TAILIEUCHUNG - Influence of different extraction and fractionation periods on humic acid yield derived from pressmud and vermicompost

Humic acids (HA) are widely used in agriculture because of their capability as chelator, organic matter, and soil improver and growth promoter. However, their isolation differs in terms of origin or source because of wetting and solubilisation factors. This study was conducted to determine extraction period for HA from organic sources. Standard procedures were used to extract HA from pressmud (PM) and vermicompost (VC) at different extraction periods of 4, 8, 12, 16, 20 and 24 hours and fractionation periods (3, 6, 9, 12, 15, 18, 21& 24 hrs). At the end of each extraction period, samples were centrifuged, followed by fractionation and purification. HA yield at different extraction periods was determined using standard procedures. The relationship between extraction period and HA yield was quadratic. Extraction and fraction period for PM & VC was 24 hours and purification (done in 1 h) using distilled water was effective in removing impurities. HA from PM and VC can be extracted and fractionated in 24 hours and purification can be done in one hour. | Influence of different extraction and fractionation periods on humic acid yield derived from pressmud and vermicompost

• Sinh học
• Humic acid
• Extraction and fractionation period
• Fractionation period
• Pressmud and vermicompost
• Humic acid yield derived
• Journal of Science and Technology
• Partition of polycyclic aromatic hydrocarbons
• Water sediment system containing humic acid
• Nordic aquatic humic acid
• Three phase partitioning model
• Simple method of purification
• Purification of humic acid isolated
• Humic acid isolated
• Press mud
• Simple method
• Nutrient uptake and yield
• Chickpea to application
• Humic acid along with vermicompost
• Uptake of nutrients
• Yield attributes and yield
• Soil microbial population
• Enzymatic activity
• Humic acid on soil microbial population
• Micronutrient and yield
• Cucumber (Cucucmis sativus L )
• Performance of cucumber
• Influenced by humic acid
• Micro nutrients application
• Polyhouse condition
• Poultry manure
• Coffee pulp
• Fortified humic acid
• Quality of capsicum
• Bio stimulants
• Application of humic acid
• Vermiwash on the growth
• Yield of plants
• Fulvic acid
• Functional groups
• Carboxyl group and phenolicOH group) E4/E6 ratio
• Humic substances by functional groups
• Spectroscopic methods
• Surface grafting
• Poly ethylene glycol
• Màng composit biến tính bề mặt
• Khả năng tách loại axit humic trong nước
• Bức xạ UV
• Performance of H2O2 aerated biofilter
• Treatment of wastewater containing humic acid
• Modified aerated biofilter
• Chemical oxygen demand
• Arbuscular mycorrhizal fungi
• Solanaceous crops
• Spore density
• Vegetables grown
• Exogenous glycinebetaine
• Drought stress
• Antioxidant responses
• Malus robusta seedlings
• Quá trình xử lý đồng
• Xử lý đồng
• Xử lý Coban
• Bentonite biến tính bằng acid Humic
• Biến tính bentonite
• Ủ hoai vỏ cà phê
• Khả năng tạo chùm cà phê
• Hàm lượng acid humic
• Chế phẩm E
• Chế phẩm Trichoderma
• Farmyard manure
• Metal ions
• Potentiometric titration
• Turkish Journal of Chemistry
• Tạp chí Hóa học
• Humic acid removal
• Ultrasound assistance
• PMS activation
• Synergy index
• Soil organic material
• Crop production
• Anthropogenic compounds
• Capable of protecting living cells
• Integrated nutrient management
• Humus fraction
• Organic carbon
• Total carbon
• báo cáo khoa học
• nghiên cứu khoa học
• ion kim loại nặng
• Khoa học Tự nhiên
• than bùn vùng U Minh
• Moringa leaf extract
• Antioxidant activity
• Phenolic acids
• Plant growth regulators
• Moringa oleifera leaf extract
• Nutrients and Humic Acid
• Arable farming
• Chemical fertilizer
• Greenhouse experiment
• The vegetative growth parameters
• Yield parameters
• Seed production and quality
• Garhwal Himalayas
• Performance of French bean
• French bean (phaseolus vulgaris l
• Seed production
• Dalbergia sissoo
• Physiological parameters
• Micro fertigation system
• High density Dalbergia Sissoo
• Quality parameters and yield
• Quality parameters
• Yield of rainfed sunflower
• Rainfed sunflower (Helianthus annuus L )