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Post-Harvest Loss and Grain Storage Technology- A Review Полный текст
2021
Bayode Julius Olorunfemi | Sunday Emmanuel Kayode
The aim of this write up is to explore technological developments in the area of post-harvest grain storage techniques. Post-harvest losses occur between harvest and the moment of human consumption. They include on-farm losses, such as when grain is threshed, winnowed, and dried, as well as losses along the chain during transportation, storage, and processing. Use of traditional grain storage facilities such as cribs, improved rhombus, and brick bins are ineffective against mold and insects already present in the grain before storage. While plastic bins reduce insect pests’ infestation, Purdue Improved crop storage bags and wooden silo were proved to be a viable management tool for preventing aflatoxin accumulation in storage and moisture migration. The metal silo still remains an effective grain storage technology for reducing post-harvest insect and pathogen losses if the challenges of moisture and temperature can be adequately managed. An effective grain storage technology would be the ones that can sustain quality of grain stored for a long period (≥5 years), durable, cost-effective, and be managed scientifically, possibly by computer-aided grain management system.
Показать больше [+] Меньше [-]Factors Affecting Adoption of Recommended Cauliflower Production Technology in Nepal Полный текст
2016
Pankaj Raj Dhital | Narayan Raj Joshi
Binary logit regression model of econometrics was used to identify the factors affecting adoption of recommended agricultural technology by the commercial farmers of Nepal. A survey was carried out in 2012 in 120 households from Kavre district, Nepal. The objective was to appraise factors affecting adoption of recommended technology of cauliflower, finding out the level of adoption, identifying the constraints of cauliflower cultivation, assessing the perceived level of satisfaction and studying the relationship of certain selected variables on the adoption. Education, Occupation, contact with Personal Localite sources of information, Group membership and Experience were the most influencing factors for adoption of recommended technology. Though, other factors were not strong enough to contribute significantly but indirectly influence the adoption decision of farmers as combined effects. Occupation was found as negatively associated. Landholding size was strongly and positively influencing among the non significant factors. The level of satisfaction and the constraints of cauliflower production were also identified. Transfer of technology will be effective if and only if the client adopts the technology. For an effective transfer of technology, it is better to go for activities for the welfare of the socioeconomic factors of the farmers.
Показать больше [+] Меньше [-]Factors Affecting Adoption of Recommended Cauliflower Production Technology in Nepal Полный текст
2016
Pankaj Raj Dhital | Narayan Raj Joshi
Factors Affecting Adoption of Recommended Cauliflower Production Technology in Nepal Полный текст
2016
Pankaj Raj Dhital | Narayan Raj Joshi
Binary logit regression model of econometrics was used to identify the factors affecting adoption of recommended agricultural technology by the commercial farmers of Nepal. A survey was carried out in 2012 in 120 households from Kavre district, Nepal. The objective was to appraise factors affecting adoption of recommended technology of cauliflower, finding out the level of adoption, identifying the constraints of cauliflower cultivation, assessing the perceived level of satisfaction and studying the relationship of certain selected variables on the adoption. Education, Occupation, contact with Personal Localite sources of information, Group membership and Experience were the most influencing factors for adoption of recommended technology. Though, other factors were not strong enough to contribute significantly but indirectly influence the adoption decision of farmers as combined effects. Occupation was found as negatively associated. Landholding size was strongly and positively influencing among the non significant factors. The level of satisfaction and the constraints of cauliflower production were also identified. Transfer of technology will be effective if and only if the client adopts the technology. For an effective transfer of technology, it is better to go for activities for the welfare of the socioeconomic factors of the farmers.
