scholarly journals Carbon-based stock feed additives: a research methodology that explores ecologically delivered C biosequestration, alongside live weights, feed use efficiency, soil nutrient retention, and perennial fodder plantations

2010 ◽  
Vol 90 (2) ◽  
pp. 183-187 ◽  
Author(s):  
Mark P McHenry
Keyword(s):  
Research Methodology ◽  
Soil Nutrient ◽  
Nutrient Retention ◽  
Feed Additives ◽  
Use Efficiency ◽  
Stock Feed ◽  
Carbon Based

The effect of riparian restoration on channel complexity and soil nutrients

2017 ◽  
Vol 68 (11) ◽  
pp. 2041 ◽  
Author(s):  
J. Patrick Laceby ◽  
Nina E. Saxton ◽  
Kate Smolders ◽  
Justine Kemp ◽  
Stephen J. Faggotter ◽  
...  
Keyword(s):  
Soil Nutrients ◽  
Riparian Vegetation ◽  
Soil Nutrient ◽  
Nutrient Retention ◽  
River Channel ◽  
Channel Width ◽  
Riparian Restoration ◽  
Nitrogen And Phosphorus ◽  
Elemental Geochemistry ◽  
Channel Complexity

Restoration of riparian vegetation may reduce nutrient and sediment contamination of waterways while potentially enhancing stream channel complexity. Accordingly, the present study used a paired-site approach to investigate the effects of mature regrowth riparian vegetation on river channel morphology and soil nutrients (i.e. nitrogen and phosphorus), comparing four sites of degraded (pasture) and reforested reaches. A revised rapid assessment of riparian condition (RARC) was used to validate the site pairings. Riparian soil nutrient and elemental geochemistry were compared between paired sites, along with two parameters of channel width complexity and two for channel slope complexity. The RARC analysis confirmed the validity of the paired site design. The elemental geochemistry results indicated that underlying geology may affect the paired site analyses. Reaches with mature regrowth vegetation had greater channel width complexity but no difference in their riverbed slope complexity. In addition, degraded reaches had higher soil nutrient (i.e. nitrogen and phosphorus) concentrations, potentially indicative of the greater nutrient retention of pasture grass sites compared with mature regrowth forested reaches with less ground cover. Overall, the present study indicates that restoring mature regrowth riparian vegetation may increase river channel width complexity, although it may require canopy management to optimise the nutrient retention potential necessary to maximise the effect of riparian restoration strategies on freshwater environments.

scholarly journals Effect of different levels of customized fertilizer on soil nutrient availability, yield and economics of onion

2015 ◽  
Vol 7 (2) ◽  
pp. 817-821 ◽  
Author(s):  
B. M. Kamble ◽  
D. K. Kathmale
Keyword(s):  
Nutrient Availability ◽  
Soil Nutrient ◽  
Recommended Dose ◽  
Soil Nutrient Availability ◽  
Available Nitrogen ◽  
Fertilizer Use ◽  
Use Efficiency ◽  
Equal Split ◽  
Different Levels ◽  
Time Of Harvest

A field experiment was conducted to study the effect of different levels of customized fertilizer (CF) on soil nutrient availability, yield and economics of onion. The results revealed that the significantly highest plant height (57.77cm), stem diameter (6.03cm) and bulb diameter (15.13cm) at the time of harvest, fertilizer use efficiency,bulb yield (22.34 t ha-1) and benefit:cost ratio (2.56) of onion were recorded in 100 % recommended dose of NPK through CF in three equal split doses. The significantly highest available nitrogen (213 kg ha-1), phosphorus (14.42 kg ha-1) were recorded in 125 % recommended dose of NPK through CF in two equal split doses and available K (804 kg ha-1) in 100 % recommended dose of NPK through CF in three equal split doses over the rest of the other treatments. The application of 100% recommended dose of fertilizer (100:50:50 N:P2O5:K20 kg ha-1) either two or three splits through CF to onion appears to be improving soil fertility, yield and yield contributing character of onion and getting higher net monetary returns.

scholarly journals Nitrogen Use Efficiency for Growth of Fagus crenata Seedlings Under Elevated Ozone and Different Soil Nutrient Conditions

Forests ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 371 ◽  
Author(s):  
Makoto Watanabe ◽  
Hiroka Hiroshima ◽  
Yoshiyuki Kinose ◽  
Shigeaki Okabe ◽  
Takeshi Izuta
Keyword(s):  
Nitrogen Use Efficiency ◽  
Soil Nutrient ◽  
Nutrient Supply ◽  
Fagus Crenata ◽  
Nitrogen Use ◽  
Elevated Ozone ◽  
Forest Production ◽  
Leaf Level ◽  
Use Efficiency ◽  
Nutrient Conditions

