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Feasibility and reliability of agricultural crop height measurement using the laser sensor array

Information Processing in Agriculture 2024年第2期11卷 228-236页

作者： Pejman Alighaleh tarahom mesri gundoshmian Saeed Alighaleh Abbas Rohani Department of Biosystems Engineering Faculty of AgricultureFerdowsi University of MashhadMashhadIran Department of Biosystems Engineering University of Mohaghegh ArdabiliArdabilIran Auckland Bioengineering Institute University of AucklandNew Zealand

Crop height measurement is widely used to analyze and estimate the overall crop condition and the amount of biomass *** only is manual measurement on a large scale time-consuming but also it is not ***,advanced equipment is available but they require technical skills and are not reasonable for *** article investigates the feasibility of a simple and low-cost measurement system that can monitor crops height of paddy rice and wheat using laser *** designing and fabricating,this system was tested and evaluated in both laboratory and farm *** the laboratory,paddy rice height was measured,and in the field section,the height detection system measured wheat *** results showed that the coefficient of determination(R3)between manual measurement and height detection system measurement for paddy rice was 0.96 and for wheat was ***,there was no significant difference between the two datasets at the level of 5%.Hence,this system can be a useful and accurate tool to monitor crops height in different growing steps.

关键词： Plant height Laser Rice Wheat Crop monitoring

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Energy use pattern and optimization of energy required for broiler production using data envelopment analysis

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Information Processing in Agriculture 2016年第2期3卷 83-91页

作者： Sama Amid tarahom mesri gundoshmian Gholamhossein Shahgoli Shahin Rafiee Department of Agricultural Machinery Engineering Faculty of Agriculture Technology And Natural ResourcesUniversity of Mohaghegh ArdabiliArdabilIran Department of Agricultural Machinery Engineering Faculty of Agriculture Engineering TechnologyUniversity of TehranKarajIran

A literature review shows that energy consumption in agricultural production in Iran is not efficient and a high degree of inefficiency in broiler production exists in *** consumption of broiler production in Ardabil province of Iran was studied and the nonparametric method of data envelopment analysis(DEA)was used to analyze energy efficiency,separate efficient from inefficient broiler producers,and calculate wasteful use of energy to optimize *** was collected using face-to-face questionnaires from 70 broiler farmers in the study *** returns to scale(CCR)and variable returns to scale(BCC)models of DEA were applied to assess the technical efficiency of broiler *** results indicated that total energy use was 154,283 MJ(1000 bird)^-1 and the share of fuel at 61.4%was the highest of all *** indices of energy efficiency,energy productivity,specific energy,and net energy were found to be 0.18,0.02 kg MJ^-1,59.56 MJ kg^-1,and^-126,836 MJ(1000 bird)^-1,*** DEA results revealed that 40%and 22.86%of total units were efficient based on the CCR and BCC models,*** average technical,pure technical,and scale efficiency of broiler farmers was 0.88,0.93,and 0.95,*** results showed that 14.53%of total energy use could be saved by converting the present units to optimal *** contribution of fuel input to total energy savings was 72%and was the largest share,followed by feed and electricity energy *** results of this study indicate that there is good potential for increasing energy efficiency of broiler production in Iran by following the recommendations for efficient energy use.

关键词： Broiler Data envelopment analysis Energy Technical efficiency

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