During the breeding of Red California worm or Tiger worm, biomass is produced, also known as Worm compost. The product thus received is solid, with porous structure and comparatively high humidity. It is rich in humin and fulvin acids, as well as macro- and micro elements in helate (easily assimilated by plants) form, salts and minerals. Worm compost is suitable for fertilizing soils on small areas, where its introduction is done manually and is accompanied by efforts to achieve correct dosage. BIOHUMAX® is created as liquid formulation (water extract) of Worm compost from Red California worm, to help farmers avoid the inconvenience and problems of the direct application of Worm compost.


The product conforms to testing certificates, issued for each manufactured batch by the authorized state service for control and testing of fertilizers.

Project Studio Company has conducted a series of tests of humates – analogous products of BIOHUMAX®, available on the world market, and the results show that many of them are insufficient to achieve a positive end result for farmers. In our opinion, some drawbacks that play a negative role for the accepting the humin-containing preparations by world agriculture, are the low content of humin acids (under 0,20% in the liquid preparations and less than 10 % in the dry substance); “raw” or untreated humin acids, found in sufficient concentrations in the products’ contents, but ineffective in terms of the nourishment of the plants; products with treated humin acids with energy-consuming technologies reaching the farmers at inaccessible and economically unviable prices; even products marketed as humates, which do not contain humin acids.

How it works?
The effects of the product BIOHUMAX® are different and manifold. The main reason for the overall favorable influence of the product is due to the high content of humin acids and humus. Humin acids are complex compounds, they do not dissolve in water, with the exception of a small part – fulvo-acids, but during the treating of their bases they are reduced to soluble salts – humates of potassium, sodium and ammonia. It is the soluble humates that are physiologically active, which was first proven by Prof. Lydia Hristeva from the Hersones University in Ukraine about 55 years ago. Over the years, this was confirmed by researchers Ziechmann W., S. Bernhard, Piccolo A., Conte P., Cozzolino A., Guetzloff T. F., etc.

The manifold effect of the humates can be explained with their simultaneous impact on all elements of the future crops – water, soil and plant. Penetrating into water, humates modify its structure in such a way that it becomes better organized and closer to the structure of ice crystals. As a result, water acquires certain characteristics of “meltwater”, improving the nourishment of plants. Penetrating into soil, humates restore its structure – they convert soluble forms of lead, mercury, cadmium and other harmful and radioactive elements, including poisonous industrial wastes and environmentally hazardous chemicals into insoluble ones. Also, humates form complex compounds with phosphorus and microelements, which are easily assimilated by plants, and this rapidly increases the effectiveness of mineral fertilizers. Penetrating the plant and affecting it on a cellular level, humates raise the germination rate of seeds, accelerate plant development, stimulate ferment synthesis, increase resistance to draught, frosts and radiation, increase cellular energy, facilitate the formation of chlorophyll, vitamin С, sugar, amino acids, and other important structural substances.

Humates regulate plant metabolism by preventing accumulation nitrates, selectively contribute for the penetration of potassium ions in cellular membranes. The results from the utilization of humates in Bulgaria are increased yields of all agricultural products. There is a confirmed increase of yields of wheat from 13 to 25%, barley by 5 to 17%, millet by 25 to 50%, corn by up to 30%, biomass by 6 to 20%, potatoes, carrots, beetroot, radishes by 25 to 40%, cotton by 10 to 30%, cucumbers by 34 to 38%, tomatoes by 20 to 30%, cabbage by 25 to 35%, apples by 8 to 20%, grapes by 25 to 30%, forage grasses by up to 100%. Floricultural companies report increased quantity of blooms for roses and carnations by 30 to 100%, accelerated blooming – with 10-15 days earlier than usual.
Humates accelerate water exchange, physiological and oxidation processes and improve nourishment, especially when nourishment conditions do not correspond to standards and there is industrial waste pollution.

