Fachbezogene Partnerschaften für Ernährungssysteme und Ernährungssouveränität
https://kobra.uni-kassel.de:443/handle/123456789/2018101656532
2024-03-29T02:15:00ZDevelopment of deep-placement fertiliser applicator and modelling of loads arising in the process of its operation
https://kobra.uni-kassel.de:443/handle/123456789/15530
The article considers the method of minimum tillage, namely soil tillage, loosening the soil, and fertiliser application at a depth below the level of the main crop. This method allows you to minimize the number of operations used in the cultivation of row crops such as soybeans, wheat, and others. The research in the area of soil tillage, namely the mathematical calculation and static analysis performed with the CAD system, revealed the loads that appear directly in the places where the soil deepener is attached to the frame of the supporting structure. Also, it shows all the places that can be subjected to loads such as the rear wall of the soil deepening tillage stand', the attachment point of the tine coulter, and directly the spreading plate used for uniform fertiliser application. The calculated loads for soil deepeners were 2500 N per tool, based on mathematical calculations. CAD modelling enabled us to determine the form and details of the working tool, analyse the design integrity, identify structural deformations, and determine important indicators such as maximum load and safety factors. The obtained values indicate that the selected materials and fastening methods will satisfy the operating conditions obtained by calculation.
2023-12-28T00:00:00ZVaitekhovich, IuriiBolarskii, BorisHasegawa, HideoThe article considers the method of minimum tillage, namely soil tillage, loosening the soil, and fertiliser application at a depth below the level of the main crop. This method allows you to minimize the number of operations used in the cultivation of row crops such as soybeans, wheat, and others. The research in the area of soil tillage, namely the mathematical calculation and static analysis performed with the CAD system, revealed the loads that appear directly in the places where the soil deepener is attached to the frame of the supporting structure. Also, it shows all the places that can be subjected to loads such as the rear wall of the soil deepening tillage stand', the attachment point of the tine coulter, and directly the spreading plate used for uniform fertiliser application. The calculated loads for soil deepeners were 2500 N per tool, based on mathematical calculations. CAD modelling enabled us to determine the form and details of the working tool, analyse the design integrity, identify structural deformations, and determine important indicators such as maximum load and safety factors. The obtained values indicate that the selected materials and fastening methods will satisfy the operating conditions obtained by calculation.The potential of mangrove as a food source in Riau
https://kobra.uni-kassel.de:443/handle/123456789/15497
Mangrove fruit has been utilized as a food by people in several regions in Indonesia, especially as traditional food. Information about the potential and benefits of mangrove fruit is still limited. There is not much information regarding physico-chemical properties of mangrove fruit as a potential food source. This study aims to gather and review various scientific information related to the potential of mangrove fruit and its use as foodstuff. This information can be used as a basis to conduct further research related to the development of mangrove-based food and functional food products. Previous research revealed that in Rokan Hilir and Bengkalis Regencies, the Mangroves were dominated by three species; Rhyzophora mucronata, Bruguiera gymnorrhiza, and Sonneratia caseolaris. These three types of mangroves have the potential for food development in the future. Advanced processing of mangrove fruit that has gone through various stages of processing such as soaking, boiling, and drying, then processed into flour into various types of food, can be declared safe for consumption because proper processing can reduce the content of anti-nutritional substances to a safe limit for consumption. When combined with other ingredients, products made from mangrove flour are safe to use as substitutes. Unlike substitute materials, further research on the use of mangroves as a main food ingredient still requires a more in-depth study, especially minimizing the risk of toxic substances contained in the mangroves, processing techniques, and the final product to determine whether its use is safe or not.
2023-12-28T00:00:00ZTitisari, Prima WahyuElfisZen, Irina SafitriJuswardiChahyana, IndrySari, Tika PermataUlya, Ummul MuthmainnahMangrove fruit has been utilized as a food by people in several regions in Indonesia, especially as traditional food. Information about the potential and benefits of mangrove fruit is still limited. There is not much information regarding physico-chemical properties of mangrove fruit as a potential food source. This study aims to gather and review various scientific information related to the potential of mangrove fruit and its use as foodstuff. This information can be used as a basis to conduct further research related to the development of mangrove-based food and functional food products. Previous research revealed that in Rokan Hilir and Bengkalis Regencies, the Mangroves were dominated by three species; Rhyzophora mucronata, Bruguiera gymnorrhiza, and Sonneratia caseolaris. These three types of mangroves have the potential for food development in the future. Advanced processing of mangrove fruit that has gone through various stages of processing such as soaking, boiling, and drying, then processed into flour into various types of food, can be declared safe for consumption because proper processing can reduce the content of anti-nutritional substances to a safe limit for consumption. When combined with other ingredients, products made from mangrove flour are safe to use as substitutes. Unlike substitute materials, further research on the use of mangroves as a main food ingredient still requires a more in-depth study, especially minimizing the risk of toxic substances contained in the mangroves, processing techniques, and the final product to determine whether its use is safe or not.Preferences of market gardeners for traditional vegetables and associated factors in urban areas of southern Benin
https://kobra.uni-kassel.de:443/handle/123456789/15363
There is a growing interest in the promotion of the use of traditional vegetables to reduce vitamins, minerals, and dietary fibres’ gaps of populations and to support rural and urban livelihoods in sub–Saharan Africa, including in Benin, because they are considered as more nutritious, accessible, and more culturally acceptable for consumers than many exotic vegetables. Meanwhile, the extent to which these traditional vegetables are preferred by the target populations, and especially by the local market gardeners who are expected to supply the consumers, is not yet well-known in the context of Benin, especially in its large cities of Abomey-Calavi and Cotonou. This paper aims to fill this knowledge gap by analysing the preferences and the factors affecting the preferences of market gardeners for traditional vegetables in these cities. To achieve this objective, field visits and observations took place, as well as interviews with managers of market gardeners' organisations and with 74 market gardeners randomly selected in both cities. Data analysis revealed that a wide range of vegetables is produced in the study areas, including in decreasing order of importance, leafy (5 traditional and 1 exotic), fruit (3 traditional and 1 exotic), flower (0 traditional and 1 exotic), root (0 traditional and 1 exotic); and bulb (1 traditional and 0 exotic) vegetables. It was also noted that the production of traditional vegetables is preferred to that of exotic ones. The logistic regression model indicated that “membership in a market gardeners group”, “resistance to pests” and “clients’ demands” significantly and positively influence; while, “number of years of market gardening experience”, “loan of land allocated to gardening”, and “profitability” significantly and negatively influence the choice of traditional vegetable production by the surveyed gardeners. In all, it appeared from the study that technical constraints and economic interests are the main reasons guiding the market gardeners' production preferences and that some traditional vegetables are demanded by consumers. These findings suggest that Cotonou and Abomey-Calavi are relevant places for the promotion of traditional vegetables’ production. Further studies may, however, help find out why these traditional vegetables produced are still poorly consumed by the Benin population.
