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Prospects and constraints in mechanization of homestead system of cultivation in Kerala 喀拉拉邦耕地机械化发展前景与制约因素
Agricultural Engineering Today Pub Date : 2020-03-31 DOI: 10.52151/aet2020441.1513
K. Arya, P. James
{"title":"Prospects and constraints in mechanization of homestead system of cultivation in Kerala","authors":"K. Arya, P. James","doi":"10.52151/aet2020441.1513","DOIUrl":"https://doi.org/10.52151/aet2020441.1513","url":null,"abstract":"Homestead agriculture refers to cultivation around the immediate surroundings of home. This study was conducted to determine the prospects and constraints involved in the adoption of mechanization in the field of homestead agriculture. A general survey was conducted among the homestead farmers of different regions of Kerala to prioritise the constraints faced by the. Using Garrett’s ranking method identified constraints were evaluated and finalized the major one which is restricting the farmers to adopt mechanization in homestead agriculture. It was found that the cultural operations were done using manual labour. Hence drudgery involved in the system was found to be more and time consumption also was high. These two factors need to be addressed hence appropriate and affordable mechanization was required to sustain homestead agriculture. A multipurpose tool carrier powered by a portable engine was identified to serve the purpose.","PeriodicalId":216128,"journal":{"name":"Agricultural Engineering Today","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123148574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and development of pressurized aqueous fertilizer application system for seeder 播种机加压水肥施肥系统的设计与研制
Agricultural Engineering Today Pub Date : 2020-03-31 DOI: 10.52151/aet2020441.1514
S. Lande, I. Mani
{"title":"Design and development of pressurized aqueous fertilizer application system for seeder","authors":"S. Lande, I. Mani","doi":"10.52151/aet2020441.1514","DOIUrl":"https://doi.org/10.52151/aet2020441.1514","url":null,"abstract":"In dry land areas, seed germination greatly affected by insufficient soil moisture during sowing. Nitrogenous fertilizers like granular urea remain unavailable due to inadequate soil moisture to dissolve, dilute and convey it to root zone level. Precise application of aqueous fertilizer at root zone depth at the time of sowing enhances seed germination percentage by increasing available soil moisture as per the soil-moisture-crop requirement. A pressurized aqua ferti metering system was designed and developed for application of aqueous fertilizer diluted with water along the side of seed. The prototype consisted of pressurized aqueous fertilizer metering system through positive displacement pump, stationary opening with agitator type seed metering system and shovel type furrow opener with provision of carrying seed and aqueous fertilizer delivery tubes. A pressurized aqueous fertilizer application system consisted of rotary gear pump to vary pump rotational speed and circular distributor for uniform distribution of aqueous fertilizer. The flow rate and pressure were controlled by control valve for required amount of aqueous fertilizer. Three nozzles of size 8, 10 and 12 mm were evaluated at different pump rotational speeds (1800, 1440, 1152, 1080 and 864 rpm) and different control valve positions (0, 2, 4 and 6 kg/cm2 ) for desired flow rate. The discharge rate at a particular pressure was found to vary linearly with the Pump rotational speed and decreased as the line pressure increased. The desired flow rate in pressurized pumping system was obtained in a nozzle of size 10 cm up to a maximum pump speed of 1440 rpm and for a line pressure of less than 4 kg/cm2 .","PeriodicalId":216128,"journal":{"name":"Agricultural Engineering Today","volume":"63 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126187424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on optimization of mechanical peeling for sweet potato 红薯机械去皮工艺的优化研究
Agricultural Engineering Today Pub Date : 2020-03-31 DOI: 10.52151/aet2020441.1512
P. Vithu, S. K. Dash, K. Rayaguru, U. S. Pal
