Holmer, Robert J., Schmidhalter, Urs

“…The feasibility of meeting N needs of tomato (Lycopersicon esculentum Mill.) with GM was studied in six field experiments at three locations in major vegetable growing areas of Taiwan and the Philippines between 1993 and 1995. …”
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Scaling Drought And Flood-Tolerant Rice Varieties, Good Agricultural Practices, And Pest And Disease Management: Insights And Lessons Learned From 2022 To 2025 por Suh, Neville Ndohnwi, Dolo, Minindou, Dossou Yovo, Elliott Ronald

“…Presentations focused on varietal improvement, production techniques, farmers’ field experiences, and persistent constraints, including seed cold-storage limitations, the mineral-fertilizer dependence of hybrids, and gaps in agroecological integration. …”
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Effect of drought on Oryza glaberrima rice accessions and Oriza glaberrima derived-lines por Ndjiondjop, Marie-Noel, Seck, P.A., Lorieux, Mathias, Futakuchi, K., Yao, KN, Djedatin, G.L., Sow, ME, Bocco, R., Cisse, F., Fatondji, B

“…Rice varieties response to drought has been extensively studied and many lines have been released, but identifying new tolerant lines is still a challenge for scientists due to the complexity and the specificity of this constraint over environments. Three sets of field experiments were conducted between 2006 and 2008 at Africa Rice Center research station, Togoudo, Benin to evaluate the effect of drought on some traits of rice (Oryza sp.). …”
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Nitrous oxide emissions in Midwest US maize production vary widely with band-injected N fertilizer rates, timing and nitrapyrin presence por Burzaco JP, Smith, D.R., Vyn TJ

“…Our research objectives were to (i) assess the impacts of urea–ammonium nitrate (UAN) management practices (timing, rate and nitrification inhibitor) and environmental variables on growing-season N2O fluxes and (ii) identify UAN treatment combinations that both reduce N2O emissions and optimize maize productivity. Field experiments near West Lafayette, Indiana in 2010 and 2011 examined three N rates (0, 90 and 180 kg N ha−1), two timings (pre-emergence and side-dress) and presence or absence of nitrapyrin. …”
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Domestication of payments for ecosystem services: new evidence from the Andes por Drucker, Adam G., Narloch, U., Pascual, U., Soto, J.L., Pinto, M., Midler, E., Valdivia, E., Rojas, W.

Materias: “…field experimentation…”
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Combined application of biofertilizers and inorganic nutrients improves sweet potato yields por Mukhongo, Ruth Wilhem, Tumuhairwe, J.B., Ebanyat, Peter, AbdelGadir, Abdel Aziz H., Thuita, Moses N., Masso, C.

“…Sweet potato [Ipomoea batatas (L) Lam] yields currently stand at 4.5 t ha−1 on smallholder farms in Uganda, despite the attainable yield (45–48 t ha−1) of NASPOT 11 cultivar comparable to the potential yield (45 t ha−1) in sub-Saharan Africa (SSA). On-farm field experiments were conducted for two seasons in the Mt Elgon High Farmlands and Lake Victoria Crescent agro-ecological zones in Uganda to determine the potential of biofertilizers, specifically arbuscular mycorrhizal fungi (AMF), to increase sweet potato yields (NASPOT 11 cultivar). …”
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Genotype by environment effects on promiscuous nodulation in soybean (Glycine max L. Merrill) por Agoyi, E.E., Odong, Thomas L., Tumuhairwe, J.B., Chigeza, G., Diers, B.W.

“…Such cultivars are termed “promiscuous cultivars.” Field experiments were conducted in six locations in Uganda for two seasons, to investigate the extent of environmental influences on the nodulation ability of promiscuous soybean genotypes. …”
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Growth and distribution of maize roots under nitrogen fertilization in plinthite soil por Oikeh, S., Kling, J., Horst, W., Chude, V., Carsky, R.J.

“…To improve efficiency of soil N and water use in the savanna, maize (Zea mays L.) cultivars with improved root systems are required. Two rainfed field experiments were conducted in Samaru, Nigeria in the 1993 and 1994 growing seasons with five maize cultivars under various rates of nitrogen fertilizer. …”
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Phosphorus use efficiency and nitrogen balance of cowpea breeding lines in a low P soil of the derived savanna zone in West Africa por Sanginga, N., Lyasse, O., Singh, B.

