scispace - formally typeset
Search or ask a question

Answers from top 15 papers

More filters
Papers (15)Insight
This study suggests that the effect of organic matter varied depending on the organic material properties and the type of viruses involved.
The results indicate that additions of organic matter from various sources differ in the effects on soil organic matter and biological activity.
Our finding that slower-cycling organic matter was negatively related to yield points to a need to revise the view that stabilization of organic matter positively impacts food security.
Some constituents of organic matter decompose very quickly and others much more slowly, but both types are important in maintainingfavorable soil conditions and productivity.
The results indicated that there is improvement in soil organic matter, microbial activities and crop yields due to the use of chemical fertilizers along with organic manures.
organic matter and calcite, which are in excellent agreement with the results in the literature.
Thus we can conclude that in the Michigan soils, dissolved organic matter contributes significantly to transport of Al and Fe, but essentially without illuviation of organic matter in the B.
The results obtained in this study suggest that organic matter including po...
The organic matter was probably removed by heterotrophic microorganism activity.
We conclude that two pathways yield soil organic matter efficiently.
Digestibilities of organic matter (O. M.)
This study shows the ameliorative effect of organic matter addition in ASS.
The results further confirmed the connection between organic matter...
These results indicate that the organic matter-related resources mar...
Especially feces that are residues utterly scorned, and its energetic power totally disregarded.

Related Questions

What is soil organic matter?5 answersSoil organic matter (SOM) is a complex component crucial for soil management and carbon preservation. It consists of various organic carbon compounds, including humic substances derived from plant and animal residues through mineralization and humification processes. SOM is evolving from a molecular phase to a dynamic system component, with distinct categories like organismic, xenobiotic, and pyrogenic carbon forms. SOM interacts with proteins excreted by soil organisms, affecting structural stability through electrostatic and van der Waals forces, with aggregation influenced by the size and charge of molecules. It plays a vital role in the carbon cycle, with SOC being the largest carbon stock in terrestrial ecosystems, influenced by processes like stabilization vs. mineralization and factors such as climate and soil properties. Organic soils, like Histosols, store a significant amount of terrestrial soil carbon, highlighting the importance of SOM in global carbon storage.
What is animal based organic matter?4 answersAnimal-based organic matter refers to organic materials derived from animals that are used for various purposes. These materials can include animal excreta, such as cow dung or pig manure, and animal urine, such as bovine urine or swine urine. They can also include plant-derived organic matters and animal-derived organic matters that are used in the treatment of livestock and poultry manure. Animal-based organic matter can be used in the preparation of fertilizers, where it is combined with other materials like straw and core materials to create high-quality organic matter. Additionally, animal-based organic matter can be used in the process of coagulation for water treatment, where it is added to a reaction kettle along with plant-derived organic matters to remove natural organic matter from water. The application of animal-based organic matter, such as livestock manure compost, can also have a positive impact on soil organic matter content and composition. Overall, animal-based organic matter offers a sustainable and environmentally friendly alternative for various applications in agriculture and waste management.
Organic waste as?4 answersOrganic waste refers to waste generated from the use of organic materials in various daily lives. It includes household waste such as vegetable residue, fruit peels, and yard sweepings. Valorisation of organic wastes is a sustainable and cost-effective alternative for chemical production and waste disposal management. It involves using organic waste as a substitute for expensive fermentation medium components, leading to the production of high volume-low value products such as bio-acetic acid and oil-rich fish/animal feed. Organic waste can also be used to improve plant growth by fermenting it anaerobically and using it as liquid organic fertilizer. Different organic wastes have different nutrient characteristics and plant growth regulator levels, making them suitable for application in agriculture. Solid waste, including organic waste, has become a significant problem due to population growth and urbanization. The valorization of organic solid waste is crucial for effective waste management and reducing municipal budget burdens. Agricultural organic solid waste can be recycled to reduce waste and create new income sources, contributing to the development of the agricultural sector.
Is all food organic matter?9 answers
Is mold considered organic matter?2 answers
Is organic matter considered litter?7 answers

