Resultados de búsqueda - "field experiment"

Temperaturens och den fotosyntetiskt aktiva strålningens effekt på avgång och inlagring av kol på en dikad torvjord por Österlund, Kristian

“…In this bachelor thesis a field experiment was made on drained peat soil with ley, outside Björklinge, Uppsala municipality, Sweden. …”

Påverkas tillväxten i tallbestånd av grot-uttag vid gallring? por Jansson, Markus

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Genetic parameters and genetic trends for growth traits of the Red Maasai sheep and its crosses to Dorper sheep under extensive production system in Kenya por Oyieng, Edwin P., Mrode, Raphael A., Ojango, Julie M.K., Ekine-Dzivenu, Chinyere C., Audho, James, Okeyo Mwai, Ally

“…The Red Maasai are indigenous sheep breeds known for their adaptability in arid and semi-arid environments while the Dorper is known for its good mutton production. A field experiment cross breeding program for the two breeds was set up in 2003 to exploit these traits. …”
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Integrated management practices significantly affect N2O emissions and wheat–maize production at field scale in the North China Plain por Shi, Yeufeng, Wu, W., Meng, F, Zhang, Z., Zheng, L, Wang, D.

“…In the North China Plain, a field experiment was conducted to measure nitrous oxide (N2O) and methane (CH4) fluxes from a typical winter wheat–summer maize rotation system under five integrated agricultural management practices: conventional regime [excessive nitrogen (N) fertilization, flood irrigation, and rotary tillage before wheat sowing; CON], recommended regime 1 (balanced N fertilization, decreased irrigation, and deep plowing before wheat sowing; REC-1), recommended regime 2 (balanced N fertilization, decreased irrigation, and no tillage; REC-2), recommended regime 3 (controlled release N fertilizer, decreased irrigation, and no tillage; REC-3), and no N fertilizer (CK). …”
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Modeling field-scale effects of conservation agriculture practices on soil water balance in the dryland regions of the Yellow River Basin, China por Nangia, Vinay, Du, Jian Tao, Ahmad, Mobin-ud-Din, Yan, Changrong

“…To evaluate the potential of conservation agriculture to improve soil water balance and agricultural productivity, the DSSAT crop model was calibrated using the data of field experiment in Shou Yang County in the semi-arid northeastern part of the ellow River Basin. …”
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Characterization of Phaseolus coccineus interspecific germplasm accessions for disease resistance, grain market class and yield attributes por Mukankusi, Clare Mugisha, Amongi, Winnyfred, Sebuliba, Sulaiman, Musoke, Stephen, Acam, Catherine

“…Artificial inoculum of bean common mosaic virus (BCMV) was applied to the field experiment in 2011a. The morphological (seed type and growth habit) and agronomic attributes (plant vigour, days to physiological maturity; DPM and days to 50% flowering; DF), reaction to occurring diseases and yield performance were monitored. …”
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Effect of different cover crops on C and N cycling in sorghum NT systems por Frasier, Ileana, Quiroga, Alberto Raul, Noellemeyer, Elke

“…In order to study changes in soil carbon, nitrogen and microbial biomass a field experiment (2010 − 2012) was set up with sorghum (Sorghum bicolor Moench.) monoculture and with cover crops. …”
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Nurse plants and seed provenance in the restoration of dry Chaco forests of central Argentina por Venier, P., Ferreras, A.E., Lopez Lauenstein, Diego, Funes, G.

“…We evaluated the effectiveness of two native woody species (Parkinsonia praecox and Larrea divaricata) as nurse plants for Prosopis flexuosa establishment to be used in restoration programs in semiarid Chaco forests of central Argentina. We conducted a field experiment in a degraded site to analyze microclimatic and soil characteristics under the canopy of the nurse species and in bare soil. …”
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Vetch-rye biculture is a sustainable alternative for enhanced nitrogen availability and low leaching losses in a no-till cover crop system por Frasier, Ileana, Noellemeyer, Elke, Amiotti, Nilda Mabel, Quiroga, Alberto Raul

“…The present study compared a pure legume and legume-grass biculture as cover crops for sorghum in their supply of nitrogen (N) to the cash crop and their N leaching losses during fallow. A three-year field experiment under no-till with sorghum (Sorghum bicolor Moench.) as main crop and cover crop treatments (C- control = bare fallow; R-rye Secale cereale L.; V-vetch Vicia villosa sp dasycarpa; VR-vetch-rye biculture) was established with a completely randomized block design (four replicates) in semiarid central Argentina. …”
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Glyphosate Biodegradation Potential in Soil Based on Glycine Oxidase Gene (thiO) from Bradyrhizobium por Hernandez Guijarro, Keren, De Geronimo, Eduardo, Erijman, Leonardo

“…The assay using the designed primers was linear over a very large concentration range of the target and showed high efficiency and specificity. In a field experiment, there was a differential response related to the history of glyphosate use and the native Bradyrhizobium genotypes. …”
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Fertilización potásica de papa (Solanum tuberosum L.) en cultivo bajo riego por Lucero, J.C, Silenzi, J.C, Verdoljak, M, Andreoli, C.

