Resultados de búsqueda - "field experiment"

Internal displacement and the promotion of agricultural intensification in Nigeria: Experimental evidence from a fragile setting por Misra, Rewa S., Bloem, Jeffrey R., Ambler, Kate, Wagner, Julia, Amare, Mulubrhan

“…We conduct a field experiment testing information and price discounts on the adoption of a bundle of nutritious and climate-smart agricultural technologies designed to promote agricultural intensification in a fragile setting hosting many internally displaced people (IDPs). …”
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Breadwinner role and economic decision-making: Experimental evidence from Kenya por Vitellozzi, Sveva, Savadori, Lucia, Davis, Kristin E., Azzarri, Carlo, Kinuthia, Dickson, Ronzani, Piero

“…Using a lab-in-the-field experiment among 400 smallholder farmers in Vihiga County, we test how psychological and social pressures associated with being the breadwinner of the family influence decision-making in both individual work choices and collective decisions. …”
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Knowledge, attitude and practices used in the control of Striga in maize by smallholder farmers of western Kenya por Nambafu, G.N., Onwonga, R.N., Karuku, G.N., Ariga, E.S., Vanlauwe, Bernard, Roing de Nowina, K.

“…A semi structured, open and closed ended questionnaire was administered leading to field experiment. Besides village meetings (39.2%), farmers got informed on farming methods under Striga weed farms and its control technologies through neighbours (2.5%), workshops and trainings (5.0%), field schools (3.7%), media (7.5%) and extension agents (10.8%). …”
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Reduce pests, enhance production: benefits of intercropping at high densities for okra farmers in Cameroon por Singh, A., Weisser, W.W., Hanna, R., Houmgny, R., Zytynska, S.E.

“…Dominant okra pests include cotton aphids, leaf beetles and whiteflies. In a field experiment, we intercropped okra with maize and bean in different combinations (okra monoculture, okra–bean, okra–maize and okra–bean–maize) and altered plant densities (high and low) to test for the effects of diversity, crop identity and planting distances on okra pests, their predators and yield. …”
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Host plant resistance and tolerance of Musa landraces and hybrids to nematode infestation por Dochez, C., Speijer, P.R., Schutter, B. de, Dubois, T., Tenkouano, A., Waele, D. de, Ortíz, R.

“…A field experiment was established in the humid forest of southeastern Nigeria to assess host plant response to nematodes. …”
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Goal-setting and volitional behavioural change: Results from a school meals intervention with vitamin-A biofortified sweetpotato in Nigeria por Lagerkvist, Carl Johan, Okello, J.J., Adekambi, S., Kwikiriza, N., Abidin, P.E., Carey, E.E.

“…A set of 556 randomly selected children aged 7–12 in Osun state, Nigeria, participated in an four-week intervention and field experiment in which a meal based on orange-fleshed sweetpotato, rich in pro-vitamin A, was introduced on five occasions as a complement to the existing school meal. …”
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Studie av rottickans S-form i ett röjningsbestånd av gran por Östlund, Andreas

“…In addition, the effects of Rotstop® application on the stumps were investigated. A field experiment was created by cutting 90 stumps with a diameter ranging between 2.0 and 13.9 centimeters, and the material was then divided into three diameter classes. …”
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Efficacy of fiber bands impregnated with Beauveria brongniartii cultures against the Asian longhorned beetle, Anoplophora glabripennis (Coleoptera: Cerambycidae) por Dubois, T., Li, Z., Jiafu, H., Hajek, A.E.

“…In the laboratory, adult longevity decreased when adult A. glabripennis were forced to walk for 5 s on bands impregnated with B. brongniartii NBL 851 and for 25 s on B. brongniartii WU 20 and M. anisopliae VD 1 bands. A field experiment was conducted over a 31-day period in Huaiyuan, Anhui, China, by attaching bands impregnated with B. brongniartii NBL 851 or WU 20 around the trunks of willows (Salix sp.) at two sites infested with A. glabripennis. …”
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Evaluating the efficiency of entomopathogenic fungi against the Asian longhorned beetle, Anoplophora glabripennis (Coleoptera: Cerambycidae), by using cages in the field por Dubois, T., Hajek, A.E., Jiafu, H., Li, Z.