See what other people are reading

How plant species affect soil carbon sequestration in desert and dry lands?
4 answers
Plant species play a crucial role in soil carbon sequestration in desert and dry lands. Different species exhibit varying impacts on soil properties and carbon storage. Native and introduced woody species like Populus euphratica, Tamarix ramosissima, Eucalyptus camaldulensis, and Prosopis juliflora have been studied for their effects on soil carbon sequestration in arid regions. The presence of woody species has been shown to enhance soil organic matter content and total nitrogen, leading to increased carbon sequestration beneath their canopies. Additionally, certain species like Balanites aegyptiaca have been identified for their ability to sequester carbon efficiently in drought-prone and degraded areas. Overall, plant species influence soil properties, organic matter content, and carbon sequestration rates, highlighting the importance of species selection for enhancing carbon storage in arid ecosystems.
What factors influence the distribution of estuaries along coastlines?
5 answers
The distribution of estuaries along coastlines is influenced by various factors. These include the interaction between hydrodynamic processes and morphology, the dominant processes affecting sedimentation (waves, tides, rivers), and the influence of salinity on sedimentary processes. Additionally, prevailing winds play a role in shaping estuarine landforms, with sediment transport being controlled by shoreline configuration relative to wind direction. Edaphic factors such as soil salinity, moisture, pH, and organic matter also significantly impact vegetation patterns in coastal deltas. These factors collectively determine the distribution and characteristics of estuaries along coastlines, highlighting the complex interplay between geological, hydrodynamic, and environmental variables.
What is the optimal quantity of organic matter in anaerobic digestion?
4 answers
The optimal quantity of organic matter in anaerobic digestion depends on the specific mixture of substrates used. Research has shown that a higher mixing ratio of food waste can result in a higher methane yield, leading to improved biodegradability and volatile solids removal rate. Mathematical models have been developed to optimize the anaerobic co-digestion process, considering factors like carbon, nitrogen, lipid, and lignin content in organic wastes. For instance, in a study focusing on different fractions of organic wastes, the optimal mixtures were determined to maximize biogas production, with specific percentages of various waste components identified for higher yields. Additionally, the feasibility of using simultaneous mass balances of different nutrients has been evaluated to optimize feeding composition in anaerobic digestion, showcasing the importance of balancing nutrient ratios for efficient organic matter degradation.
Why farmers belief that more fertilizer is better yield?
5 answers
Farmers believe that more fertilizer leads to better yields due to various reasons supported by research. Studies show that fertilizer plays a crucial role in improving agricultural productivity. Globally, fertilization has increased crop yields significantly, with a 30 to 50% increase attributed to fertilizers. In China, the fertilizer contribution rate to cereal crop yield was 40.8%, emphasizing the importance of fertilizers in enhancing productivity. Farmers' dependence on fertilizers is driven by the need to meet increasing agricultural demands due to population growth. Additionally, research highlights that balanced nutrient management practices, including proper fertilizer application, are essential for optimizing crop yields. Therefore, farmers' belief in the effectiveness of more fertilizer stems from the proven impact of fertilizers on enhancing soil fertility and ultimately improving agricultural yields.
How does the phenomenon of acid rain indirectly affect the risk to human health from mercury, lead, and calcium?
4 answers
The phenomenon of acid rain indirectly affects the risk to human health from mercury, lead, and calcium through various mechanisms. Acid rain, caused by emissions like sulfur dioxide and nitrogen oxide, can lead to the mobilization of mercury in contaminated soils, impacting ecosystems and human health. Additionally, acid rain can contribute to the degradation of buildings and cultural heritage materials, releasing lead and calcium into the environment. The interaction of acid rain with different precipitation forms can further exacerbate the release of these harmful elements into ecosystems, affecting human health through contaminated water sources and food chains. Therefore, the effects of acid rain on soil contamination and infrastructure degradation play a significant role in indirectly influencing the risk to human health from mercury, lead, and calcium.
Does aboveground biomass increases result in root exudation and fine root growth?
4 answers
Aboveground biomass increases can influence root exudation and fine root growth. Studies show that in artificially restored grasslands, an increase in aboveground biomass due to mowing led to enhanced root production and turnover, indicating a positive relationship between aboveground biomass and belowground productivity. Additionally, in a Eucalyptus woodland, fine root biomass was positively related to aboveground herbaceous biomass, suggesting a connection between aboveground and belowground plant components. Furthermore, the dynamics of fine roots in forests were influenced by above-ground biomass, highlighting the interplay between aboveground and belowground components in forest ecosystems. Therefore, an increase in aboveground biomass can indeed result in enhanced root exudation and fine root growth, showcasing the intricate relationship between aboveground and belowground processes in plant ecosystems.
