This article allows gardeners to catch the intricacies of fertilizers’s using and to comprehend the basics of agricultural chemistry.
Macronutrients are of particular importance for the growth and development of plants at all stages of the life cycle. When asked what macroelements of plant nutrition you know, almost everyone will name nitrogen, phosphorus and potassium. And only a few will remember sulfur. But sulfur is the same macronutrient, and its role in the life of a plant is difficult to overestimate. It is impossible to replace sulfur with other elements. According to the agrochemical service in Russia, 75% of the land is characterized by a shortage of sulfur available to plants.
Sulfur is actively involved in nitrogen and carbohydrate metabolism, in the processes of respiration and the synthesis of fats. It stimulates the formation of nodule bacteria on the roots of legumes and increases the effectiveness of the use of NPK fertilizers (complex nitrogen-phosphorus-potassium fertilizers).



Sulfur is an indispensable component of proteins (amino acids methionine, cysteine), vitamin B1, lipoic acid, and chlorophyll, therefore its deficiency causes disturbances in protein synthesis, a decrease in the intensity of photosynthesis and the accumulation of nitrites and nitrates.
Sulfur is involved in the formation of many enzymes and essential oils.
One of the conditions for obtaining high-quality crops is a sufficient supply of sulfur nutrition to plants.
Sulfur provides a high level of accumulation of sugars and starch in products, improves the taste of vegetables, fruits and berries.
We also include the work results of catering establishments, children's institutions, hospitals and sanatoriums, and all other places where there is a crowd of people - from stations to shops, from baths to gyms.



Cruciferous plants, such as cabbage, are highly demanding in terms of sulfur content, beets and all legumes are medium-demanding, and potatoes are low-demanding.
Sulfur enters plants both from soil reserves and from the atmosphere. Sulfur is absorbed by plants in the form of sulfates.
The main symptoms of sulfur starvation on young growing leaves of plants or growth points are yellowing, small leaves, and delayed maturation.This is due to the fact that sulfur is inactive in plants and cannot migrate, for example, from the lower leaves to the upper ones.
Its maximum amount is concentrated in the seeds and leaf tissues, and the minimum - in the stems and roots.
That is why it is best to eliminate the consequences of sulfur deficiency in the shortest possible time - 4-5 days - by foliar feeding of plants.



For this purpose, sulfur-containing fertilizers with high water solubility are used. The combination of humic acids with available sulfur is very effective, especially against the background of available nitrogen and potassium. Experienced vegetable growers are well acquainted with such fertilizers.
Potassium humate "Bioresource" "A rich harvest" contains sulfur in combination with nitrogen and potassium.
Please note that the ratio of nitrogen and sulfur in the fertilizer should be 10:1, this gives the maximum result.
Nitrogen without sulfur - money down the drain!