“…During October 1979 — March 1980 measurements of yield, tuber quality and starch content were made in a field experiment on irrigated soils of the Lower Valley of the Colorado River (Province of Buenos Aires, Argentina). …”
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Enmiendas y microorganismos antagonistas para el manejo de Pseudomonas solanacearum en tomate por Díaz B, J.U., Bustamante Rojas, Elkin, Sánchez G, V., Schlonvoigt, A.

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Mosstäcket ökar tillväxten hos Vaccinium myrtillus por Lodin , Isak, Blomquist, Mimmi

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Appraisal of complementarity of subsurface drip fertigation and conservation agriculture for physiological performance and water economy of maize por Patra, K., Parihar, Chiter Mal, Nayak, Harisankar, Rana, B., Sena, Dipaka Ranjan, Anand, A., Reddy, K. S., Chowdhury, M., Pandey, R., Kumar, A., Singh, L. K., Ghatala, M. K., Sidhu, H. S., Jat, Mangi Lal

“…Therefore, we conducted a two-year field experiment in maize, under an ongoing CA-based maize-wheat system, to evaluate the complementarity of CA with SSD irrigation through two technological interventions–– CA+ (residue retained CA + SSD), PCA+ (partial CA without residue + SSD) – at different N rates (0, 120 and 150 kg N ha-1) in comparison to traditional furrow irrigated (FI) CA and conventional tillage (CT) at 120 kg N ha-1. …”
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Combining sub-surface fertigation with conservation agriculture in intensively irrigated rice under rice-wheat system can be an option for sustainably improving water and nitrogen... por Rana, B., Parihar, Chiter Mal, Jat, M. L., Patra, K., Nayak, H. S., Reddy, K. S., Sarkar, A., Anand, A., Naguib, W., Gupta, N., Sena, Dipaka Ranjan, Sidhu, H. S., Singh, R., Abdallah, Ahmed M.

“…Method: A two-year field experiment was conducted to assess the effects of medium-term CA and the combination of CA with SSD (CA+) at three levels of N (0%, 75%, and 100% of the recommended dose), in comparison to PTR using recommended dose of nitrogen-RDN (120 kg N ha-1). …”
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SNP based trait characterization detects genetically important and stable multiple stress tolerance rice genotypes in salt-stress environments por Debsharma, Sanjoy K., Rahman, Mohammad Akhlasur, Quddus, Mohammad Ruhul, Khatun, Hasina, Disha, Ribed F., Roy, Popy R., Ahmed, Sharif, El-Sharnouby, Mohamed, Iftekharuddaula, Khandakar Md., Aloufi, Salman, Alzuaibr, Fahad M., Alqurashi, Mohammed, Sakran, Mohamed I., Kabir, Mohammad Shahjahan

“…To evaluate yield efficiency and stability of 18 rice breeding lines, two years of field experiment data were analyzed using AMMI (additive main effect and multiplicative interaction) and GGE (Genotype, Genotype Environment) biplot analysis. …”
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Performance of cassava planting materials produced using the "Semi Autotrophic Hydroponic" technology in the laboratory and across locations in the Democratic Republic of Congo por Binzunga, M.M.

“…Experiment 2, following a similar design, investigated the performance of three genotypes (IB961089A, IBA070520, and IBA980555) under single substrates (K, V, and P) and their combinations (K25P75, V25P75, and V10P90). The field experiment in Mulungu and Kiliba utilized SAH-derived plantlets employing a 4 x 4 split-plot design. …”
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Evaluación de un modelo de simulación de crecimiento aplicado a genotipos de soya (Glycine max. L. Merr) bajo condiciones tropicales por Rey, L, López, Y., Jaramillo Valencia, Angélica M., White, Jeffrey W.

“…(L) Merr) Soygro V5.42, was tested under tropical conditions, using experimental data from a field experiment in which two genotypes (Soyica P-33 and Soyica Ariari-1) with different growth habit, were growth under two plant densities, at the Palmira Research Centre of the Corporación Colombiana de Investigación Agropecuaria, located at 3º32Ž north latitude and 76º17Ž west longitude, on a Mollison soil classified as Isohyperterthermic Aquic Hapludoll. …”
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Carbon Dioxide and Nitrous Oxide Emissions from a Typical Sugarcane Soil in the Cauca River Valley, Colombia por Valencia-Molina, Manuel C., Chalco Vera, Jorge Elías, Loaiza, Sandra, Trujillo, Catalina, Munera, Bryan, Castro-Franco, Mauricio, Silva-Parra, Amanda, Chirinda, Ngonidzashe, Muñoz-Arboleda, Fernando

“…For this purpose, a field experiment was established in a typic haplustert soil cropped with sugarcane. …”
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Service crops improve a degraded monoculture system by changing common bean rhizospheric soil microbiota and reducing soil-borne fungal diseases por Aban, Carla Luciana, Verdenelli, Romina Aylén, Vargas Gil, Silvina, Huidobro, Dina Jorgelina, Meriles, José Manuel, Perez Brandan, Carolina

“…The aim of this study was to analyze in a six-year field experiment the effect of Brachiaria brizantha (perennial tropical grass) and Zea mays as service crops in a degraded common bean monoculture system in northwest Argentina. …”
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