scholarly journals Comparative analysis of energy input-outputs of different tillage methods in second crop corn production

2020 ◽  
Vol 12 (2) ◽  
pp. 356-365
Author(s):  
Ramazan SAGLAM ◽  
Leyla SEVEN ◽  
Ferhat KUP

In this study, conventional tillage (CT), reduced tillage (RT) and zero tillage (ZT) methods energy input-output analysis during second crop corn production have been carried out. The trials were performed between 2015-2016 in Ceylanpinar Directorate of Agricultural Enterprises Karatas region, Turkey. The findings showed that among tillage methods, the least energy input was ZT (23724.15 MJ ha-1), and the most energy output was CT (138510 MJ ha-1). In energy productivity, the highest value was on ZT (5.54). The highest value in corn yield was found in CT method with 9500 kg ha-1. This is followed by ZT (9100 kg ha-1) and RT (8750 kg ha-1), respectively. As a result, although CT can be preferred due to its high yield, it has been observed that ZT and RT tillage methods should be supported especially due to its ecological and high energy productivity.

2014 ◽  
Vol 24 (1-2) ◽  
pp. 229-237 ◽  
Author(s):  
AKMS Islam ◽  
MM Hossain ◽  
MA Saleque ◽  
MA Rabbani ◽  
RI Sarker

Unpuddled transplanting of rice is gaining attention in Bagnaldesh agriculture. Energy budget is essential for efficient management of the resources in agricultural production. The energy balance under different minimum tillage practices in rice cultivation was assessed during 2009-11 by comparing the parameters: energy input, energy output, energy productivity and energy output:input ratio. Energy input in CT, SPWT, BP and ST were 25.50, 23.15, 20.48 and 20.49 GJ ha-1, respectively in rice cultivation. Maximum energy was consumed for chemical fertilizers. Tillage energy ranked second in conventional tillage and ranked fourth in minimum tillage options. Energy output was insignificant due to insignificant yield difference. Unpuddled transplanting (BP and ST) showed 8-12% increase in energy productivity and 22-24% increase in energy output:input ratio. However, from the energy saving point of view, unpuddled transplanting may be considered better options depending on the resources availability in rice cultivation.DOI: http://dx.doi.org/10.3329/pa.v24i1-2.19176 Progress. Agric. 24(1&2): 229 - 237, 2013


1957 ◽  
Vol 37 (2) ◽  
pp. 113-119
Author(s):  
E. F. Bolton ◽  
J. W. Aylesworth

Methods of mulch-planting were compared with mouldboard-ploughing methods for corn production at Woodslee during 1953, 1954 and 1955. The tillage treatments were established in second-year alfalfa sod on Brookston clay soil. On the basis of corn yield the conventional ploughing treatments were greatly superior to any mulch-plant method tested during the three years. Soil moisture studies indicated that the effect of the intercrop on the soil moisture supply was the major factor influencing crop yield, but moisture alone did not account entirely for the differences obtained in crop yield. The plough-plant method produced as good corn yields as spring ploughing in 1953 but somewhat less in 1954 and 1955. The results would suggest that an adaptation of the plough-plant method may have possible application as a tillage method for corn on the finer textured soils of southwestern Ontario.


2018 ◽  
Vol 73 ◽  
pp. 08011 ◽  
Author(s):  
Nurhayati Sembiring ◽  
Novita Sari Br Purba

This research is conducted in a company engaged in the manufacture of pesticides. The company has never measured it's energy productivity. The company is only based on production targets and financial benefits achieved each year. One method that can be used in productivity measurement and operational feasibility is Energy Productivity Ratio (EPR). EPR is expressed as the ratio of energy output to the energy input. The feasibility of the company's operation can be seen from the energy productivity value. The purpose of research conducted to 1) Measure the level of energy productivity 2) Measuring the feasibility of the company's operations 3) Identify the factors that influence the value of energy productivity ratio (EPR) and 4) Provide proposed steps to increase energy productivity. EPR is made by collecting data on material requirements, power requirements, machine and equipment data and the number of products produced. After doing the calculation of energy input and energy output, the final step is to calculate the value of Energy Productivity Ratio (EPR). By this research we know the company is feasible to operate because the value of EPR> 1, although it must be repaired to increase the value.


Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 229
Author(s):  
Gerhard Moitzi ◽  
Reinhard W. Neugschwandtner ◽  
Hans-Peter Kaul ◽  
Helmut Wagentristl

A goal in sustainable agriculture is to use fossil energy more efficiently in crop production. This 60-year-old experiment on a silt loam chernozem investigated effects of fertilization (unfertilized control, mineral fertilizer (NPK) and farmyard manure (FYM)) and rotation (continuous winter rye (CR), winter rye in rotation (RR), spring barley in rotation (SB) on diesel fuel consumption, total energy input (made of both direct and indirect inputs), crop yield, energy output, net-energy output, energy intensity, energy productivity and energy use efficiency. The input rates of fertilizer, herbicides and seeds were set constant during the experiment. Soil tillage was done with a moldboard plough with subsequent combined seedbed preparation and seeding. The mean calculated total energy input was highest in NPK with 11.28 GJ ha−1 and lowest in the unfertilized control with 5.00 GJ ha−1. Total energy input for FYM was intermediate with 6.30 GJ ha−1. With energetic consideration of NPK nutrients in FYM the total energy input increased to the level of NPK. The share of the fertilizer energy on the total energy input was 49% for NPK. Fertilization with FYM and NPK increased yield and energy output considerably, especially of CR and SB which attained about doubled values. Crop rotation also increased the yield and energy output, especially of unfertilized rye, which attained values increased by about 75%. Fertilization with FYM resulted in the highest energy efficiency as the net-energy output, the energy productivity and the energy use efficiency were higher but the energy intensity was lower compared to unfertilized controls and NPK. When the nutrients in FYM were also energetically considered, the energy efficiency parameters of FYM decreased to the level of the NPK treatment. Crop rotation increased the energy efficiency of winter rye compared to the monoculture.


Author(s):  
Osman Gokdogan ◽  
Seyithan Seydosoglu ◽  
Kagan Kokten ◽  
Aydin Sukru Bengu ◽  
Mehmet Firat Baran

The aim of this research is to compose an energy input-output of guar and lupin production during the production season of 2015 in Bingol province of Turkey. The energy input in guar and lupin production have been computed as 14 619.97 MJ ha-1 and 23 486.73 MJ ha-1, respectively. The energy output in guar and lupin production have been calculated as 43 767.21 MJ ha-1 and 16 554.41 MJ ha-1, respectively. Energy usage efficiency, specific energy, energy productivity and net energy in guar production have been calculated as 2.99, 6.42 MJ kg-1, 0.16 kg MJ-1 and 29 147.24 MJ ha-1, respectively. Energy usage efficiency, specific energy, energy productivity and net energy in lupin production have been calculated as 0.70, 31.95 MJ kg-1, 0.04 kg MJ-1 and -6932.32 MJ ha-1, respectively. The total energy input used up in guar production could be classified as 51.31 % direct, 48.69 % indirect, 22.24 % renewable and 77.76 % non-renewable. The total energy input used up in lupin production could be classified as 31.35 % direct, 68.65 % indirect, 33.68 % renewable and 66.32 % non-renewable.


1977 ◽  
Vol 9 (2) ◽  
pp. 143-148 ◽  
Author(s):  
James B. Kliebenstein ◽  
Jean-Paul Chavas

Since the early 1970s, the increasingly tight energy situation has introduced a new emphasis, if not a wholly new concern, into the economics of agriculture. Assuming the tight energy situation continues, or even intensifies in the future, it is likely to require economic adjustment in U.S. agriculture—an agriculture heavily dependent on fossil fuels.Dvoskin and Heady have shown that when maximizing farm profits is the primary goal, energy price levels have a minimal impact on acres of crops produced under reduced tillage methods in the U.S.. However, when energy minimization was the primary goal, there was a substantial shift from conventional to reduced tillage. An ERS study proposes that forms of reduced tillage can be a major means of achieving fuel savings. Reduced tillage methods do reduce fuel requirements, but these are accompanied by higher chemical requirements. Eidman, Dobbins and Mapp found that with current energy prices, a form of reduced tillage for corn production was preferable to conventional tillage methods. In a recent study, Musser and Marable concluded that with respect to machinery purchases, energy cost increases are providing incentives for substitution of labor for capital.


