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Nitrogen (N) increases yield and is digested in the form of ammonia or nitric acid

Nitrogen (N) is one of the most important macroelements for the plant, which increases the yield and is absorbed in the form of ammonia or nitric acid (only legumes have the ability to assimilate atmospheric nitrogen by nodule nitrogen fixing bacteria), so there is a need for nitrogen supplementation constantly. Nitrogen is actively involved in the process of protein biosynthesis (protein formation), affects the growth and development of agricultural plants (activates the growth of vegetative organs - stems, leaves), increases the protein content in the reproductive organs (fruits, seeds), the bulk is in the enzymes, proteins , nucleic acids (DNA, RNA), as well as chlorophyll, vitamins, alkaloids, increases the level of assimilation from the soil, such elements as potassium, phosphorus, calcium, manganese, magnesium, molybdenum, copper.

Nitrogen is most needed by young plants, in particular, different varieties of cabbage (white, late, red, Brussels), asparagus, leek, pumpkin, celery, rhubarb. Agricultural plants with a crop consume from soil a significant part of nitrogen (cereals - 100-150 kg / ha, vegetable plants - 150-50 kg / ha).

Nitrogen deficiency: with insufficient amount of nitrogen in the soil, growth slows down (leaves grow smaller), the vegetative period decreases, a weak flowering of the plant (small number of fruit buds), loses intense green color to a pale green color (chlorophyll formation is disrupted, chlorosis occurs); yellowing and early fall of leaves, in cereals - weak tillering, vegetable crops - old leaves are yellow-green in fruit-berry - the leaves have a red color, a significant part of the fruit with melt with small dense th pulp, crumbled after the ovary, which leads to a decrease in yield.

Excess nitrogen nutrition: leads to accumulate in vegetable cultures of nitrates. When nitrogen is exceeded, useful substances from the generative organs of the plant go to vegetative ones, which leads to excessive formation of green mass, while the ripening processes are slowed down, the quality of grown crops deteriorates (in cereals leads to lodging of crops in vegetables - poor development of the root system, tubers , fruits, melons and vegetables - accumulation of nitrates, in young fruit trees - to reduce frost resistance). Nitrogen fertilizers are the most dangerous when the norms are exceeded.

Interaction of nitrogen with other elements

Antagonists (An excess of one contributes to the deficit of another element) Sinengists (Improve mutuality of each other) Blocks the interaction of each other (not recommended to combine together)
- P (phosphorus), K (potassium), Ca (calcium), Mg (magnesium), Mo (molybdenum) -
  • Nitrogen (N) increases yield and is digested in the form of ammonia or nitric acid

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