Greenhouse gas emissions in agricultural cultivated soils using animal waste-based digestates for crop fertilization

2021 ◽  
pp. 1-8
Author(s):  
Modupe Olufemi Doyeni ◽  
Urte Stulpinaite ◽  
Ausra Baksinskaite ◽  
Skaidre Suproniene ◽  
Vita Tilvikiene
Keyword(s):  
Greenhouse Gas ◽  
Agricultural Waste ◽  
Ghg Emissions ◽  
Application Rate ◽  
Organic Fertilizers ◽  
Temperate Climate ◽  
Animal Waste ◽  
Livestock Waste ◽  
Climate Conditions ◽  
Synthetic Nitrogen Fertilizer

Abstract Agricultural waste contributes significantly to greenhouse gas (GHG) emissions if not adequately recycled and sustainably managed. A recurring agricultural waste is livestock waste that has consistently served as feedstock for biogas systems. The objective of this study was to assess the use of animal waste digestate to mitigate GHG emissions in agricultural fields. Wheat (Triticum spp. L.) was fertilized with different types of animal waste digestate (organic fertilizers) and synthetic nitrogen fertilizer (inorganic fertilizer). The 170 kg N/ha presented in digestates were split fertilized at an application rate of 90 and 80 kg N/ha. Emissions of GHGs (carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O)) were monitored directly by a static chamber system. The soil and environmental variables were measured to determine their influence on GHG emissions. Emission peaks in N2O and CO2 after the first application of fertilizers with the emissions flattening out over the cultivating season while CH4 emission was negligible with no apparent patterns observed. Results showed individual and cumulative emissions of CO2, CH4 and N2O from the digestates were relatively low and digestate fertilization could be an efficient method for reducing GHGs from agricultural sources in temperate climate conditions.

scholarly journals LIMBAH TERNAK KELINCI SEBAGAI BAHAN BAKU PUPUK ORGANIK POTENSIAL

2018 ◽  
Vol 16 (2) ◽  
pp. 152
Author(s):  
Risvan Anwar ◽  
Djatmiko Djatmiko
Keyword(s):  
Raw Materials ◽  
Organic Fertilizer ◽  
Nutrient Content ◽  
Raw Material ◽  
Organic Fertilizers ◽  
Animal Waste ◽  
Livestock Waste ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Many Sources

Many sources of raw materials which allegedly can enrich the nutrient content in the organic fertilizer. The weakness of organic fertilizer for this is the low level of nutrients contained in them.This study aims to determine the nutrient content contained in various combinations of organic fertilizer raw materials with rabbit animal waste as the main raw material.This study aims to determine the nutrient content in various combinations of organic fertilizer raw materials with rabbit animal waste as the main raw material. The experiment used a completely randomized design with raw materials as treatments, Livestock Waste Rabbit (LTK), Cow Manure (PKS) and Abu Straw Rice (AJP). Such treatment: B1 = LTK; B2 = LTK: PKS = 2: 1; B3 = LTK: AJP = 3: 1; B4 = LTK: PKS: AJP = 6: 2: 1; B5 = LTK: PKS: AJP = 5: 2: 1; B6 = LTK: PKS: AJP = 4: 2: 1; B7 = LTK: PKS: AJP = 3: 2: 1; B8 = LTK: PKS: AJP = 2: 2: 1; B9 = LTK: PKS: AJP = 1: 2: 1. The research concluded (a) Organic fertilizers are made from various materials raw has fulfilled SNI 19-7030-2004 about the specifications of Organic Waste Compost. (B) A combination of organic fertilizer raw materials significantly affect the nutrient content of manure. (C) Organic fertilizers expectations are: (a) Raw materials of animal wastes rabbit (LTK), (b) LTK: PKS: AJP = 6: 2: 1, (c) LTK: PKS: AJP = 2: 2: 1 and (d) LTK: PKS: AJP = 1: 2: 1.