2023-12-28T00:00:00ZKouévi, Tèko AugustinAdé, Claude K.N´Danikou, SognigbéMongbo, Roch LambertKomlan, ChristelleDagnon, Gaïane NaïlaDjossouvi, Céphas O. E. A.Legba, Eric CocouAchigan-Dako, Enoch GbenatoThere is a growing interest in the promotion of the use of traditional vegetables to reduce vitamins, minerals, and dietary fibres’ gaps of populations and to support rural and urban livelihoods in sub–Saharan Africa, including in Benin, because they are considered as more nutritious, accessible, and more culturally acceptable for consumers than many exotic vegetables. Meanwhile, the extent to which these traditional vegetables are preferred by the target populations, and especially by the local market gardeners who are expected to supply the consumers, is not yet well-known in the context of Benin, especially in its large cities of Abomey-Calavi and Cotonou. This paper aims to fill this knowledge gap by analysing the preferences and the factors affecting the preferences of market gardeners for traditional vegetables in these cities. To achieve this objective, field visits and observations took place, as well as interviews with managers of market gardeners' organisations and with 74 market gardeners randomly selected in both cities. Data analysis revealed that a wide range of vegetables is produced in the study areas, including in decreasing order of importance, leafy (5 traditional and 1 exotic), fruit (3 traditional and 1 exotic), flower (0 traditional and 1 exotic), root (0 traditional and 1 exotic); and bulb (1 traditional and 0 exotic) vegetables. It was also noted that the production of traditional vegetables is preferred to that of exotic ones. The logistic regression model indicated that “membership in a market gardeners group”, “resistance to pests” and “clients’ demands” significantly and positively influence; while, “number of years of market gardening experience”, “loan of land allocated to gardening”, and “profitability” significantly and negatively influence the choice of traditional vegetable production by the surveyed gardeners. In all, it appeared from the study that technical constraints and economic interests are the main reasons guiding the market gardeners' production preferences and that some traditional vegetables are demanded by consumers. These findings suggest that Cotonou and Abomey-Calavi are relevant places for the promotion of traditional vegetables’ production. Further studies may, however, help find out why these traditional vegetables produced are still poorly consumed by the Benin population.Evaluation of the response of some lettuce cultivars to growth, production and quality indicators using hydroponic systems
https://kobra.uni-kassel.de:443/handle/123456789/15352
The research was conducted at Abi Jarsh Farm in the Faculty of Agricultural Engineering at Damascus University during the first season of 2020-2021 and the second season (experimental repetition) of 2021-2022. The experiment aimed to study the evaluation of growth, production, and quality indicators for two lettuce varieties, Romaine and Iceberg, within various hydroponic techniques: Nutrient Film Technique (NFT), Drip System Technique (DST), Deep Water Culture (DWC), and using three different concentrations of nutrient solutions (100%, 50%, 25%). The results of the analysis of variance, according to chemical analyses, showed that the average of the Romaine variety had the highest percentage in the Carotenoids pigment estimation index for lettuce leaves compared to the Iceberg variety. Additionally, the Romaine variety recorded the highest percentage in the Total Soluble Solids (TSS%) estimation index for lettuce leaves compared to the Iceberg variety. Meanwhile, the results of the variance analysis, according to physical tests, indicated that the average of the Iceberg variety had the highest percentage in the number of leaves compared to Romaine, while the Romaine variety recorded the highest value in the indicator of the total green length and inner stem.
2023-12-28T00:00:00ZIdelbe, AmanObead, HassanBaladiah, ReyadThe research was conducted at Abi Jarsh Farm in the Faculty of Agricultural Engineering at Damascus University during the first season of 2020-2021 and the second season (experimental repetition) of 2021-2022. The experiment aimed to study the evaluation of growth, production, and quality indicators for two lettuce varieties, Romaine and Iceberg, within various hydroponic techniques: Nutrient Film Technique (NFT), Drip System Technique (DST), Deep Water Culture (DWC), and using three different concentrations of nutrient solutions (100%, 50%, 25%). The results of the analysis of variance, according to chemical analyses, showed that the average of the Romaine variety had the highest percentage in the Carotenoids pigment estimation index for lettuce leaves compared to the Iceberg variety. Additionally, the Romaine variety recorded the highest percentage in the Total Soluble Solids (TSS%) estimation index for lettuce leaves compared to the Iceberg variety. Meanwhile, the results of the variance analysis, according to physical tests, indicated that the average of the Iceberg variety had the highest percentage in the number of leaves compared to Romaine, while the Romaine variety recorded the highest value in the indicator of the total green length and inner stem.