scispace - formally typeset
Search or ask a question

How to add organic matter to pasture? 

Answers from top 15 papers

More filters
Papers (15)Insight
Proper management of grazing promoted increased levels of particulate organic matter by association with larger aggregates (2–8 mm), demonstrating the importance of the formation of this aggregate class for C protection in pasture.
These new concepts lend support to agricultural management approaches that promote continued input of labile organic substrates as a means to build soil organic matter for fertility and environmental goals, such as carbon sequestration.
Lower ratios of net mineralized N to total organic N in both grazed compared to nongrazed treatments suggest that long-term grazing decreased the readily mineralizable fraction of soil organic matter.
Application of organic and inorganic fertilizers on natural pasture generally showed very good yield responses and have a great effect on botanical composition and quality of pasture species.
To improve soil fertility, efforts need to be made to increase soil organic matter content.
Balanced and integrated use of organic and inorganic fertilizers may enhance the accumulation of soil organic matter and improves soil physical properties.
Annual rates of immobilisation of nitrogen, sulphur, and phosphorus in organic forms may be quantitatively important when compared with the amounts needed to maintain good pasture growth.
The results indicate that additions of organic matter from various sources differ in the effects on soil organic matter and biological activity.
The experimental results showed that the soil organic matter appeared efficient in discriminating soil quality between degraded forest/pasture, as well as between degraded capoeira/pasture.
A further benefit of this strategy is an increase in soil organic matter.
Pasture management can have important implications on the amounts and long-term stability of soil organic carbon (SOC).
The decomposition and subsequent mineralisation of the relatively N-rich organic matter fractions in the pasture system may have contributed to the significantly (P < 0.05) greater DOC, DON, and SMN concentration measured in soil solutions under pasture compared with those under native bush.
However, the potentially mineralisable organic N is increasing, which requires a further monitoring of the soil N dynamic as the pasture ages.
Reversion of cropland to perennial pasture has also been found to result in discouragingly slow soil organic matter restoration.
Journal ArticleDOI
H. Tiessen, Elvira Cuevas, P. Chacon 
01 Oct 1994-Nature
785 Citations
These observations suggest that quantification of organic-matter cycling may provide an important guide to the agricultural potential of soils.

See what other people are reading

What's the connection between soil compaction and manure?
5 answers
Soil compaction and manure application are intricately linked in agricultural practices. Manure, such as cattle manure, biochar, and compost, when applied to compacted soils, can significantly reduce soil compaction tendencies and improve soil physical quality by decreasing bulk density and increasing total porosity. Additionally, organic matter additions like farmyard manure have been shown to mitigate compaction issues more effectively than green manure, leading to improved soil structure and reduced penetration resistance. Furthermore, the addition of animal manure has been found to increase soil porosity and enhance gas exchange effects, counteracting the negative impact of compaction on soil pore characteristics. Overall, the application of manure plays a crucial role in alleviating soil compaction and enhancing soil health in agricultural systems.
How to prepare soil for microbial analysis?
4 answers
To prepare soil for microbial analysis, various methods can be employed. One approach involves using microfluidic devices like Soil Chips, which mimic soil networks and allow real-time visualization of microbial activity. Another method includes direct 14C analysis of microbial biomolecules extracted from soil, offering an alternative to traditional soil incubations for identifying carbon sources assimilated by microbial communities. Additionally, a method utilizing an Archimedes spiral form on agar plates combined with radiocarbon markers can effectively detect bacterial microbes in soil, providing a simple yet powerful tool for microbial detection. Furthermore, a technique involving the preparation of microorganisms with reduced soil-derived substances for nucleic acid analysis can be implemented using specific electrode potentials and high-frequency wave potentials. Overall, these diverse methods offer valuable insights into microbial communities in soil for comprehensive analysis.
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.
How has China's land use policy impacted the desertification rate in the country?
5 answers
China's land use policy, particularly initiatives like the "grain-for-green" program and grazing exclusion practices, has influenced the desertification rate in the country. The implementation of these environmental programs has led to improvements in fractional vegetation cover (FVC) in desertification-prone regions from the early 2000s to 2020. Additionally, the sensitivity of land desertification in China has been assessed, showing that areas with high desertification sensitivity are mainly concentrated in the northwest, emphasizing the importance of combating desertification through effective land management strategies. Furthermore, the application of machine learning models and remote sensing data has allowed for the monitoring of desertification trends, indicating a decrease in desertification area due to human activities and climatic factors like precipitation from 2000 to 2020. These findings underscore the significance of adapting environmental programs to address future climate change impacts and create positive synergies to combat desertification while improving the economy in desertification-prone regions.
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.
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.
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 does grazing management affect soil organic carbon?
5 answers
Grazing management significantly impacts soil organic carbon (SOC) content. Studies show that grazing can lead to both decreases and increases in SOC levels depending on factors like grazing intensity and management practices. Moderate grazing intensities have been associated with higher SOC stocks and fractions, emphasizing the importance of proper management. However, excessive grazing can result in SOC loss, especially in certain climate zones. Additionally, the microbial community in the soil plays a crucial role in SOC stability, with changes in bacterial diversity and community assembly affecting SOC levels within different aggregate sizes. Overall, proper grazing management practices, such as moderate grazing intensity and strategic land-use planning, are essential for maintaining or enhancing SOC levels in grassland ecosystems.
Does crop rotation increase carbon sequestration in the soil? australia?
4 answers
Crop rotation has shown to increase carbon sequestration in soil. Studies indicate that diversified organic rotations with grass-clover leys and compost fertilization enhance soil carbon stocks, especially in subsoil layers. Additionally, rotating cropping systems have been found to improve water storage, increase dry matter production, and enhance soil organic carbon sequestration rates compared to continuous cropping systems like wheat or maize. Cover cropping can also contribute to carbon sequestration, with the effectiveness depending on the cover crop carbon input exceeding certain thresholds to ensure significant net carbon increases. Furthermore, the stability of carbon preservation in soil under C3-C4 rotations has been observed, with no-tillage practices favoring wheat carbon preservation, particularly at deeper soil depths. Overall, implementing diverse crop rotations and appropriate management practices can effectively enhance carbon sequestration in Australian soils.
How to measure the effectiveness of a pond for erosion reduction?
4 answers
To measure the effectiveness of a pond for erosion reduction, various methods can be employed. One approach involves installing sediment ponds to capture runoff and suspended sediment, which can significantly reduce sediment and total phosphorus losses from furrow-irrigated fields. Additionally, the use of sieve structures in gullies can help trap sediment, thereby reducing erosion and improving ground cover. Studies have shown that the installation of baffles made of specific materials, such as jute germination blanket backed by coir fiber, can enhance sediment trapping effectiveness in ponds by diffusing flow and improving sediment retention. Furthermore, analyzing erosion and sediment transport patterns with and without ponds can provide insights into the impact of ponds on reducing erosion risks and sediment yields in a basin.