scholarly journals Development of Integrated Farming Businesses Based on Zero Waste Agriculture in Parigi Moutong Regency

2021 ◽  
Vol 1 (2) ◽  
pp. 28-39
Author(s):  
Burhanuddin Nasir ◽  
Irwan Lakani ◽  
Najamudin Najamudin ◽  
Sitti Sabariyah ◽  
Sri Anjar Lasmini ◽  
...  
Keyword(s):  
Agricultural Development ◽  
Animal Feed ◽  
Agricultural Waste ◽  
Production Costs ◽  
Organic Fertilizers ◽  
Livestock Waste ◽  
Waste Products ◽  
Zero Waste ◽  
Integrated Farming ◽  
Regional Partnership

Zero waste agriculture is an agricultural concept oriented around the decomposition cycle of organic materials which integrates agricultural and livestock systems to reprocess waste material. Agricultural waste is used as animal feed while livestock waste/excrement is reprocessed into organic fertilizers. The Regional Partnership Service Program (PKW) aims to assist farmers in developing integrated farming businesses based around zero waste agriculture. PKW was held between May and July 2021 in Tindaki Village, South Parigi District, Parigi Moutong Regency. The implementation of this regional partnership program was carried out through a Participatory Action Programs approach, where partners are directly involved in the adoption and application of the various skills that had been developed. The procedure for activity implementation was carried out through several stages, namely: (a) counseling on zero waste agriculture, (b) training in and application of zero waste agriculture technology in the form of demonstration plots for the application of technological products, (c) coaching and mentoring, and (d) the utilization stage of technology product. The findings from the implementation concluded that the agricultural development training based on zero waste agriculture was a success, and the technology had been adopted by the community, marked by the ability to make and develop compost and liquid organic bio-urine fertilizers. Both types of organic fertilizers had been applied in the demonstration plots to assess their effectiveness in reducing the use of inorganic fertilizers. Rice production is equivalent to 5.6 tons/ha and 6 tons/ha in conventional land. These results show potential benefits for farmers, particularly regarding lower production costs compared to the usage of conventional land. Zero waste agriculture is a method of farming and livestock raising that utilizes their waste products for energy production.

scholarly journals Effects of Three Types of Organic Fertilizers on Greenhouse Gas Emissions in a Grassland on Andosol in Southern Hokkaido, Japan

2021 ◽  
Vol 5 ◽  
Author(s):  
Ryosuke Kitamura ◽  
Chiho Sugiyama ◽  
Kaho Yasuda ◽  
Arata Nagatake ◽  
Yiran Yuan ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Net Primary Production ◽  
Organic Fertilizer ◽  
Ghg Emissions ◽  
Reduction Rate ◽  
Chemical Fertilizer ◽  
Organic Fertilizers ◽  
Chemical Fertilizers ◽  
Carbon Loss ◽  
Digestive Fluid

Reduction of chemical fertilizers and effective use of livestock excrement are required for the realization of sustainable agriculture and reduction of greenhouse gas (GHG) emissions. The purpose of this study was to estimate the reduction rate of GHG emissions represented by comparing global warming potential (GWP) using organic fertilizers instead of chemical fertilizers. The study was conducted in a managed grassland on Andosol in southern Hokkaido for 3 years from May 2017 to April 2020. There were five treatment plots: no fertilizer, chemical fertilizer, manure, slurry, and digestive fluid. Organic fertilizers were applied such that the amount of NPK did not exceed the recommended application rate, and the shortage was supplemented with chemical fertilizers. Fluxes in CO2 caused by heterotrophic respiration (RH), CH4, and N2O were measured using the closed chamber method. Net ecosystem carbon balance (NECB) was obtained as net primary production + organic fertilizer application—RH—harvest. The GWP was estimated by CO2 equivalent NECB and CH4 and N2O emissions in each treatment. Chemical fertilizer nitrogen application rates in the organic fertilizer treatments were reduced by 10% for manure, 19.7% for slurry and 29.7% for digestive fluid compared to chemical fertilizer only, but the grass yields were not significantly different among the fertilizer treatments. The 3-year NECB showed significantly smallest carbon loss in manure treatment, and smaller carbon loss in the organic fertilizer treatments than in the chemical fertilizer only. The reduction rate in the GWP with use of organic fertilizers relative to that of chemical fertilizer was 16.5% for slurry, 27.0% for digestive fluid, and 36.2% for manure. The NECB accounted for more than 90% of the GWP in all treatments. CH4 emissions were < 0.1% of the GWP. On the other hand, N2O emissions accounted for more than 5% of the GWP, and was larger in the order of slurry > chemical fertilizer only > digestive fluid > manure. As a conclusion, these organic fertilizers can be used without no reduction of crop yield instead of chemical fertilizer, however, manure is the best way to increase soil carbon and to decrease GWP, followed by digestive fluid.