Показать больше [+] Меньше [-]Fitoextracción de cadmio con hierba mora (Solanum nigrum L.) en suelos cultivados con cacao (Theobroma cacao L.) Полный текст
2018
Ramírez Pisco, Ramiro | Giraldo Jiménez, Daniela | Barrera Cruz, Dairo
Abstract An important step towards a restoration of cadmium-contaminated soils (Cd) is the use of phytoextraction, using plants such as blackberry (Solanum nigrum L.), a species reported as hyperaccumulating, capable of tolerating and developing in soils with high concentrations of Cd, which can be considered an alternative of interest for cocoa growers (Theobroma cacao L.). With the purpose of facing the restriction for the commercialization that generates this element, due to the norms of the commerce of grain, with high contents of Cd and the implications that represents in the human health, in addition, of the great number of families whose main sustenance comes from this alternative, the response of S. nigrum to three concentrations of Cd in the soil, T1: 0, T2: 5 , T3: 10 mg/kg was evaluated. It was evidenced as S. nigrum L. may be of interest for phytoextraction processes of this metal, since it is a fast growing plant, with low environmental demands and high acclimatization capacity. In this study a high correlation was found between the cadmium contents in soil and its accumulation in S. nigrum L., it was also found that the increase of cadmium in the edaphic medium favors the growth of this plant, increases the leaf area, enlarges the root biomass (r2 = 0.74 ) as well as stem and leaves in a significant way. | Resumen La fitoextracción con plantas como hierba mora (Solanum nigrum L.) es una alternativa importante para la rehabilitación de suelos contaminados con cadmio (Cd). Esta especie, reconocida como hiperacumuladora, tiene capacidad para tolerar y crecer en suelos con altas concentraciones de este microelemento y constituye una alternativa de interés para los cultivadores de cacao (Theobroma cacao L.). Con el propósito de enfrentar la restricción para la comercialización de productos agrícolas que genera este elemento, se evaluó la respuesta de S. nigrum a las concentraciones de Cd: 0, 5 y 10 mg/kg en el suelo. Se halló una alta correlación entre los contenidos del elemento en el suelo y su acumulación en la planta, incrementando (P < 0.05) el área foliar (r2 = 0.63), la biomasa de la planta (r2 = 0.63) y biomasa tanto en raíz (r2 = 0.74) como en tallo (r2 = 0.47) y hojas (r2 = 0.68). Por tanto, S. nigrum L. constituye una alternativa en procesos de fitoextracción de este metal, ya que es una planta de rápido crecimiento, con bajas exigencias ambientales y alta capacidad de adaptación.
Показать больше [+] Меньше [-]Drone Use in Agricultural Spraying: An Examination in Terms of Occupational Health and Safety Полный текст
2025
Filiz Arıcak
One of the cornerstones of a developed economy is undoubtedly the agricultural sector. Agriculture is at the center of both human nutrition and economic activities. The use of drones, especially in the process of spraying fields, has the potential to increase the efficiency of agricultural production. Drones can be programmed to scan the field and spray pesticides on these areas. This allows farmers to manage the processes of protecting their crops and removing pests more effectively. Spraying with drones minimizes the negative effects encountered in spraying with tractor-drawn machines. Drones can easily reach places that tractor-drawn machine cannot reach and can spray more precisely. In addition, thanks to drones, the need for labor is also reduced, so that one person can spray a large area in a short time. In this study, the process of spraying with drones was observed in detail by a company with an unmanned aerial vehicle-2 (UAV) license for agricultural spraying. This modern spraying method using drones was meticulously evaluated step by step. In traditional methods, farmers or workers may be directly exposed to pesticides while spraying with tractor-drawn machines, but thanks to drones, this exposure is minimized, which provides a great advantage in terms of occupational health and safety (OHS). In addition, the speed of the work process, less use of water and pesticides, and the need for labor are among the advantages. However, the problem of not being able to connect to GPS, accidents that may occur under the command of the drone, and limitations such as adverse weather conditions can be considered disadvantages of drone spraying. The findings reveal how drone spraying has transformed agriculture.
Показать больше [+] Меньше [-]Drone Use in Agricultural Spraying: An Examination in Terms of Occupational Health and Safety Полный текст
2025
Filiz Arıcak
One of the cornerstones of a developed economy is undoubtedly the agricultural sector. Agriculture is at the center of both human nutrition and economic activities. The use of drones, especially in the process of spraying fields, has the potential to increase the efficiency of agricultural production. Drones can be programmed to scan the field and spray pesticides on these areas. This allows farmers to manage the processes of protecting their crops and removing pests more effectively. Spraying with drones minimizes the negative effects encountered in spraying with tractor-drawn machines. Drones can easily reach places that tractor-drawn machine cannot reach and can spray more precisely. In addition, thanks to drones, the need for labor is also reduced, so that one person can spray a large area in a short time. In this study, the process of spraying with drones was observed in detail by a company with an unmanned aerial vehicle-2 (UAV) license for agricultural spraying. This modern spraying method using drones was meticulously evaluated step by step. In traditional methods, farmers or workers may be directly exposed to pesticides while spraying with tractor-drawn machines, but thanks to drones, this exposure is minimized, which provides a great advantage in terms of occupational health and safety (OHS). In addition, the speed of the work process, less use of water and pesticides, and the need for labor are among the advantages. However, the problem of not being able to connect to GPS, accidents that may occur under the command of the drone, and limitations such as adverse weather conditions can be considered disadvantages of drone spraying. The findings reveal how drone spraying has transformed agriculture.
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