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Farmers’ Perspectives on Agricultural Marketing Information in Developing Countries: The Case of Tanzania Texte intégral
2025
Anasia Gasper Maleko | Inibehe George Ukpong
Marketing information enhances farmer’s decision to increase production and productivity of agricultural commodities. This paper examines farmers’ perspectives on agricultural marketing information in developing countries, with a case study focusing on three districts in Tanzania. Data were obtained from a survey conducted on 291 maize farmers in the three districts namely Arusha (103 farmers), Njombe (100 farmers) and Kongwa (88 farmers), selected from three regions in Tanzania Mainland. Descriptive statistics were used to analyse the percentage distributions of the farmers based on socio-economic characteristics and Likert scale ratings of the farmers’ levels of agreement with the debriefing questions constructed to evaluate their perceptions. The analysis of the socio-economic variables of the farmers suggests male dominance in maize farming, predominant youthful farming demographics, predominantly large household Size, and predominance of low-level educational backgrounds among maize farmers in the study areas. The results of the socio-economic characteristics underscore the importance of targeted policies to support maize farmers, focusing on education, youth engagement, and household resource management. The overall result of farmers’ perceptions of agricultural marketing information indicates a widespread agreement across districts highlighting the shared challenges and priorities among maize farmers in Tanzania, particularly indicating that farmers recognize the benefits of agricultural services and understand the importance of communication infrastructure for economic development. The study thus, recommends establishment of local marketing information centers to reduce costs and time associated with gathering market information, enhancement of digital literacy to train farmers, and collaboration with critical stakeholders; such as government, private sector, and non-profits organizations to fund and sustain marketing information infrastructure for farmers. Investments in communication and marketing infrastructure will bridge information gaps, enhance market access, and ultimately drive economic development among maize farmers. This structured approach will not only improve maize farmers’ productivity but also contribute to broader rural development goals.
Afficher plus [+] Moins [-]Consumers’ Perception of Food Safety Risks After the COVID-19 Pandemic: A Study on Türkiye Texte intégral
2025
Osman İnanç Güney | Levent Sangün
The COVID-19 pandemic has notably reshaped consumer perceptions of food safety, with lasting effects on food purchasing and consumption behaviors. This study examines Turkish consumers’ perceptions of food safety risks during and after the pandemic, aiming to contribute to both national and international literature on the topic. A cross-sectional survey was conducted between April and July 2023 in seven major Turkish cities (Istanbul, Ankara, Izmir, Trabzon, Adana, Van, and Gaziantep), with 1,016 respondents participating. The survey explored various socio-demographic factors influencing food safety risk perception using an ordered probit model. The results reveal that 86% of respondents consider food produced and sold in Türkiye risky, with 20.4% rating it as critically unsafe. Key factors influencing risk perception include concerns about open market sales, food additives, food labeling accuracy, and vendor hygiene practices. Additionally, socio-demographic characteristics such as marital status, age, education level, and household size significantly impact risk perception. Married individuals, older adults, and those with higher education levels tend to have heightened food safety concerns. These findings highlight the importance of targeted food safety education and policies that address diverse consumer profiles. The study provides insights for enhancing food safety strategies and fostering consumer confidence, especially during and after health crises.
Afficher plus [+] Moins [-]Tipleri ve Teknolojik Düzeyleri Farklı Seraların Karşılaştırmalı Yatırım Analizi Texte intégral
2025
Orhan Kara | Zeki Bayramoğlu
Seralar, üretim sezonunda birden fazla ürün elde edilmesi ve üretim sürecinin kontrol altında gerçekleştirilerek verim kayıplarının azaltılması açısından gıda arzına önemli katkı sağlayan tarım sistemleridir. Seralarda birim alandan daha yüksek verim almak için özellikleri ve yapıları itibariyle amaca uygun planlanmalıdır. Tarım işletmelerinde seraların planlanmasında en önemli ölçüt yatırım maliyetidir. Bu doğrultuda çalışma kapsamında tiplerine ve teknolojik özelliklerine göre seraların yatırım analizleri, üretilen ürünlerin verimlilikleri ve işletmelerin karlılıkları karşılaştırılmıştır. Çalışmada, Mersin ilinde sebze üretimi yapan 99 adet plastik, 86 adet cam ve 5 adet topraksız sera işletmelerinde anket yapılmıştır. Anket yoluyla elde edilen verilerde; net kar domates üretilen plastik sera işletmelerinde 9.814,15 TL/da, topraksız sera işletmelerinde 109.532,91 TL/da, biber üretilen plastik sera işletmelerinde 5.522,14 TL/da, hıyar üretilen cam sera işletmelerinde 10.460,53 TL/ da belirlenmiştir. Sera tiplerine göre 3,93 yıl ile topraksız sera işletmelerinde yatırımın geri ödeme süresinin daha kısa olduğu ve 6,68 yıl ile plastik serada domates yetiştiriciliğinin takip ettiği tespit edilmiştir. Dolayısıyla net bugünkü değer domates yetiştiriciliği yapılan plastik ve topraksız seralarda pozitif olup bu yatırımların kârlı olduğunu göstermektedir. Benzer şekilde fayda masraf oranı topraksız domates seralarında 2,05 ve plastik domates seralarında 1,13 hesaplanmıştır. Bu nedenle söz konusu iki sera tipinde ve ürünlerinde projenin geliri yatırımından daha fazla olduğu için karlılık yüksektir.