Growing various agricultural crops – wheat, corn, potatoes, cucumbers, lettuce, etc. – necessitate the use of large quantities of nitrogen fertilizers. The use of humates reduces by an average of 50% the necessity for nitrogen additives. In the USA it has been proven that the utilization of humates completely prevents chlorosis and helps treat plants from it.

One of the main problems of agriculture is the effective assimilation of mineral fertilizers. The problem is that the highly soluble potassium and nitrogen are easily washed away from the soil, and phosphate fertilizers, on the contrary, bind with the ions of potassium, magnesium, aluminum, and iron, forming inert insoluble compounds. The presence of humates significantly increases the effectiveness of assimilation of mineral fertilizers. The assimilation of nitrogen and potassium fertilizers is increased many times due to the easier (unimpeded) penetration of active substances through cellular membranes. The combination of mineral fertilizers with humates guarantees their complete assimilation.

Humates play an important role for the transporting of microelements. Thousands of years ago they accumulated the important microelements in nature in forms accessible to plants. The treatment of plants with humates guarantees the constant supply of plants with microelements.

Soil fertility has always been linked to its humus content. Humin substances participate in regulating practically all soil properties.

They are more effective in the early stages of development of plants and animals.

Physical and Chemical Properties

BIOHUMAX® is a liquid organic fertilizer based on a Red California worm (Lumbrocum Rubellis) and Tiger worm (Perionus Escavatus) product. It is a dark brown liquid with acidity of about 9 pH. The product contains resospheric microorganisms. Each batch manufactured has a separate number and chemical content certificate, issued by the authorized laboratory to the Ministry of agriculture and forests of Bulgaria. The product does not contain synthetic additives and genetically modified organisms. It is characterized by high content of humin acids, mostly in the form of potassium humates. It contains also fulvo-acids, phytohormones, indispensable amino acids – asparagine, glutamine, valine, methionine, lysine, etc., microelements in helate form.

Iron (Fe) >0,0010 %;
Manganese (Mn) >0,0010 %;
Boron (B) >0,0001 %;
Molybdenum (Мо) 0,0001 %.
Zinc (Zn) 0,0012 %;
Copper (Cu) 0,0005 %.
Humus contents are between 0,35 and 0,55 %, the macroelement content in mg/dm3 for the general and helate forms is as follows:

Nitrogen > 500 , mostly in the form of Nitrate nitrogen;
Phosphorus > 100;
Potassium > 3500;
Calcium > 220;
Magnesium > 200.
The product is in liquid form, dark brown in color, without a specific odor, acidity is between 9 and 10 pH. It contains humin and fulvo-acids, as well as macro- and micro elements in helate form. It does not change its properties when stored at temperatures between 5° and 25°С. Optimal shelf life is 36 months from the date of manufacture.

BIOHUMAX® contains over 50 types of bacteria and not less than 9 types of moulds. They can be subdivided depending on the temperature range into psychrophiles (t<20°С), mesophiles (t=20°-40°С) and thermophiles (t>40°С). The predominant microorganisms in the end product are mesophiles.


Although bacterial content in the compost is very high (108 -109 cells per 1 g moist compost), due to their small size they comprise less than 50 % of the total microbe biomass. Some species (genus Bacillus, Clostridium) form endospores, resistant to high temperatures and draught. Actinomycetes grow significantly slower than bacteria and moulds and during the early stages of composting they are no competition. They appear at the later stages of the process, when they become too many and form at a depth of 10 cm below the surface a clearly visible layer of actinomycetes, white or grey in color. They can reach up to 105-108 cells per 1 g of moist compost, which is less than the bacteria. Moulds play an important role in cellulose decomposition and the condition of the composting mass should be regulated in such a way as to optimize their activity. Temperature is an important factor, because moulds die at t<55°С. Moulds contain both thermophiles (growing at t=50°С), and mesophiles (growing at t=28°С). After temperature is reduced, they again proliferate in the cooler areas throughout the entire mass.