Effects of tillage method and crop rotation on non-renewable energy use efficiency for a thin Black Chernozem in the Canadian Prairies

2004 ◽  
Vol 77 (2) ◽  
pp. 125-136 ◽  
Author(s):  
R.P Zentner ◽  
G.P Lafond ◽  
D.A Derksen ◽  
C.N Nagy ◽  
D.D Wall ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Crop Rotation ◽  
Energy Use ◽  
Canadian Prairies ◽  
Energy Use Efficiency ◽  
Use Efficiency ◽  
Tillage Method

scholarly journals Crop sequence effects on energy efficiency and land demand in a long-term fertilisation trial

2021 ◽  
Vol 67 (No. 12) ◽  
pp. 739-746
Author(s):  
Gerhard Moitzi ◽  
Reinhard Neugschwandtner ◽  
Hans-Peter Kaul ◽  
Helmut Wagentristl
Keyword(s):  
Energy Efficiency ◽  
Crop Rotation ◽  
Crop Yield ◽  
Energy Use ◽  
Energy Output ◽  
Winter Rye ◽  
Energy Use Efficiency ◽  
Use Efficiency ◽  
Bare Fallow

The effect of crop sequences (CR – continuous winter rye; CropR – three-field crop rotation of winter rye-spring barley-bare fallow) and fertilisation systems (unfertilised control, mineral fertiliser (NPK), farmyard manure (FYM)) on crop yield, energy efficiency indicators and land demand were analysed in a long-term experiment under Pannonian climate conditions. Due to lower fuel consumption in the bare fallow, the total fuel consumption for CropR was 27% lower than in CR. It was for NPK and FYM fertilisation by 29% and 42% higher than in the control. Although the energy output was lower in CropR than CR, the energy use efficiency for grain production increased by 35% and for above-ground biomass production by 20%. Overall crop sequences, the NPK treatment had higher crop yields, energy outputs and net-energy output with a lower energy use efficiency than the unfertilised control. CropR increased the land demand just by 20% in comparison to CR, although one-third of the land was not used for crop production. The land demand could be decreased with fertilisation by 50% (NPK) or 48% (FYM). A bare fallow year in the crop rotation decreased the crop yield, energy input and increased the energy use efficiency and land demand.  

Effects of input management and crop diversity on non-renewable energy use efficiency of cropping systems in the Canadian Prairie

2011 ◽  
Vol 34 (2) ◽  
pp. 113-123 ◽  
Author(s):  
R.P. Zentner ◽  
P. Basnyat ◽  
S.A. Brandt ◽  
A.G. Thomas ◽  
D. Ulrich ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Use ◽  
Cropping Systems ◽  
Crop Diversity ◽  
Canadian Prairie ◽  
Energy Use Efficiency ◽  
Use Efficiency

scholarly journals Energy Balance and Energy Use Efficiency of Annual Bioenergy Crops in Field Experiments in Southern Germany

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1835
Author(s):  
Robert Oliver Simon ◽  
Kurt-Jürgen Hülsbergen
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Energy Use ◽  
Field Experiments ◽  
Energy Crops ◽  
Energy Output ◽  
Net Energy ◽  
Energy Use Efficiency ◽  
Energy Inputs ◽  
Use Efficiency

The main objective of the cultivation of energy crops is the production of renewable energy, the substitution of fossil energy resources, and a substantial contribution to energy supply. Thus, energy yield and energy efficiency are the most important criteria for the assessment of energy crops and biomass-based renewable energy chains. Maize is the energy crop with the highest cultivation acreage in Germany because of its high energy yields, but is the subject of controversial debate because of possible detrimental effects on agro-ecosystems. This raises the question as to which energy crops and production systems could be used instead of maize, in order to increase crop diversity and lower environmental impacts. We examined yields, energy inputs, energy outputs, and energy efficiency of alternative energy crops (combinations of catch crops and main crops) compared to maize in four-year field experiments at three southern German sites by means of process analyses. Maize showed moderate energy inputs (11.3–13.2 GJ ha−1), with catch crops ranging from 6.2 to 10.7 GJ ha−1 and main crops ranging from 7.6 to 24.8 GJ ha−1. At all three sites, maize had the highest net energy output compared to the other crops (x¯ = 354–493 GJ ha−1), but was surpassed by combinations of catch and main crops at some sites (winter rye/maize: x¯ = 389–538 GJ ha−1). Although some combinations yielded higher net energy outputs than maize, no other crop or combination of crops outperformed maize regarding energy use efficiency (energy output/energy input: x¯ = 32–45).