Author(s):  
Kagan Kokten ◽  
Erdal Cacan ◽  
Osman Gokdogan ◽  
Mehmet Firat Baran

The aim of this study is to determine an energy balance of common vetch, hungarian vetch and narbonne vetch production during the production season of 2015 in Bingol province of Turkey. The energy input in common vetch, hungarian vetch and narbonne vetch production have been calculated as 13060.72 MJ ha-1, 15767.22 MJ ha-1and 14769.73 MJ ha-1, respectively. The energy output in common vetch, hungarian vetch and narbonne vetch production have been calculated as 42048.22 MJ ha-1, 10051.33 MJ ha-1 and 11963.62 MJ ha-1, respectively. Energy usage efficiency, specific energy, energy productivity and net energy values related to common vetch, Hungarian vetch and Narbonne vetch production have been determined as 3.22, 0.64, 0.81; 5.46 MJ kg-1, 29.98 MJ kg-1, 21.98 MJ kg-1; 0.18 kg MJ-1, 0.03 kg MJ-1, 0.05 kg MJ-1 and 28987.50 MJ ha-1, -5715.89 MJ ha-1, -2806.11 MJ ha-1 respectively for each type. The total renewable energy input applied in common vetch, hungarian and narbonne vetch was 26.85, 20.42 and 29.69 per cent, respectively.


2021 ◽  
Author(s):  
Sirui Liu ◽  
Ya ping Xu ◽  
Jinggao Wu ◽  
Jing Huang

Supercapacitors are of paramount importance for next-generation applications, demonstrating high energy output, an ultra-long cycle life and utilizing green and sustainable materials. Herein, we utilize celery, a common biomass from...


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Changjiang Li ◽  
Shuo Li

AbstractThe well-irrigated planting strategy (WI) consumes a large amount of energy and exacerbates greenhouse gas emissions, endangering the sustainable agricultural production. This 2-year work aims to estimate the economic benefit, energy budget and carbon footprint of a wheat–maize double cropping system under conventional rain-fed flat planting (irrigation once a year, control), ridge–furrows with plastic film mulching on the ridge (irrigation once a year, RP), and the WI in dry semi-humid areas of China. Significantly higher wheat and maize yields and net returns were achieved under RP than those under the control, while a visible reduction was found for wheat yields when compared with the WI. The ratio of benefit: cost under RP was also higher by 10.5% than that under the control in the first rotation cycle, but did not differ with those under WI. The net energy output and carbon output followed the same trends with net returns, but the RP had the largest energy use efficiency, energy productivity carbon efficiency and carbon sustainability among treatments. Therefore, the RP was an effective substitution for well–irrigated planting strategy for achieving sustained agricultural development in dry semi-humid areas.


2021 ◽  
Vol 11 (7) ◽  
pp. 2907
Author(s):  
Gregor Sailer ◽  
Martin Silberhorn ◽  
Johanna Eichermüller ◽  
Jens Poetsch ◽  
Stefan Pelz ◽  
...  

This study evaluates the anaerobic digestion (AD) of the organic fraction of municipal solid waste (OFMSW) and digested sewage sludge (DSS) at lowered temperatures. AD batch tests for CH4 yield determination were carried out with DSS as inoculum between 23 and 40 °C. All results were related to organic dry matter and calculated for standard conditions (1013 hPa, 0 °C). The AD experiments at 40 °C and at 35 °C delivered specific CH4 yields of 325 ± 6 mL/g and 268 ± 27 mL/g for OFMSW alone. At lower temperatures, specific CH4 yields of 364 ± 25 mL/g (25 °C) and 172 ± 21 mL/g (23 °C) were reached. AD at 25 °C could be beneficial regarding energy input (heating costs) and energy output (CH4 yield). Plant operators could increase AD efficiencies by avoiding heating costs. The co-digestion of OFMSW together with DSS could lead to further synergies such as better exploitation of the energy potentials of DSS, but the digestate utilization could become problematic due to hygienic requirements. Efficiency potentials through lowered operating temperatures are limited. In further research, lowered process temperatures could be applied in the AD of energy crops due to large numbers of existing plants.


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