Humic substances (HS) are major components of the natural organic matter (NOM) in soil and water as well as in geological organic deposits such as lake sediments, peats, brown coals and shales. They make up much of the characteristic brown color of decaying plant debris and contribute to the brown or black color in surface soils. They are major components of NOM in surface waters and at higher concentrations can impart a dark color, especially in brown fresh water ponds, lakes, and streams. In leaf litter or composts, the color may be yellowish-brown to black, depending on the degree of decay and concentration.
Humic substances are very important components of soil that affect physical and chemical properties and improve soil fertility. In aqueous systems, like rivers, about 50% of the dissolved organic materials are HS that affect pH and alkalinity. In terrestrial and aquatic systems HS affect the chemistry, cycling and bioavailability of chemical elements, as well as transport and degradation of xenobiotic and natural organic chemicals. They affect biological productivity in aquatic ecosystems, as well as the formation of disinfection by-products during water treatment.
Humic substances are complex and heterogeneous mixtures of polydispersed materials formed by biochemical and chemical reactions during the decay and transformation of plant and microbial remains (a process called humification). Plant lignin and its transformation products, as well as polysaccharides, melanin, cutin, proteins, lipids, nucleic acids, fine char particles, etc., are important components taking part in this process.
Humic substances in soils and sediments can be divided into three main fractions: humic acids (HA or HAs), fulvic acids (FA or FAs) and humin. The HA and FA are extracted from soil and other solid phase sources using a strong base (NaOH or KOH). Humic acids are insoluble at low pH, and they are precipitated by adding strong acid (adjust to pH 1 with HCl). Humin cannot be extracted with either a strong base or a strong acid.
Aquatic HS contain only HA and FA and these components are generally removed from water by lowering the pH to 2 and adsorbing both components on a suitable resin column. The HA and FA are extracted from the resin with strong base followed by lowering the pH to 1 to precipitate the HA. The resin column separation is also used to separate FA from the non-humic materials (amino acids, peptides, sugars, etc.) extracted from soils. At low pH the FA adsorbs on the resin, but non-humic materials pass through the column.
Humic substances are highly chemically reactive yet recalcitrant with respect to biodegradation. Most of the data on HA, FA and humin refer to average properties and structure of a large ensemble of components of diverse structure and molecular weight. The precise properties and structure of a given HS sample depends on the water or soil source and the specific conditions of extraction. Nevertheless, the average properties of HA, FA and humin from different sources are remarkably similar.
any liquid and solid organic fertilizer,
ORGANIC
FERTILIZERS
FORMULATIONS
ENCYCLOPEDİA
is enough.
This encyclopedia has many formulations about organic soil conditioner,humic acid productions,compositions,fulvic acid manufacturing,organic fertilizers,animal manure,amino acid organic fertilizers, organomineral powder fertilizers,organomineral liquid fertilizers productions,liquid root growth fertilizers formulas,granular root growth fertilizers,seaweed organic fertilizers,wermicompost fertilizers formulations,gel organic fertilizers,organomineral gel fertilizers manufacturing and any organic fertilizers etc.
All organic fertilizers in the encyclopedia are producible easily.You need no help and no technıcal support. The encyclopedia is enough to produce organic fertilizers itself.
ORGANIC
FERTILIZERS
FORMULATIONS
ENCYCLOPEDIA
is written clear and understandable.
RELATED TAGS: What is organic fertilizer,preparation of organic soil conditioner, liquid organic fertilizer manufacturing,animal manure manufacturing, manufacturing proces of animal manure,chicken manure,efficiency of humic acid in soil,effect of humic acid in plants, advantages of humic acid in agriculture, types of animal manure,seaweed fertilizer manufacturing process,production of liquid seaweed fertilizers, what is organic compost, preparation of organic compost,how to use organic compost,making organic compost, using of seaweed fertilizer,properties of seaweed organic fertilizers how to make liquid organic fertilizers, making organic compost,types of organic compost,manufacturing process of organic compost, how to make organic compost fertilizers, production of organic fertilizers,manufacturing process solid humic acid, formulation of humic acid,value of humic acid,manufacturing process of fulvic acid,how to produce humic acid,what is leoardite,where to use leonardite,types of leonardite,properties of leonardite,analyzes of leonardite,specification of leonardite, values of leonardite, what is leonardite humate,what is potassium humate, liquid humic acid preparation,powder humic acid production, granular soil conditioner manufacturing process, powder soil conditioner making,formulation of organic soil conditioner, making powder humic acid,humic acid production, composition of organic fertilizers,how to use organic fertilizers,why to use organic fertilizer,types of organic fertilizer,benefits of organic fertilizers,wermicompost fertilizers making, powder organic fertilizers,how to use organic fertilizers, making wermicompost fertilizer, formulation of seaweed fertilizers, amino acid fertilizer production,granular organic fertilizer,amino acid organic fertilizer manufacturing, properties of organic fertilizers, analyzes of organic fertilizer, specification of organic fertilizers, where to use organic fertilizers, what is soil amendments, humic acid making, how to make powder humic acid, manufacturing process of fulvic acid, herbal fulvic acid making, liquid humic acid process, formulation of humic acid,organic fertilizers for plants, organic fertilizers in agriculture, how to produce organic fertilizers, animal manure manufacturing process, herbal fertilizers, what is organic fertilizer compost, what is organic agriculture, how to make organic agriculture, advantages of organic fertilizers, effects of organic fertilizer, results of organic fertilizers, indications of organic fertilizers, symptoms of organic fertilizers, preparation of organic fertilizers, calculation of organic fertilizers, compounds of organic fertilizers,composition of liquid organic fertilizers, fertilization of organic fertilizers,why to use organic fertilizers.what is humate, types of humates,benefit of humate,potassium humate manufacturing process.
|
|
|
|
|
|