On-Farm Rice Drying Energy Use

1987 ◽  
Vol 3 (1) ◽  
pp. 79-86
Author(s):  
Lalit R. Verma ◽  
Lyle Jacobsen
Keyword(s):  
Energy Use ◽  
Rice Drying ◽  
On Farm

scholarly journals Modelling Future Agricultural Mechanisation of Major Crops in China: An Assessment of Energy Demand, Land Use and Emissions

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6636
Author(s):  
Iván García Kerdan ◽  
Sara Giarola ◽  
Ellis Skinner ◽  
Marin Tuleu ◽  
Adam Hawkes
Keyword(s):  
Land Use ◽  
Energy Demand ◽  
Energy Use ◽  
Mainland China ◽  
Bioenergy Crops ◽  
Direct Energy ◽  
Total Investment ◽  
On Farm ◽  
Global Emissions

Agricultural direct energy use is responsible for about 1–2% of global emissions and is the major emitting sector for methane (2.9 GtCO2eq y−1) and nitrous oxide (2.3 GtCO2eq y−1). In the last century, farm mechanisation has brought higher productivity levels and lower land demands at the expense of an increase in fossil energy and agrochemicals use. The expected increase in certain food and bioenergy crops and the uncertain mitigation options available for non-CO2 emissions make of vital importance the assessment of the use of energy and the related emissions attributable to this sector. The aim of this paper is to present a simulation framework able to forecast energy demand, technological diffusion, required investment and land use change of specific agricultural crops. MUSE-Ag & LU, a novel energy systems-oriented agricultural and land use model, has been used for this purpose. As case study, four main crops (maize, soybean, wheat and rice) have been modelled in mainland China. Besides conventional direct energy use, the model considers inputs such as fertiliser and labour demand. Outputs suggest that the modernisation of agricultural processes in China could have the capacity to reduce by 2050 on-farm emissions intensity from 0.024 to 0.016 GtCO2eq PJcrop−1 (−35.6%), requiring a necessary total investment of approximately 319.4 billion 2017$US.

Energy use efficiency of on-farm- and post-pineapples production in Nigeria

2013 ◽  
Vol 9 (2) ◽  
pp. 175
Author(s):  
S.O. Jekayinfa ◽  
S.O. Afolayan ◽  
A. Taiwo ◽  
J.O. Popoola
Keyword(s):  
Energy Use ◽  
Energy Use Efficiency ◽  
Use Efficiency ◽  
On Farm

scholarly journals 143 Impacts of soil carbon sequestration on life cycle greenhouse gas emissions in midwestern USA beef finishing systems

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 147-148
Author(s):  
Jason Rowntree ◽  
Paige Stanley ◽  
David Beede ◽  
Marcia DeLonge ◽  
Michael Hamm
Keyword(s):  
Life Cycle ◽  
Soil Carbon ◽  
Energy Use ◽  
Ghg Emissions ◽  
C Sequestration ◽  
Grazing Impact ◽  
Mineral Supplement ◽  
Soil C ◽  
Continuous Grazing ◽  
On Farm

Abstract Using life cycle analysis (LCA), several studies have concluded that grass-finished beef systems have greater GHG intensities than feedlot-finished (FL) beef systems. These studies evaluated only one grazing management system– continuous grazing – and assumed steady-state soil carbon (C), to model the grass-finishing environmental impact. However, by managing for more optimal forage growth and recovery, adaptive multi-paddock (AMP) grazing can improve animal and forage productivity, potentially sequestering more soil organic carbon (SOC) than continuous grazing. To examine impacts of AMP grazing and related SOC sequestration on net GHG emissions, a comparative LCA was performed of two different beef finishing systems in the Upper Midwest, USA: AMP grazing and FL. We used on-farm data collected from the Michigan State University Lake City AgBioResearch Center for AMP grazing. Impact scope included GHG emissions from enteric methane, feed production and mineral supplement manufacture, manure, and on-farm energy use and transportation, as well as the potential C sink arising from SOC sequestration. Across-farm SOC data showed a 4-year C sequestration rate of 3.59 Mg C ha−1 yr−1 in AMP grazed pastures. After including SOC in the GHG footprint estimates, finishing emissions from the AMP system were reduced from 9.62 to −6.65 kg CO2-e kg carcass weight (CW)−1, whereas FL emissions increased slightly from 6.09 to 6.12 kg CO2-e kg CW−1 due to soil erosion. This indicates that AMP grazing has the potential to offset GHG emissions through soil C sequestration, and therefore the finishing phase could be a net C sink. However, FL production required only half as much land as AMP grazing. This research suggests that AMP grazing can contribute to climate change mitigation through SOC sequestration and challenges existing conclusions that only feedlot-intensification reduces the overall beef GHG footprint through greater productivity.

scholarly journals An Assessment of Direct on-Farm Energy Use for High Value Grain Crops Grown under Different Farming Practices in Australia

Energies ◽  
2015 ◽  
Vol 8 (11) ◽  
pp. 13033-13046 ◽  
Author(s):  
Tek Maraseni ◽  
Guangnan Chen ◽  
Thomas Banhazi ◽  
Jochen Bundschuh ◽  
Talal Yusaf
Keyword(s):  
Energy Use ◽  
Farming Practices ◽  
Grain Crops ◽  
On Farm

ANALISIS ENERGI PENGERINGAN PADI MENGGUNAKAN VERTICAL DRYER TYPE VRD60 DI DESA BIGO SELATAN KABUPATEN BOLAANG MONGONDOW UTARA

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Giovanni Lengkey
Keyword(s):  
Total Energy ◽  
Diesel Fuel ◽  
Energy Use ◽  
Survey Methods ◽  
Rice Variety ◽  
Calorific Value ◽  
Drying Process ◽  
Grain Moisture ◽  
Materials Used ◽  
Rice Drying

The purpose of this study is calculating the total energy needed during the rice drying process by using a vertical dryer VRD60 type in Bigo Selatan Village, Kaidipang Subdistrict, North Bolaang Mongondow District, and determining the efficiency of energy use during the rice drying process.  The tools used were: AGRINDO dryer VRD60 type, Danoplus infrared thermometer THE-223, Sima brand weighing scale with the capacity of 500 kg, and CROWN digital grain moisture meter. Materials used were: 5,202 kg (5.2 tons) of Sultan rice variety, diesel fuel, and rice husks. The study was conducted with experimental and survey methods. Data was analyzed descriptively. The results showed  that the total energy used by the dryer is 1,531,560 kcal consist of 6,300 kcal labor (humans) energy, 683,760 kcal  of diesel fuel and 841,500 kcal of energy from husk usage. The biggest energy is obtained from the husk used as much as 255 kg with a calorific value of 841,500 kcal and the biggest use is to evaporate water from materials that is 450,293.1 kcal. The energy efficiency of drying from a vertical dryer VRD60 type is found to be 38.29%.

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