{"title":"Study on optimization of mechanical peeling for sweet potato","authors":"P. Vithu, S. K. Dash, K. Rayaguru, U. S. Pal","doi":"10.52151/aet2020441.1512","DOIUrl":"https://doi.org/10.52151/aet2020441.1512","url":null,"abstract":"The aim of this research work was to optimize the machine parameters of a commercially available tuber peeler for peeling of sweet potato to get maximum yield with minimum loss. The process was proposed for different parameters such as peeling efficiency, material loss and peeling effectiveness at different speeds of rotating disc (300, 400 and 500 rev/min or 5.4, 7.2 and 9 m/s), peeling durations (20, 40 and 60 s) and batch loads of 1 and 2 kg. The study revealed that the peeling parameters were greatly influenced by the speed of rotating disc, peeling duration and batch loads. The optimal conditions for peeling sweet potato were a peeling duration of 40 s and speed of rotating disc of 500 rev/min 2 kg batch loads. The corresponding peeling efficiency, peeling effectiveness and material loss were 83.8±2.0%, 74.2±1.3% and 11.45±0.71%, respectively. Further, the study showed that a batch load of 2 kg was suitable for commercial processing of sweet potato than 1 kg because of the better performance indices of peeling.","PeriodicalId":216128,"journal":{"name":"Agricultural Engineering Today","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134108224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling of engineering properties for predicting the mass of acid lime fruit (Citrus aurantifolia Swingle) 酸石灰果实质量预测的工程特性建模(Citrus aurantifolia Swingle)
Agricultural Engineering Today Pub Date : 2020-03-31 DOI: 10.52151/aet2020441.1515
V. Sonone, D. Pawar, V. Kad, P. Unde
{"title":"Modeling of engineering properties for predicting the mass of acid lime fruit (Citrus aurantifolia Swingle)","authors":"V. Sonone, D. Pawar, V. Kad, P. Unde","doi":"10.52151/aet2020441.1515","DOIUrl":"https://doi.org/10.52151/aet2020441.1515","url":null,"abstract":"Engineering properties and their relationships with mass for Phule Sharbati acid lime cultivar were investigated. Relationship between physical properties of fruits and its mass will create tremendous change in the packaging industry. The mean values of engineering properties such as minor diameter, intermediate diameter, major diameter, geometric mean diameter, sphericity, aspect ratio, mass, surface area, volume and true density were found to be 42.55 mm, 41.20 mm, 40.41 mm, 0.94, 0.94, 38.17g, 49997 mm2, 33322.8 mm3 and 1 g/cc, respectively. Regression models were used to predict the effect of mass of acid lime and classified into two: 1–Single and multiple variable regressions of acid lime mass and dimensional characteristics and 2- Single variable regression for geometric mean diameter, sphericity, surface area and volume. Results indicated that mass modeling of acid lime based on minor diameter was found most appropriate in the first classification. In the second classification, the power-law model was noticed best on the basis of the geometric mean diameter, surface area and the volume.","PeriodicalId":216128,"journal":{"name":"Agricultural Engineering Today","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125868896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development and Performance Evaluation of High Insulation Box Type Solar Cooker 高保温箱式太阳能炊具的研制与性能评价
Agricultural Engineering Today Pub Date : 1900-01-01 DOI: 10.52151/aet2019431.1490
S. Poonia, A. Singh, P. Santra, Dilip Jain
{"title":"Development and Performance Evaluation of High Insulation Box Type Solar Cooker","authors":"S. Poonia, A. Singh, P. Santra, Dilip Jain","doi":"10.52151/aet2019431.1490","DOIUrl":"https://doi.org/10.52151/aet2019431.1490","url":null,"abstract":"This paper presents the design, development and performance evaluation of high insulation box type solar cooker. The solar cooker is capable of boiling food for five persons per day. Stagnation test and the water boiling test of the solar cooker were performed during April, 2017. The resulting values of first figure of merit (F1 ), second figure of merit (F2 ) and standardized cooking power (Ps ) was 0.1200 C, 0.424 and 45 W, respectively, which categorized the cooker as class A. This high insulation solar cooker was found to have high values of F1 and F2 (F1 >0.12 and F2 >0.40) during different seasons of the year. The overall efficiency of the high insulation box type solar cooker was 26.5%. The cooker is estimated to save 1293.8 MJ of energy per year. The cost of the cooker is INR 4500.00. The payback period of the solar cooker as compared to firewood, electricity, coal, LPG and kerosene based cooking was estimated to be 1.49, 1.94, 2.42, 3.12 and 6.99 years, respectively. The high insulation box type solar cooker can reduce about 815.30 kg of CO2 emission on annual basis.","PeriodicalId":216128,"journal":{"name":"Agricultural Engineering Today","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115579258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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