Pengenalan Budidaya Sayuran Hidroponik dan Pembuatan Pupuk Organik Fermentasi pada Kelompok Tani di Kecamatan Pelaihari

2021 ◽  
Vol 1 (1) ◽  
pp. 166
Author(s):  
Riza Adrianoor Saputra
Keyword(s):  
Soil Fertility ◽  
Community Service ◽  
Agricultural Waste ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Livestock Waste ◽  
Hydroponic System ◽  
Level Of Understanding ◽  
And Training ◽  
Vegetable Cultivation

Agricultural technology with a hydroponic system is an alternative in the use of narrow land to increase the availability of vegetables to be fulfilled in Pelaihari Sub-District, Tanah Laut Regency. Most of the land in Pelaihari District has a low level of fertility and the lack of knowledge of farmers in increasing soil fertility. Therefore, efforts to increase soil fertility are needed through counseling and training in the manufacture of fermented organic fertilizers made from agricultural waste, it is hoped that fertility will increase and agricultural waste can be utilized. This activities uses lecture methods, discussions and direct practice in the field based on the results of initial observations as the basis for determining the level of understanding and insight of farmers.  Before the extension activities were carried out, a list of questions (questionnaires) was distributed and after the activity was completed, this list of questions was distributed again. Community service activities in the form of counseling and training on hydroponic system vegetable cultivation and the manufacture of fermented organic fertilizers. Based on the results of the pre-instruction and post-training questionnaires, it was found that an increase in the knowledge of activity participants was 12.73%. The hydroponic system used in this community service is a wick system and also a technique for making fermented organic fertilizer (bokashi) made from agricultural waste and livestock waste.

scholarly journals Modeling impacts of farming management practices on greenhouse gas emissions in the oasis region of China

2011 ◽  
Vol 8 (8) ◽  
pp. 2377-2390 ◽  
Author(s):  
Y. Wang ◽  
G. J. Sun ◽  
F. Zhang ◽  
J. Qi ◽  
C. Y. Zhao
Keyword(s):  
Greenhouse Gas ◽  
Ghg Emissions ◽  
Fertilizer Application ◽  
Application Rate ◽  
Return Rate ◽  
N2o Emissions ◽  
Co2 Fluxes ◽  
Dndc Model ◽  
Agricultural Ecosystems ◽  
Fertilizer Application Rate