Afficher plus [+] Moins [-]Assessment of Agricultural Water Consumption in İzmir Province Texte intégral
2025
Belgin Çakmak | Sertan Avcı
Population growth and the rise in the level of welfare across the world cause an increase in the demand for water, energy and food, while water supply in sufficient quantity and quality is gradually decreasing in parallel. In addition, events such as droughts and floods caused by climate change have negative impacts on ecosystems. In line with the increasing water demand, it is becoming increasingly important to develop sustainable development of water resources, to provide water in the required quantity and quality at the desired place and time, to develop solutions for the effective management of inter-sectoral allocation and to control losses and leakages. Worldwide, the distribution of groundwater and surface water resources by sectors varies between continents over the years and depending on the development of the sectors. When the water consumption rates of domestic (drinking and using), industrial and agricultural sectors, which are the largest users of water resources, are analysed, it is seen that agricultural use is 69%, industrial use is 19% and domestic use is 12% on a global scale. In Turkey, approximately 75% of total water resources are used for agricultural irrigation, while this rate is 33% in Europe. However, the rate of agricultural water use in Southern European countries can reach up to 75%. As is evident, the agricultural sector accounts for the most intensive use of water resources. Agriculture has the most important share in the sustainability of water resources due to its high utilization rate. For this reason, agricultural water use constitutes the main point of ensuring the sustainability of water resources and the most effective use of existing resources. In this study, the basic elements of sustainable urban water management are discussed and a framework for assessing the current water use of Izmir province with a water footprint approach is presented as an example. In addition, a flow chart has been prepared as a basis for the creation of a water footprint map. Such assessments will provide important contributions in terms of ensuring ecosystem sustainability, increasing water efficiency in cities and reducing risks associated with water resources, including food security, and supporting sustainable development.
Afficher plus [+] Moins [-]Determination of Evapotranspiration and Optimum Irrigation Schedule for Cotton in Çukurova Region Using CROPWAT Model Texte intégral
2025
Usman Muhammad Umar | Burak Şen | Zeynep Ünal
The agriculture sector is actively looking for the most effective ways to manage water resources. Proper water management is crucial for increasing agricultural productivity and optimizing the region’s water usage efficiency. The purpose of this study was for estimating the irrigation water requirement, reference and crop evapotranspiration and irrigation schedule for cotton in Çukurova region over a 31-year period (1990-2020) using the CROPWAT model. To ensure appropriate water utilization and planning, information regarding the climate data was obtained from the Adana station of Turkish State Meteorology Service. The soil and crop data were sourced from Turkey’s directorate of agricultural research and policies. The dates, amounts, effective rainfall, net irrigation requirement (NIR), and yield decrease for rainfed and different irrigated conditions were all calculated using the CROPWAT 8.0 model. The findings indicated that the average reference evapotranspiration (ETo), crop evapotranspiration (ETc) for cotton and effective rainfall were 918.9 mm, 809.5 mm, and 149.4 mm respectively. It was also estimated that the dates of irrigation after planting (DAP) were 72 days, 101 days, 131 days and 170 days. The total quantity of water utilized for irrigation throughout the growing season at critical depletion and user defined were 700 mm and 545 mm respectively, thus 155 mm of water was saved (22%). Data of maximum crop yield obtained at critical depletion by CROPWAT was associated with data from Turkish Statistical Institute (TUIK) (2014-2020) and TUIK data is compared with CROPWAT data which was estimated under rainfed condition. According to the result 51% of yield reduction was simulated when irrigation was not applied.