What are the limitations of traditional soil-based onion cultivation in th philippines?
4 answers
Traditional soil-based onion cultivation in the Philippines faces several limitations. Farmers often encounter challenges such as rising costs of imported farm inputs, limited farm mechanization, shortage of laborers, weather conditions affecting harvest volumes, and suspicions of price manipulation by traders. Additionally, hazards from biological and chemical factors in onion cultivation areas, such as bacterial contamination on workers' hands and equipment, can pose risks. Moreover, conventional tillage systems contribute to soil degradation, reducing organic carbon and nitrogen content, impacting soil quality and stability. These limitations highlight the need for sustainable practices like vertical farming and hydroponic systems, which offer financial, socio-economic, and environmental benefits, potentially overcoming the constraints of traditional soil-based cultivation.
What is rates of vermicompost recommendation for field crops ?
5 answers
The recommended rates of vermicompost for field crops vary depending on the specific crop and study. In fragrant rice production, a study suggests that the optimal vermicompost rate is 3.0 t ha−1, significantly increasing grain yield. For maize cultivation, a combination of 5 t ha-1 vermicompost and 50 kg ha-1 NPS fertilizer showed a substantial increase in yield, outperforming sole applications. In soilless cultivation of water spinach, using 500g of solid vermicompost per polybag resulted in significantly higher plant growth and yield compared to control treatments. Similarly, for tef cultivation, the application of 4 t ha-1 vermicompost along with 150 kg ha-1 NPS fertilizer was found to be profitable, yielding the highest marginal rate of return. These studies collectively suggest that vermicompost rates between 3.0 t ha−1 to 5 t ha-1, depending on the crop and specific conditions, can enhance crop productivity.
Is soil conditioning necessary before applying biofertilizer for optimal microbial survival and effectiveness?
5 answers
Soil conditioning before applying biofertilizer is crucial for optimal microbial survival and effectiveness. Pre-conditioning the growth medium with biochar enhances microbial diversity and activity, promoting plant performance and disease suppression. Additionally, a biofertilizer containing a soil conditioner along with various organic and inorganic components ensures high-quality nutrients and trace elements, aiding in sustainable agriculture development. Moreover, a microbial composite soil conditioning fertilizer accelerates stalk decomposition and improves nutrient absorption by crops, ultimately enhancing microbial agents' effectiveness. The early response of soil quality to mineral fertilizers amended with microbes highlights the importance of biofertilizer addition in degraded soils to increase biological activity, especially in soils with contrasting textures. Therefore, soil conditioning plays a vital role in preparing the soil for biofertilizer application, optimizing microbial survival, and enhancing overall effectiveness.
How intercropping affects peatland?
5 answers
Intercropping in peatlands can have significant impacts on the ecosystem. It can enhance CO2 absorption, increase photosynthetic efficiency, and boost biomass production, which helps in maintaining soil organic matter and preventing erosion. Intercropping, especially during the early stages of oil palm plantations, can ameliorate some negative environmental impacts by preserving carbon and peat functional properties. However, long-term drainage and intercropping in tropical peatlands may lead to alterations in phosphorus dynamics, potentially depleting soil P content and affecting P availability. Intercropping systems on peatland do not significantly affect the productivity and nutritive value of certain crops, with some combinations showing increased yields compared to monoculture systems. Overall, intercropping can play a crucial role in sustainable agricultural development on peatlands by enhancing ecosystem functions and mitigating environmental degradation.
How is soil currently utilized in agricultural practices?
4 answers
Soil is crucial in current agricultural practices for sustainable development, aligning with UN SDGs and the EU Green Deal. Farmers adopt various Agricultural Management Practices (AMPs) like crop rotation, manuring, and composting to sustain productivity and improve soil quality. The expansion of cultivated areas in South America has led to changes in soil management, emphasizing the need to prevent degradation through practices like no-tillage and improved soil fertility. Sustainable agriculture focuses on enhancing soil health by increasing organic matter content, recycling nutrients, and utilizing beneficial microorganisms. Additionally, the use of sewage sludge in agricultural soils is seen as a desirable method to replenish organic matter resources, although it poses threats like heavy metals and organic pollutants. Overall, soil plays a vital role in modern agricultural systems by supporting food production, ensuring soil health, and contributing to environmental sustainability.