“…Three field experiments using cages were conducted in Anhui, China, to test the efficacy of entomopathogenic fungi against adult Asian longhorned beetles, Anoplophora glabripennis (Motschulsky). …”
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Revisiting intercropping indices with respect to potato-legume intercropping systems por Gitari, H.I., Nyawade, S., Kamau, S., Karanja, N., Gachene, C.K.K., Raza, M.A., Maitra, S., Schulte-Geldermann, Elmar

“…Intercropping is gaining popularity in developing countries as a viable strategy for diversifying cropping systems to ease food insecurity, given that arable land is shrinking, and demand for food crops is increasing due to rapid population growth. A field experiment was conducted in 2015 and 2016, to examine the biological and economic viability of two intercropping systems (potato-dolichos and potato-bean planted in two potatoes to legume population density ratios: 1.1:2 and 1: 2.4) and their corresponding pure stands. …”
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Genetic variability for yield and yield related traits in advanced bread wheat (Triticum aestivum L.) lines in eastern Ethiopia por Bedada, A., Tesso, B., Habte, Ermias

“…The current study was designed to generate information on genetic variability and inheritance of yield and its component traits using 36 advanced bread wheat lines. Field experiment was conducted in 2018 cropping season at Haramaya and Hirna in eastern Ethiopia using triple lattice design. …”
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Response of chickpea to varying moisture stress conditions in Ethiopia por Korbu, Lijalem, Fikre, Asnake, Tesfaye, Kassahun, Funga, Assefa, Bekele, Dagnachew, Ojiewo, Christopher Ochieng

“…This study demonstrates a simple and practical field-level screening method for drought tolerance traits in the conventional breeding programs. A field experiment was conducted using 28 elite chickpea cultivars during the 2018–2019 main cropping season to study their response to moisture regimes of varying drought intensities. …”
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Economic and agronomic optimum rates of NPS fertilizer for irrigated garlic (Allium sativum L) production in the highlands of Ethiopia por Yayeh, Shege Getu, Alemayehu, Melkamu, Haileslassie, Amare, Dessalegn, Yigsaw

“…Field experiment has been conducted in Yilmana Densa District during the 2014/2015 irrigation season with the objective of identifying the economical and agronomically optimum rate of the newly introduced NPS fertilizer for garlic production under irrigated smallholder farming system in the Highlands of Northwestern Ethiopia. …”
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Nitrogen addition and mowing affect microbial nitrogen transformations in a C4 grassland in northern China por Wang, C., Butterbach-Bahl, Klaus, He, N., Wang, Q., Xing, X., Han, X.

“…However, there is still little information on how management of semi‐arid grassland such as mowing and/or N fertilizer application affects microbial activity and N transformations. In a field experiment in northern China, N was added at a rate of 10 g N m−2 year−1 as NH4NO3 to mown and unmown plots (4 × 4 m2) and in situ rates of net ammonification (Ramm), nitrification (Rnit) and mineralization (Rmin) were followed at monthly intervals for the vegetation growth periods in the years 2006–2009. …”
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Social incentives as nudges for agricultural knowledge diffusion and willingness to pay for certified seeds: Experimental evidence from Uganda por Okello, J.J., Shikuku, Kelvin Mashisia, Lagerkvist, Carl Johan, Rommel, J., Jogo, W., Ojwang, S.O., Namanda, S., Elungat, J.

“…This study used a field experiment to examine the effect of a social incentive combined with goal setting on the diffusion of agricultural knowledge and uptake of quality certified seed by farmers. …”
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Precise irrigation water and nitrogen management improve water and nitrogen use efficiencies under conservation agriculture in the maize-wheat systems por Gupta, Naveen, Singh, Yadvinder, Jat, Hanuman S., Singh, Love K., Choudhary, Kajod Mal, Sidhu, Harminder S., Gathala, Mahesh K., Jat, Mangi L.

“…A 3-year field experiment was setup to address the threat of underground water depletion and sustainability of agrifood systems. …”
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Impact of sustainable soil management practices on soil microbial biomass carbon: Implications for climate change mitigation por Amahnui, George Amenchwi, Manga, Veronica Ebot, Tening, Aaron Suh, Nikièma, Paligwendé

“…The objective of this study was to evaluate the effects of tillage practices (conventional tillage and no-tillage) and fertiliser types (synthetic, organic, and no fertiliser) on soil MBC. The field experiment, located in Bue, Southwest region of Cameroon. …”
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Sweet or not: Nudging toward healthier food choices for children using information por Nguyen, Trang, de Brauw, Alan, Van den Berg, Marrit

“…It is of public health interest to nudge children toward healthier food choices such as beverages with less sugar. We conducted a field experiment in peri-urban Viet Nam to evaluate the effects of information and cognitive dissonance arousal on children’s food choice. …”
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Farmer decision making for hybrid maize seed purchases: Effects of brand loyalty, price discounts and product information por Rutsaert, Pieter, Donovan, Jason A., Murphy, Mike, Hoffmann, Vivian

“…METHODS: Our controlled field experiment with 600 farmers in Kenya comprised a mock agrodealer store stocked with locally available hybrids, where half the farmers who participated faced an out-of-stock situation for their preferred product. …”
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The role of social identity in shaping economic choices: Evidence from women’s self-help groups in India por Alvi, Muzna, Raghunathan, Kalyani, Sehgal, Mrignyani

“…We explore the salience of caste identity with a field experiment conducted among women’s self-help groups in an eastern state of India. …”
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