Research in Agricultural Engineering最新文献_第3页

Field evaluation of a bent leg tillage implement in dry soil conditions 干土条件下弯腿式耕作装置的田间评价

Research in Agricultural Engineering Pub Date : 2023-05-30 DOI: 10.17221/41/2022-rae

Aliakbar Solhjou, Sayed Mansor Alavimanesh

{"title":"Field evaluation of a bent leg tillage implement in dry soil conditions","authors":"Aliakbar Solhjou, Sayed Mansor Alavimanesh","doi":"10.17221/41/2022-rae","DOIUrl":"https://doi.org/10.17221/41/2022-rae","url":null,"abstract":"Tillage operations inÂ dry soil conditions have increasingly been used inÂ Iran inÂ recent years. However, due toÂ the recent droughts, the choice ofÂ suitable implements toÂ reduce the clod and draught force isÂ still under investigation. This study was aimed atÂ determining the effect ofÂ the geometry ofÂ aÂ bent leg tillage implement onÂ the soil pulverisation and draught force inÂ dry soil conditions. The treatments included three bent leg tillage depths (10, 15, and 20Â cm) and three forward speeds (6, 9, and 12Â km·h–1). The effect ofÂ the bent leg tillage implement onÂ the clod mean weight diameter (MWD) and draught force was studied using aÂ split plot experiment with three replications. The results showed that the tillage depth and forward speed affected the MWDÂ and the draught force. Increasing the tillage depth fromÂ 10Â toÂ 20Â cm increased the MWDÂ and draught force byÂ 24.9 and 35.1%, respectively. Increasing the forward speedÂ from 6Â toÂ 12Â km·h–1Â decreased the MWDÂ byÂ 7.4% and increased the draught force byÂ 40.0%. These findings show that the bentÂ leg tillage technology has the potential toÂ reduce the MWDÂ and draught force atÂ higher forward speeds. Therefore, aÂ bent legÂ tillage implement can beÂ suggested asÂ aÂ proper implement for tilling inÂ dry land conditions.","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135693115","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}

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Influence of primary tillage on the displacement of soil particles 初耕对土壤颗粒位移的影响

Research in Agricultural Engineering Pub Date : 2023-05-10 DOI: 10.17221/76/2022-rae

P. Brož, J. Hůla

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Comparison of the machine learning and AquaCrop models for quinoa crops 藜麦作物的机器学习和AquaCrop模型的比较

Research in Agricultural Engineering Pub Date : 2023-04-29 DOI: 10.17221/86/2021-rae

Rossy Chumbe, Stefany Silva, Yvan Garcia

引用次数: 0

Contrasting tillage systems and vertical arable layer stratification impacts on soil aggregates and root biomass in Lithuania 立陶宛不同耕作制度和垂直耕地分层对土壤团聚体和根系生物量的影响

Research in Agricultural Engineering Pub Date : 2023-04-29 DOI: 10.17221/29/2022-rae

Inga Andruškait&#x, V. Bogužas

引用次数: 0

The effect of large doses of organic fertilisers on maize 大剂量有机肥料对玉米的影响

Research in Agricultural Engineering Pub Date : 2023-04-03 DOI: 10.17221/75/2022-rae

P. Brož, Jaroslav Korba, Jitka Edrová, Josef Hůla, P. Šařec

引用次数: 0

Evaluation of low temperature drying characteristics of fresh tea leaves (Camellia assamica) in an environmental chamber using mathematical models 用数学模型评价新鲜茶叶在环境室内的低温干燥特性

Research in Agricultural Engineering Pub Date : 2023-03-22 DOI: 10.17221/28/2021-rae

Anindita Sharma, P. Dutta

引用次数: 0

Thin layer drying characteristics of alligator pepper, ginger and turmeric 鳄椒、姜、姜黄的薄层干燥特性

Research in Agricultural Engineering Pub Date : 2023-03-01 DOI: 10.17221/71/2021-rae

Adebayo Olasunkanmi Salau, Babatunde Sunday Ogunsina, Adewale Waliu Adebayo, Adekunle Felix Okunade

{"title":"Thin layer drying characteristics of alligator pepper, ginger and turmeric","authors":"Adebayo Olasunkanmi Salau, Babatunde Sunday Ogunsina, Adewale Waliu Adebayo, Adekunle Felix Okunade","doi":"10.17221/71/2021-rae","DOIUrl":"https://doi.org/10.17221/71/2021-rae","url":null,"abstract":": The delightful pungency, aromatic compounds and phytochemicals in some spices make them indispensable in local food systems and native medicine, hence, driving a robust market in many parts of the world. The understanding of their drying characteristics is very important for processing and adding value, and a thin layer drying study is a pro-ven method for achieving this. In this study, changes in the moisture content, moisture ratio, drying rate and effective diffusivity of alligator peppers, ginger and turmeric were investigated at three drying temperatures 50, 60, and 70 °C following standard procedures. Five models were proposed to simulate the drying process. Non-linear regression was used to establish the coefficient of determination ( R 2 ), sum of square error (SSE) and root mean square error (RMSE) for each model to determine the model of the best fit. The Page model gave the best fit for ginger while the logarithmic model was best fitted for alligator peppers and turmeric. The effective diffusivity ranged from 1.79–3.08 × 10 –9 , 8.44–9.74 × 10 –9 , and 4.06–6.49 × 10 –9 m 2 ·s –1 for alligator peppers, ginger and turmeric, respectively. The activation energy ranged from 16.5–22 kJ·mol –1 ·K –1 for the three spices. These findings promise improvement in the drying, processing and handling of spices, thereby boosting the obtainable income from the value chain.","PeriodicalId":20906,"journal":{"name":"Research in Agricultural Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43026374","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

Model development and optimisation of the disc plough efficiency on loamy-sand soil in South-East Nigeria 尼日利亚东南部壤土圆盘犁效率的模型开发和优化

Research in Agricultural Engineering Pub Date : 2023-02-23 DOI: 10.17221/72/2021-rae

O. Oduma, P. Ehiomogue, Dilibe Ifanyi Ntunde

引用次数: 0

Estimation of corn coefficients with vegetation indices using multispectral camera and drone 基于植被指数的多光谱相机与无人机玉米系数估算

Research in Agricultural Engineering Pub Date : 2023-02-14 DOI: 10.17221/19/2022-rae

C. Papanikolaou, M. Sakellariou-Makrantonaki

引用次数: 0

Influence of the excavator hydraulic system efficiency on the productivity 挖掘机液压系统效率对生产率的影响

Research in Agricultural Engineering Pub Date : 2023-01-13 DOI: 10.17221/77/2021-rae

M. Jůza, P. Heřmánek

引用次数: 0