Abstract. Agricultural ecosystems are major sources of greenhouse gas (GHG) emissions, specifically nitrous oxide (N2O) and carbon dioxide (CO2). An important method of investigating GHG emissions in agricultural ecosystems is model simulation. Field measurements quantifying N2O and CO2 fluxes were taken in a summer maize ecosystem in Zhangye City, Gansu Province, in northwestern China in 2010. Observed N2O and CO2 fluxes were used for validating flux predictions by a DeNitrification-DeComposition (DNDC) model. Then sensitivity tests on the validated DNDC model were carried out on three variables: climatic factors, soil properties and agricultural management. Results indicated that: (1) the factors that N2O emissions were sensitive to included nitrogen fertilizer application rate, manure amendment and residue return rate; (2) CO2 emission increased with increasing manure amendment, residue return rate and initial soil organic carbon (SOC); and (3) net global warming potential (GWP) increased with increasing N fertilizer application rate and decreased with manure amendment, residue return rate and precipitation increase. Simulation of the long-term impact on SOC, N2O and net GWP emissions over 100 yr of management led to the conclusion that increasing residue return rate is a more efficient method of mitigating GHG emission than increasing fertilizer N application rate in the study area.

scholarly journals Modeling impacts of farming management practices on greenhouse gas emissions in the oasis region of China

2011 ◽  
Vol 8 (2) ◽  
pp. 3121-3153
Author(s):  
Y. Wang ◽  
G. J. Sun ◽  
F. Zhang ◽  
J. Qi ◽  
Z. D. Feng ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Ghg Emissions ◽  
Fertilizer Application ◽  
Application Rate ◽  
Return Rate ◽  
N2o Emissions ◽  
Co2 Fluxes ◽  
Dndc Model ◽  
Agricultural Ecosystems ◽  
Fertilizer Application Rate

Abstract. Agricultural ecosystems are major sources of greenhouse gas (GHG) emissions, specifically nitrous oxide (N2O) and carbon dioxide (CO2). An important method of researching GHG emissions in agricultural ecosystems is model simulation. Field measurements quantifying N2O and CO2 fluxes were taken in a summer maize ecosystem in Zhangye City, Gansu Province, in northwestern China in 2010. Observed N2O and CO2 fluxes were used for validating flux predictions by a DeNitrification-DeComposition (DNDC) model. Then the validated DNDC model was used for sensitivity tests on three variables under consideration: climatic factors, soil properties, and agricultural management. Results indicate that: (1) the factors that N2O emissions are most sensitive to nitrogen fertilizer application rate, manure amendment and residue return rate; (2) CO2 emission increases with increasing manure amendment, residue return rate and initial soil organic carbon (SOC); and (3) net global warming potential (GWP) increases with increasing N fertilizer application rate and decreases as manure amendment, residue return rate and precipitation increase. Simulation of the long-term impact on SOC, N2O and net GWP emissions over 100 yr of management led to the conclusion that increasing residue return rate is a more efficient method of mitigating GHG emission than increasing fertilizer N application rate in the study area.

scholarly journals Sustainable Production of Sweet Sorghum as a Bioenergy Crop Using Biosolids Taking into Account Greenhouse Gas Emissions

2019 ◽  
Vol 11 (11) ◽  
pp. 3033 ◽  
Author(s):  
Lilianna Głąb ◽  
Józef Sowiński
Keyword(s):  
Sewage Sludge ◽  
Greenhouse Gas ◽  
Sweet Sorghum ◽  
Crop Production ◽  
Ghg Emissions ◽  
Temperate Climate ◽  
Bioenergy Crop ◽  
Waste Products ◽  
Fertilization Practice ◽  
Sorghum Production

Currently, little data are available on greenhouse gas (GHG) emissions from sweet sorghum production under temperate climate. Similarly, information on the effect of bio-based waste products use on the carbon (C) footprint of sorghum cultivation is rare in the literature. The aim of this study was to evaluate the agronomical and environmental effects of the application of biosolids as a nitrogen source in the production of sweet sorghum as a bioenergy crop. The yield of sorghum biomass was assessed and the GHG emissions arising from crop production were quantified. The present study focused on whether agricultural use of sewage sludge and digestate could be considered an option to improve the C footprint of sorghum production. Biosolids—sewage sludge and digestate—could be recognized as a nutrient substitute without crop yield losses. Nitrogen application had the greatest impact on the external GHG emissions and it was responsible for 54% of these emissions. CO2eq emissions decreased by 14 and 11%, respectively, when sewage sludge and digestate were applied. This fertilization practice represents a promising strategy for low C agriculture and could be recommended to provide sustainable sorghum production as a bioenergy crop to mitigate GHG emissions.