“…Differences in growth, nodulation and arbuscular mycorrhizal fungi (AMF) root infection among recent cowpea breeding lines from IITA were examined at low and high P levels in pot (94 lines) and field experiments (43 lines) at Fashola in the derived savanna zone of Nigeria. …”
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A spatial framework for ex-ante impact assessment of agricultural technologies por Andrade, J.F., Edreira, J.I.R., Farrow, A., Loon, Marloes P. van, Craufurd, Peter Q., Rurinda, J., Zingore, S., Chamberlin, Jordan, Claessens, Lieven, Adewopo, Julius, Ittersum, Martin K. van, Cassman, Kenneth G., Grassini, P.

“…Traditional agricultural research and extension relies on replicated field experiments, on-farm trials, and demonstration plots to evaluate and adapt agronomic technologies that aim to increase productivity, reduce risk, and protect the environment for a given biophysical and socio-economic context. …”
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Effects of the antiparastic moxidectin on non target organisms por García, Andrés, Eichberg, Carsten, Diekötter, Tim, Donath, Tobias W.

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Evaluation of Phlebiopsis gigantea and Pseudomonas spp. for biocontrol of Heterobasidion spp. in Norway spruce por Gžibovska, Zelma

“…Therefore Pseudomonas spp. bacteria should be monitored in full scale field experiments before it can be considered as a potential alternative to P. gigantea in terms of biological stump control.…”
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Impact of N fertilization on subsoil properties por Schön, Martina

“…Soils of three Swedish long-term field experiments (Fors, Kungsängen and Örja) were sampled to a depth of 0.40 m and analyzed. …”
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Removal of transgenes and Evaluation of yield penalties in genome edited bacterial blight resistant rice varieties por Loo, Eliza P.I., Huguet‐Tapia, José C., Selvaraj, Michael, Stiebner, Melissa, Killing, Britta, Buchholzer, Marcel, Schepler‐Luu, Van, Hartwig, Thomas, Valdéz Gutierrez, Sandra P., Rast‐Somssich, Madlen I., Balahadia, Christian Paolo, Slamet‐Loedin, Inez H., Oliva, Ricardo, Szurek, Boris, Tohme, Joe, Chavarriaga, Paul, White, Frank F., Yang, Bing, Frommer, Wolf B.

“…Complete genome reference sequences for the parental lines IR64, Ciherang‐Sub1, and Komboka are provided. In the field experiments, the GE'd lines did not show performance defects. …”
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Oil and protein concentration and fatty acid composition of chia (Salvia hispanica L.) as affected by environmental conditions por Perez Brandan, Jimena María, Izquierdo, Natalia Gabriela, Acreche, Martin Moises

“…The objective was to determine the effect of environmental conditions on oil and protein concentrations and the fatty acid profile of chia grains. Two field experiments were conducted in Salta (24°53′32″S, 65°82′26″W, Argentina) including two chia populations (white-seeds and mixed-seeds) and 3–4 sowing dates (depending on the season) that generated variations in temperature and radiation during grain filling. …”
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Green bridge crops to manage corn nitrogen nutrition in the Southeastern Argentinean Pampas por Crespo, Cecilia, Corral, Raúl Alejandro, Diez, Santiago, Delgado, Santiago Germán, Dominguez, Germán, Agostini, Maria De Los Angeles, Cendoya, María Gabriela, Sainz Rozas, Hernan Rene, Garcia, Gisela Vanesa, Studdert, Guillermo

“…(NF: 0 and 120 kg N ha−1) on soil N availability, and corn N uptake and yield. Three field experiments were carried out at the Southeastern Argentinean Pampas in 2012–2013, 2013–2014, and 2014–2015 on an Argiudoll. …”
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Flexible foraging decisions made by workers of the social wasp Vespula germanica (Hymenoptera: Vespidae) in response to different resources: influence of ontogenetic shifts and col... por Mattiacci, Analia, Masciocchi, Maite, Corley, Juan Carlos

“…We carried both laboratory and field experiments to confront worker wasps to a short-term resource switch between either protein or carbohydrate-based foods. …”
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