scholarly journals Management of Renewable Energy Sources and Technologies for Turkey

2020 ◽  
pp. 26-36 ◽  
Author(s):  
H. H. Sahin ◽  
B. Yelmen ◽  
C. Kurt
Keyword(s):  
Renewable Energy ◽  
Energy Saving ◽  
Energy Management ◽  
Fossil Fuels ◽  
Energy Use ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Energy Sources ◽  
Energy Use Efficiency ◽  
Use Efficiency

Utilization of alternative sources named as new and renewable energy sources; Due to technological development and difficulties in competing economically with traditional resources, it has not reached the desired level until today. Due to the rapid increase in energy consumption today; It is a fact proved by scientific findings that fossil fuels will be consumed in the near future. Therefore, in the development of countries; Providing timely, reliable, clean and uninterrupted energy, creating a market environment, in other words, successful implementation of energy management have become imperative. Energy has become one of the most important problems of the world countries today. As is known, the lifetimes of energy sources such as coal and oil are limited. In addition, due to the use of fossil fuels; It is a fact that global warming is increasing day by day. In the light of the data obtained, for our energy needs; alternative solutions should be found, renewable energy sources should be evaluated. The importance of renewable energy sources has increased as the problems related to environmental pollution increase, and projects related to them have started to get support. These energy sources can basically be classified as hydroelectric energy, wind energy, solar energy, geothermal energy, modern biomass energy and hydrogen energy. Economic and efficient operation of new and renewable energy sources should be transformed into a common understanding in order to provide clean energy. In this study, energy production methods from green energy sources, environmental relations and new technologies used with these energy sources are explained. It has been compared among energy sources; In Turkey, energy management issues are discussed, new and renewable clean energy use efficiency and energy saving and new strategies are determined. In addition, recommendations were made on energy use efficiency and energy saving measures in various sectors.

Effects of crop rotation on energy use efficiency of irrigated potato with cereals, canola, and alfalfa over a 14-year period in Manitoba, Canada

2019 ◽  
Vol 195 ◽  
pp. 104357 ◽  
Author(s):  
Mohammad Khakbazan ◽  
Ramona M. Mohr ◽  
Jianzhong Huang ◽  
Rebecca Xie ◽  
Karl M. Volkmar ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Energy Use ◽  
Energy Use Efficiency ◽  
Use Efficiency

Energy use efficiency of Indian cement companies: a data envelopment analysis

2010 ◽  
Vol 4 (1) ◽  
pp. 57-73 ◽  
Author(s):  
Sabuj Kumar Mandal ◽  
S. Madheswaran
Keyword(s):  
Data Envelopment Analysis ◽  
Energy Use ◽  
Data Envelopment ◽  
Energy Use Efficiency ◽  
Use Efficiency

Energy Use Efficiency

2021 ◽  
Keyword(s):  
Energy Use ◽  
Energy Use Efficiency ◽  
Use Efficiency

scholarly journals Energy Use Efficiency of Different Drying Methods for Two Rough Rice Cultivars

2015 ◽  
Vol 3 (2) ◽  
pp. 23-28 ◽  
Author(s):  
Seyed Mehdi Nassiri ◽  
Seyed Mohammad Etesami
Keyword(s):  
Energy Use ◽  
Drying Methods ◽  
Rice Cultivars ◽  
Energy Use Efficiency ◽  
Rough Rice ◽  
Use Efficiency

Arbuscular mycorrhizal fungi improve photosynthetic energy use efficiency and decrease foliar construction cost under recurrent water deficit in woody evergreen species

2018 ◽  
Vol 127 ◽  
pp. 469-477 ◽  
Author(s):  
Vanessa Barros ◽  
Gabriella Frosi ◽  
Mariana Santos ◽  
Diego Gomes Ramos ◽  
Hiram Marinho Falcão ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Water Deficit ◽  
Mycorrhizal Fungi ◽  
Energy Use ◽  
Arbuscular Mycorrhizal ◽  
Construction Cost ◽  
Evergreen Species ◽  
Energy Use Efficiency ◽  
Use Efficiency
Sign in / Sign up

Export Citation Format

Share Document