Whole-farm systems analysis of Australian dairy farm greenhouse gas emissions

2012 ◽  
Vol 52 (11) ◽  
pp. 998 ◽  
Author(s):  
K. M. Christie ◽  
C. J. P. Gourley ◽  
R. P. Rawnsley ◽  
R. J. Eckard ◽  
I. M. Awty
Keyword(s):  
Waste Management ◽  
Greenhouse Gas ◽  
Milk Production ◽  
Linear Regression Analysis ◽  
Ghg Emissions ◽  
Methane Emissions ◽  
Nitrous Oxide Emissions ◽  
Animal Waste ◽  
Enteric Fermentation ◽  
Emissions Intensity

The Australian dairy industry contributes ~1.6% of the nation’s greenhouse gas (GHG) emissions, emitting an estimated 9.3 million tonnes of carbon dioxide equivalents (CO2e) per annum. This study examined 41 contrasting Australian dairy farms for their GHG emissions using the Dairy Greenhouse Gas Abatement Strategies calculator, which incorporates Intergovernmental Panel on Climate Change and Australian inventory methodologies, algorithms and emission factors. Sources of GHG emissions included were pre-farm embedded emissions associated with key farm inputs (i.e. grains and concentrates, forages and fertilisers), CO2 emissions from electricity and fuel consumption, methane emissions from enteric fermentation and animal waste management, and nitrous oxide emissions from animal waste management and nitrogen fertilisers. The estimated mean (±s.d.) GHG emissions intensity was 1.04 ± 0.17 kg CO2 equivalents/kg of fat and protein-corrected milk (kg CO2e/kg FPCM). Enteric methane emissions were found to be approximately half of total farm emissions. Linear regression analysis showed that 95% of the variation in total farm GHG emissions could be explained by annual milk production. While the results of this study suggest that milk production alone could be a suitable surrogate for estimating GHG emissions for national inventory purposes, the GHG emissions intensity of milk production, on an individual farm basis, was shown to vary by over 100% (0.76–1.68 kg CO2e/kg FPCM). It is clear that using a single emissions factor, such as milk production alone, to estimate any given individual farm’s GHG emissions, has the potential to either substantially under- or overestimate individual farms’ GHG emissions.

scholarly journals Prediction of Greenhouse Gas Emissions in Municipal Solid Waste Landfills Using LandGEM and IPCC Methods in Yazd, Iran

2020 ◽  
Author(s):  
Mehdi Mokhtari ◽  
Aliasghar Ebrahimi ◽  
Salimeh Rezaeinia
Keyword(s):  
Greenhouse Gas ◽  
Negative Impact ◽  
Global Climate ◽  
Landfill Gas ◽  
Ghg Emissions ◽  
Methane Emissions ◽  
Prevention Measures ◽  
Intergovernmental Panel ◽  
Gas Emissions ◽  
Climate Conditions

Introduction: The increase in greenhouse gas (GHG) emissions has changed the global temperature and had a negative impact on global climate conditions. Landfill gas is one of the major GHG contributors. With the knowledge of GHG inventory, it is possible to carry out disaster prevention measures. Materials and Methods: In this study, tow Landfill Gas Emissions Modeling (LandGEM) and Intergovernmental Panel on Climate Change (IPCC), were used to determine the GHG quantity of the Yazd county landfill sector using from 2000 to 2020. Results: During this period, by the IPCC model, the total level of methane emissions from the Yazd county landfill was 23.17 Giga gram/y (Gg/y), while based on the LandGEM model, the total value of methane emissions from the Yazd county landfill was 5.74 Gg/y. The total amount of CO2 in the Yazd county landfill of the years 2000–2020 is estimated to be 15.75 Gg/y in the LandGEM model. There is the potential to generate 11.88 MWh/year electricity for the Yazd county landfill in 2020. Conclusion: The results of the present study can be employed to plan and implement a system for collecting methane gas and control the emission of GHG to landfills.