Afficher plus [+] Moins [-]Enhancing Okra Productivity Through Seed Priming: Insights from Chitwan, Nepal Texte intégral
2025
Mandeep Thapa | Basanta Kumar Rimal | Sujan Lamichhane | Arjun Kumar Shrestha
Seed hardiness threatens the growth and yield of okra by causing low and non-uniform germination. Seed priming is an effective, ecologically sound, and practical technique to promote germination. A study was conducted from March to July 2024 in Chitwan, Nepal, to evaluate the effectiveness of different seed priming treatments in enhancing the germination, growth, and yield of okra. The study used a randomized complete block design (RCBD) with four replications, under five different treatments: Control: no soaking, Hydro priming, NaCl @ 0.5%, KNO3 @ 0.5%, GA3 @ 100 ppm. Each plot consisted of twenty plants. Data on germination percentage, growth, and yield were recorded using standard methods. The collected data were examined employing MS Excel and R-studio version 4.3.2. Seeds primed with GA3 @ 100 ppm showed a significant rise in germination percentage (90 %), plant height at 30 DAS (17.50 cm) and 45 DAS (39.81 cm), leaf canopy diameter at 45 DAS (69.68 cm), fruit number per plant (9.15), fruit weight per plot (423.75 g), and maximum yield (1.41 t/ha), followed by other treatments. The leaf number per plant and fruit length were not significant. However, priming positively affected germination, growth, and yield parameters compared with the control (no soaking). The study found that priming okra with GA3 @ 100 ppm enhanced growth and yield. Seed priming with GA3 is recommended for okra production in Rampur, Chitwan.
Afficher plus [+] Moins [-]Yurtta Kalan Kız Öğrencilerin Beslenme Alışkanlıkları Beden İmaj Algıları ve Akademik Başarılarının Değerlendirilmesi Texte intégral
2025
Nildem Kızılaslan
Bu araştırma, yurtta kalan kız öğrencilerin beslenme alışkanlıkları, beden imaj algıları ve akademik başarılarının değerlendirilmesi amacıyla planlanmıştır. Araştırma Ocak 2024-Haziran 2024 tarihleri arasında Tokat Gaziosmanpaşa Üniversitesinde öğrenim gören ve yurtta kalan 18-24 yaş arası kız öğrenciler ile yapılmıştır. Araştırmaya dahil edilme kriterleri, yurtta kalıyor olmak ve araştırmaya katılmaya gönüllü olmak olarak belirlenmiştir. Bu araştırmanın örneklemini belirlemek amacıyla yapılan power analizi sonucuna göre, %95 güven aralığında en az 185 kız öğrenciye ulaşılması hedeflenmiştir. Uygulanan anket formunda bireylerin sosyo-demografik özelliklerini içeren sorular sorulmuş ve beden imaj ölçeği uygulanmıştır. Aynı zamanda 3 günlük besin tüketim kaydı (2 gün hafta içi 1 gün hafta sonu), mezura ile bel ve kalça çevresi ölçümü, taşınabilir stadiometre ile boy uzunluğu, tanita ile bireylerin vücut ağırlığı ölçülmüştür. Akademik başarı ortalamaları ile kahvaltı saati, öğlen ve akşam yemeği tüketme durumu, yurtta akşam yemeği tüketimi, ara öğün yapma durumu arasında istatistiksel açıdan anlamlı bir fark bulunmuştur. Beden imaj ölçeğine göre vücutlarını yeterli ölçüde beğendikleri belirtilmiştir. Enerji (kkal), protein (gr), karbonhidrat (gr), yağ (gr), kolesterol (mg), vitamin C (mg), tiamin (mg), riboflavin (mg), Folat (µg), vitamin B12 (mg), kalsiyum (mg), bakır (µg), flor (mg), iyot (µg), demir (mg), magnezyum (mg), fosfor (mg), çinko (mg), potasyum (mg), sodyum (mg), posa (g), doymuş yağ asidi (g), tekli doymamış yağ asidi (g), çoklu doymamış yağ asidi (g) değerleri ile beden imaj ölçeği arasında istatistiksel açıdan anlamlı bir fark bulunmuştur. Alınan besin tüketim kayıtlarının ortalamaları ile bireylerin yeterince makro ve mikro besin ögesi alamadıkları, sağlıksız beslenme davranışlarının akademik başarı ortalamalarını etkilediği görülmüştür.
