Abstract
The article considers the effect of various doses of nitrogen fertilizers on the formation and activity of the symbiotic apparatus of peas. It is revealed that application of fertilizers P60K40 normalized to growth of a harvest of dry biomass of plants of peas of a grade Phoenix on 0.52 t/hectare, and additional introduction of N30 nitrogen - on 0.66 t/hectare. The maximum yield of dry matter (9.22 tons/ha) was noted when using full mineral fertilizer - N60P60K40. Studies have found that the content of nutrients in the soil available to plants before laying the experience was quite low. By the phase of branching on the backgrounds using fertilizers, a noticeable increase in the content of mobile nitrogen was observed, especially on versions with N60P60K40, then it decreased (2.12-4.78 mg/kg of soil) and again increased only at the time of harvesting (9.03-12.14 mg/kg of soil). This is due to the fact that at the beginning of vegetation, the need of pea plants for nitrogen is minimal, then, as it grows and develops, nitrogen is absorbed in large sizes. It was revealed that the dynamics of ammonium were characterized by a high content of it to the butonization phase, and then a decrease by the beginning of grain filling. By the end of the growing season, the ammonium content increased again. The amount of phosphorus and potassium increases and reaches a maximum by the beginning of seed filling, then before harvesting there is a tendency to decrease their content, due to a significant increase in the consumption of these elements by plants.
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Claims 11
Claim · model-written summary
P60K40 fertilizer increased pea dry biomass by 0.52 t/ha.
- Taxon
- PEAS
Lathyrus oleraceust0 - Treatment
- fertilizers P60K40e1
- Outcome
- dry biomasse1
- Direction
- growthe1
- Value
- 0.52 t/hectaree1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“PEAS”
e1“application of fertilizers P60K40 normalized to growth of a harvest of dry biomass of plants of peas of a grade Phoenix on 0.52 t/hectare”
Claim · model-written summary
Additional N30 nitrogen increased pea dry biomass by 0.66 t/ha.
- Taxon
- PEAS
Lathyrus oleraceust0 - Treatment
- additional introduction of N30 nitrogene1
- Outcome
- dry biomasse1
- Direction
- growthe1
- Value
- 0.66 t/hectaree1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“PEAS”
e1“application of fertilizers P60K40 normalized to growth of a harvest of dry biomass of plants of peas of a grade Phoenix on 0.52 t/hectare, and additional introduction of N30 nitrogen - on 0.66 t/hectare”
Claim · model-written summary
The maximum dry matter yield of pea, 9.22 t/ha, was obtained with full mineral fertilizer N60P60K40.
- Taxon
- PEAS
Lathyrus oleraceust0 - Treatment
- full mineral fertilizer - N60P60K40e1
- Outcome
- maximum yield of dry mattere1
- Direction
- maximume1
- Value
- 9.22 tons/hae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“PEAS”
e1“The maximum yield of dry matter (9.22 tons/ha) was noted when using full mineral fertilizer - N60P60K40”
Claim · model-written summary
Available nutrient content in the soil before the experiment was quite low.
- Taxon
- PEAS
Lathyrus oleraceust0 - Outcome
- content of nutrients in the soil available to plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“PEAS”
e1“the content of nutrients in the soil available to plants before laying the experience was quite low”
Claim · model-written summary
By the branching phase, fertilizers produced a noticeable increase in mobile soil nitrogen, especially with N60P60K40.
- Taxon
- PEAS
Lathyrus oleraceust0 - Treatment
- fertilizerse1
- Outcome
- content of mobile nitrogene1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“PEAS”
e1“By the phase of branching on the backgrounds using fertilizers, a noticeable increase in the content of mobile nitrogen was observed, especially on versions with N60P60K40”
Claim · model-written summary
After branching, mobile nitrogen decreased to 2.12-4.78 mg/kg of soil.
- Taxon
- PEAS
Lathyrus oleraceust0 - Outcome
- content of mobile nitrogene1
- Direction
- decreasede2
- Value
- 2.12-4.78 mg/kg of soile2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“PEAS”
e1“content of mobile nitrogen”
e2“then it decreased (2.12-4.78 mg/kg of soil)”
Claim · model-written summary
Mobile nitrogen increased again at harvest to 9.03-12.14 mg/kg of soil.
- Taxon
- PEAS
Lathyrus oleraceust0 - Outcome
- content of mobile nitrogene1
- Direction
- increasede2
- Value
- 9.03-12.14 mg/kg of soile2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“PEAS”
e1“content of mobile nitrogen”
e2“again increased only at the time of harvesting (9.03-12.14 mg/kg of soil)”
Claim · model-written summary
The authors attribute the pattern to minimal pea nitrogen need at the start of vegetation and large nitrogen absorption as the plants grow and develop.
- Taxon
- pea plants
Lathyrus oleraceuse1 - Outcome
- nitrogen is absorbed in large sizese1
- Qualifier
- at the beginning of vegetation, the need of pea plants for nitrogen is minimale1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“at the beginning of vegetation, the need of pea plants for nitrogen is minimal, then, as it grows and develops, nitrogen is absorbed in large sizes”
Claim · model-written summary
Soil ammonium was high until the butonization phase and then decreased by the beginning of grain filling.
- Taxon
- PEAS
Lathyrus oleraceust0 - Outcome
- dynamics of ammoniume1
- Direction
- decreasee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“PEAS”
e1“the dynamics of ammonium were characterized by a high content of it to the butonization phase, and then a decrease by the beginning of grain filling”
Claim · model-written summary
Ammonium content increased again by the end of the growing season.
- Taxon
- PEAS
Lathyrus oleraceust0 - Outcome
- ammonium contente1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“PEAS”
e1“By the end of the growing season, the ammonium content increased again”
Claim · model-written summary
Phosphorus and potassium amounts increased to a maximum by the beginning of seed filling, then tended to decrease before harvest.
- Taxon
- PEAS
Lathyrus oleraceust0 - Outcome
- amount of phosphorus and potassiume1
- Direction
- increasese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“PEAS”
e1“The amount of phosphorus and potassium increases and reaches a maximum by the beginning of seed filling, then before harvesting there is a tendency to decrease their content”
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