scholarly journals Pemanfaatan Limbah Tani, Ternak dan Konsorsium kapang selulolitik Pada Produksi Biogas Di Desa Puntukdoro Magetan Melalui Program Pengembangan Desa Mitra

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Pujiati Pujiati ◽  
Nurul Kusuma Dewi ◽  
Dimas Setiawan
Keyword(s):  
Alternative Energy ◽  
Negative Impact ◽  
Biogas Production ◽  
Agricultural Waste ◽  
Monitoring And Evaluation ◽  
Community Services ◽  
Public Understanding ◽  
Organic Fertilizers ◽  
High Price ◽  
Livestock Waste

AbstrakDesa Puntukdoro merupakan desa mitra dan binaan Universitas PGRI Madiun. Desa ini memiliki beberapa permasalahan diantaranya limbah ternak yang digunakan tanpa diolah dan hal tersebut dapat menyebabkan pencemaran lingkungan dan dampak kesehatan, minimnya suplay pupuk yang menyebabkan mahalnya harga pupuk di daerah ini, Hal tersebut menyebabkan petani yang sering merugi. Produksi biogas merupakan salah satu solusi dari permasalahan yang ada, selain menghasilkan energi terbarukan produksi biogas menghasilkan limbah outlet/slurry yang potensial dimanfaatkan untuk pupuk organic yang dapat memperbaiki struktur tanah. Tim pelaksan ajuga memiliki konsorsium kapang selulolitik hasil riset yang dapat digunakan untuk optimalisasi produksi biogas jika menggunakan limbah pertanian. Pelaksanaan Program Pengembangan Desa Mitra/PPDM ini dimulai dari survey, koordinasi, sosialisasi, aplikasi program yang meliputi instalasi reactor biogas, monitoring dan evaluasi. Setelah pelaksanaan PPDM ini banyak sekali dampak positif yang dihasilkan antara lain meliputi 1) Peningkatan pemahaman masyakat terkait pemanfaatan limbah pertanian dan peternakan untuk produksi biogas; 2) Peningkatan pemahaman masyarakat terkait dampak negatif pembuangan limbah peternakan ke sungai; 3) Ketersediaan energi alternative yang ramah lingkungan; 4) ketersediaan pupuk organic berkualitas; 5) Peningkatan kualitas dan kuantitas hasil pertanian; 6) peningkatan kesejahteraan masyarakat.Kata Kunci: biogas, kapang seluloltitik, limbah pertanian, peternakan, PuntukdoroAbstractPuntukdoro is a partner village and fostered by the Universitas PGRI Madiun. This village has several problems including livestock waste which is used without being processed and this can cause environmental pollution and health impacts, the lack of fertilizer supply causes the high price of fertilizers and this is also causes the farmer suffer losses. Biogas production is one of solution to the existing problems, in addition to producing renewable energy, biogas production produces slurry waste which is potential to be used as organic fertilizers. This slurry also can improve the soil structure. The community services team also has a consortium of cellulolytic molds from their research that can be used to optimize biogas production when using agricultural waste. The implementation of PPDM starts from surveys, coordination, socialization, application of the program which includes the installation of a biogas reactor, monitoring and evaluation. After the implementation of PPDM, many positive impacts resulted, including: 1) Increasing public understanding regarding the use of agricultural and livestock waste for biogas production; 2) Increasing public understanding regarding the negative impact of dumping livestock waste into rivers; 3) Availability of environmentally friendly alternative energy; 4) availability of quality organic fertilizers; 5) Increasing the quality and quantity of agricultural products; and 6) increasing community welfare.

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