Afficher plus [+] Moins [-]Effect of Arbuscular Mycorrhizal Fungi on the Demographic Parameters of Myzus persicae (Sulzer, 1776) (Hemiptera: Aphididae) Mediated by Pepper Plant Under Laboratory Conditions Texte intégral
2025
Hilmi Kara | Nubar Yigit
The green peach aphid, Myzus persicae (Sulzer, 1776) (Hemiptera: Aphididae), has a broad host range including pepper plants and causes significant economic losses worldwide. The effectiveness of arbuscular mycorrhizal fungi (AMF) in inducing plant immunity against pests has recently been tested on various plant insect pests. This study aims to investigate the impact of AMF colonization on the demographic characteristics of M. persicae feeding on the Demre type pepper cultivar. AMF (Glomus spp.) was ensured to colonize the pepper plant roots and the experiments were carried out in the climate room with plant growth LEDs under 25 ± 2 °C, 65 ± 5 RH and 16:8 light:dark conditions. As a result of daily counts, raw data on the aphid biology were analyzed in the Two-sex MSChart program. The findings indicated that AMF application did not result in any statistically significant differences in the biological and life table parameters of M. persicae. Furthermore, similar results were obtained when the results were compared with the control in the 45-day population simulation. Determining the AMF-plant-insect interactions with different plant species and insect species will make a significant contribution to increasing the success of biological control and preserving the natural balance.
Afficher plus [+] Moins [-]Poverty and Food Insecurity Status of Fisherfolk in the Coastal Region of Nigeria Texte intégral
2025
Lawrence Olusola Oparinde | Olaniran Anthony Thompson | Similoluwa Adewole | Adebote Esther Eriromurun | Ibidun Comfort Adene | Oluayo Anthony Bello-Olusoji
This study analysed fisherfolk’s poverty and food insecurity status in the coastal region of Nigeria. Data from 420 artisanal fisherfolk, selected through a multistage sampling procedure, were analysed using descriptive statistics, a multidimensional poverty index approach, a household food insecurity access scale, and Seemingly unrelated regression equation (SURE). Findings from the study showed that about 62% of the respondents lived in households with malnourished individuals, no clean water, no electricity, no education, a dirty floor, inadequate infrastructure, and poor healthcare services. Infrastructure such as markets and road networks had the highest contribution to the poverty intensity with education having the least contribution in the study area. The results revealed that artisanal fisherfolk who are non-poor are more food secure than those who are poor. Also, estimates from SURE show that household size, daily income, and owning a house significantly influenced household food insecurity level, while multidimensional poverty level was significantly influenced by age, education experience, daily income, owning a house, and credit constraint. It is, therefore, recommended that initiatives that address poverty and food insecurity issue among the artisanal fisherfolk in the coastal region of Nigeria should be given utmost priority because of the contribution of the sub-sector to the economy. Also, artisanal fisherfolk are encouraged to diversify their means of livelihood in order to reduce their level of poverty.
Afficher plus [+] Moins [-]Effect of Soil Treatment with Silver and Gold Nanoparticles on the Accumulation of Ag, Au, and Other Elements in Earthworm Eisenia fetida and Their Vitality Texte intégral
2025
Andrzej Skwiercz | Wojciech Hyk | Magdalena Muszyńska | Natalia Skubij | Stanislaw Kaniszewski
The effect of treatment of the Californian earthworm Eisenia fetida with preparations containing silver (Ag; in the form of either nanoparticles (AgNPs) or cations (AgNO3 solution)) and gold (Au; in the form of nanoparticles (AuNPs)) on its vitality was studied in a laboratory experiment for 12, 48, and 158 h. After the observations were completed, the total elemen content was analysed after exposure to individual preparations applied to the soil. Earthworms and the soil in which they were grown were analysed. Measurements were performed using the inductively coupled plasma mass spectrometry technique, with prior mineralisation of earthworms and soil samples. The results of quantitative studies showed a several-fold increase in Ag content in earthworms exposed to preparations containing Ag compared to the control group. Significantly higher contents of K, Na, P, Mg, and Si were also found in earthworms exposed to Ag and Au compared to the control group. Despite exposure to AuNPs, no increase in the concentration of this element was observed in the earthworms. The analysis also included other elements: Li, Al, Ca, Ti, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Mo, Ag, Cd, Ba, Au, Hg, Tl, and Pb. The initial analysis did not show any significant differences in the concentrations of these elements in earthworms exposed to individual preparations compared to the control. The high level of elements classified as toxic to earthworms, including As, Cd, and Pb, is noteworthy, but the concentrations of these elements were not dependent on the use of any of the preparations. Based on a visual inspection of live individuals, we could not confirm the reduced vitality of earthworms exposed to individual preparations compared to the control. In contrast, individual populations retained full vitality after exposure and reproduced.
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