Ozone is a phytotoxic gaseous air pollutant and its negative effects on forest production are a major concern. To understand the effects of ozone on forest production, it is important to clarify the nitrogen use efficiency (NUE) for tree growth under elevated ozone conditions, because nitrogen is a primal limiting factor of forest production in many cool-temperate forests. Soil nutrient conditions are considered factors affecting ozone susceptibility of tree growth. Therefore, in the present study, we investigated the effects of ozone on NUE for the growth of Siebold’s beech (Fagus crenata Blume) seedlings grown under different soil nutrient conditions. Seedlings of Siebold’s beech were grown under three gas treatments (charcoal-filtered air or ozone at 1.0 or 1.5 times the ambient concentration) in combination with three soil nutrient conditions (non-fertilised, low-fertilised or high-fertilised) for two growing seasons. Based on the dry mass and nitrogen concentration in each plant organ, we calculated NUE and its components, including nitrogen productivity (NP) and the mean residence time of nitrogen (MRT) during the second growing season. Ozone did not decrease the NUE of the seedlings during the second growing season, whereas leaf level photosynthetic nitrogen use efficiency (PNUE), a component of NP, was decreased by ozone. On the other hand, the soil nutrient supply decreased the NUE of the seedlings. Reductions in both NP and MRT were attributed to the decrease in NUE because of soil nutrient supply, whereas PNUE did not respond to soil nutrient supply. There was no significant interaction of ozone and soil nutrient supply on the NUE, or its components, of the seedlings. Our results indicated that there is a difference in the response between the NUE for individual growth and that of leaf level PNUE of Siebold’s beech seedlings to ozone and soil nutrient supply.

scholarly journals Effects of Bark Beetle Disturbance on Soil Nutrient Retention and Lake Chemistry in Glacial Catchment

Ecosystems ◽  
2018 ◽  
Vol 22 (4) ◽  
pp. 725-741 ◽  
Author(s):  
Filip Oulehle ◽  
Richard F. Wright ◽  
Miroslav Svoboda ◽  
Radek Bače ◽  
Karel Matějka ◽  
...  
Keyword(s):  
Bark Beetle ◽  
Soil Nutrient ◽  
Nutrient Retention ◽  
Lake Chemistry

scholarly journals PSV-35 Broiler chicken meat quality

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 294-294
Author(s):  
Kirill Plemyashov ◽  
Alexander Aristov ◽  
Sergey Semenov ◽  
Natal’ya Kudinova ◽  
Polina Anipchenko ◽  
...  
Keyword(s):  
Quality Improvement ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Dry Matter ◽  
Feed Additives ◽  
Biologically Active ◽  
Feed Additive ◽  
Control Group ◽  
Use Efficiency ◽  
Product Quality Improvement

Abstract Over recent years, the range of biologically active substances aimed at the productivity increase, animals preservation, feed use efficiency, product quality improvement and product safety has been significantly expanded. In this regard, the study of the effectiveness of hepatoprotective farm-produced feed additives in the diets of broiler chickens is of particular interest to science and practice. The broiler chickens pectoral muscles of the control group contained 68–0.08% of water, 32–0.06% of dry matter, 20.45–0.08% of protein, and 1.62–0.09% fat. In a comparative analysis of the obtained data, it may be concluded that the use of the feed additive Hepatron 85% as a hepatoprotector improves the detoxification ability of the liver and promotes the regeneration of the liver cells. Betaine as a lipotropic agent contributes to the fat oxidation, enhances appetite, and adds muscle mass. When determining the chemical composition of the muscles of the leg, thigh, body, wings and neck, it was established that the broiler chickens of the experimental group contained 70–0.07% of water, 30–0.05% of dry matter, 19.7±0.08% of protein and 2.11±0.09% of fat. Using the feed with the additive Hepatron 85% causes a 0.5% increase in protein and 0.18% increase in fat compared to the meat of the broiler chickens on general feed. Thus, the inclusion of the feed additive Hepatron 85% in the ration of broiler chickens instead of 50% of methionine and choline contributes to an increase in average daily gains and meat quality improvement in a number of indicators.

Carbon Transformations of Biochar Based Co-Composting - A Review

2020 ◽  
Vol 17 ◽  
Author(s):  
Balaganesh Pandiyan ◽  
Vasudevan Mangottiri ◽  
Natarajan Narayanan
Keyword(s):  
Crop Production ◽  
Agricultural Practices ◽  
Soil Nutrient ◽  
Nutrient Retention ◽  
Crop Productivity ◽  
Climatic Conditions ◽  
Future Research ◽  
Experimental Conditions ◽  
Integral Role ◽  
Morphological Transformations

Abstract:: Biochar-Amended Composting (BAC) plays an integral role in sustainable agricultural practices due to its multiple benefits in crop production, soil nutrient retention, carbon sequestration and environmental protection. Although accepted as a traditional method, there is lack of understanding in defining its suitability and efficiency on various base-materials and conditions. Being two carbon-based entities with plentiful nutrients and surface activity, biochar and compost find application in agricultural fields together or separately for improving the soil properties and crop productivity. Recent studies focus on defining the optimum conditions for their preparation, mixing, application and monitoring under various feed, soil, crop and climatic conditions. However, due to the complexity and specificity of the system, many influencing aspects of their interaction are yet unknown in detail. In this review, we analyze the recent advancements in the selection and preparation of new materials for BAC, and explain the mechanisms of Organic Matter (OM) degradation/sequestration happening in soil based on possible chemical/morphological transformations of organic carbon. Most of the performance results are in agreement with the previous records, but a few contradictions observed under diverse experimental conditions. In general, BAC enhanced the mineralization of carbon and sequestration of heavy metals, and stabilized labile fraction of OM due to the development of carbonyl, phenolic and aromatic functional groups on its surface. In addition, aging of biochar resulted in stable N-C=O and amino groups for the adsorption of nitrogen compounds thus decreasing the potential greenhouse gas emissions. The study further identifies potential future research gaps in this area.

IoT to inculcate Smart Farming and Soil Nutrient Retention

2021 ◽  
Author(s):  
Gagandeep Singh Kukreja ◽  
V. Bagyaveereswaran ◽  
Siddhartha Menon ◽  
Gargi Agrawal
Keyword(s):  
Soil Nutrient ◽  
Nutrient Retention ◽  
Smart Farming
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