Abstract
The effectiveness of fractional application of nitrogen fertilizers in cultivation of spring common wheat was studied in the conditions of the Omsk Irtysh region on meadow-chernozem medium-sized medium-humus heavy loamy soil. The research object was spring common wheat (Triticum aestivum L.) cv. Melodiya. The purpose of the research was to establish the effectiveness of fractional application of nitrogen fertilizers depending on the level of labile phosphorus in meadow-chernozem soil on yield and grain quality of spring common wheat in the conditions of the Omsk Irtysh region. The field experiment had three factors (242): Factor A phosphorus background: 1. No fertilizers; 2. Application of P30 a. i./ha; factor B main application of ammonium nitrate in increasing doses: 0, N30, N45, N60; factor C foliar feeding with ammonium nitrate and carbamide at a dose of N30: 1. Once in heading stage; 2. Twice in heading stage and milky ripeness. It was found that the most effective was main application of nitrogen-p hosphorus fertilizers in doses of N3045P30; crop productivity in these variants increases by 4048 % in comparison with the nonfertilized variants due to the gain in 1000-seed weight (r = 0.400.42), productive stooling (r = 0.83). The agronomic profitableness of one kg of a. i./ha applied fertilizers in these variants was 21.5 and 19.9 kg of grain with 7.5 and 6.1 kg increase in protein content, respectively. Late foliar sprayings, regardless of their number, did not increase crop productivity and quality of wheat grain. Thus, fractional application of nitrogen fertilizers in years with insufficient moisture levels (hydrothermal index 0.60.7) is not effective.
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Claims 8
Claim · model-written summary
Main nitrogen–phosphorus fertilization increased spring wheat productivity by 4048 % versus no fertilization.
- Taxon
- spring common wheat
Triticum aestivume0 - Material
- Melodiyae0
- Treatment
- main application of nitrogen-p hosphorus fertilizers in doses of N3045P30e1
- Outcome
- crop productivitye1
- Direction
- increasese1
- Value
- 4048 %e1
- Comparator
- nonfertilized variantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring common wheat (Triticum aestivum L.) cv. Melodiya”
e1“main application of nitrogen-p hosphorus fertilizers in doses of N3045P30; crop productivity in these variants increases by 4048 % in comparison with the nonfertilized variants”
Claim · model-written summary
The gain in 1000-seed weight was associated with wheat productivity in fertilized variants (r = 0.400.42).
- Taxon
- spring common wheatTriticum aestivume0
- Organ / stage
- seede1
- Outcome
- crop productivitye1
- Qualifier
- r = 0.400.42e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring common wheat (Triticum aestivum L.) cv. Melodiya”
e1“crop productivity in these variants increases by 4048 % in comparison with the nonfertilized variants due to the gain in 1000-seed weight (r = 0.400.42)”
Claim · model-written summary
Productive stooling was associated with wheat productivity in fertilized variants (r = 0.83).
- Taxon
- spring common wheatTriticum aestivume0
- Treatment
- main application of nitrogen-p hosphorus fertilizers in doses of N3045P30e2
- Outcome
- crop productivitye1
- Qualifier
- productive stooling (r = 0.83)e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring common wheat (Triticum aestivum L.) cv. Melodiya”
e1“crop productivity in these variants increases by 4048 % in comparison with the nonfertilized variants due to the gain in 1000-seed weight (r = 0.400.42), productive stooling (r = 0.83)”
e2“main application of nitrogen-p hosphorus fertilizers in doses of N3045P30”
Claim · model-written summary
The agronomic return from the fertilized variants was 21.5 and 19.9 kg of grain per kg of applied fertilizer active ingredient.
- Taxon
- spring common wheatTriticum aestivume0
- Outcome
- agronomic profitablenesse1
- Value
- 21.5 and 19.9 kg of graine1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring common wheat (Triticum aestivum L.) cv. Melodiya”
e1“The agronomic profitableness of one kg of a. i./ha applied fertilizers in these variants was 21.5 and 19.9 kg of grain”
Claim · model-written summary
The fertilized variants increased wheat grain protein content by 7.5 and 6.1 kg, respectively.
- Taxon
- spring common wheatTriticum aestivume0
- Treatment
- main application of nitrogen-p hosphorus fertilizers in doses of N3045P30e2
- Outcome
- protein contente1
- Direction
- increasee1
- Value
- 7.5 and 6.1 kge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring common wheat (Triticum aestivum L.) cv. Melodiya”
e1“The agronomic profitableness of one kg of a. i./ha applied fertilizers in these variants was 21.5 and 19.9 kg of grain with 7.5 and 6.1 kg increase in protein content, respectively.”
e2“main application of nitrogen-p hosphorus fertilizers in doses of N3045P30”
Claim · model-written summary
Late foliar sprays did not increase wheat crop productivity.
- Taxon
- spring common wheatTriticum aestivume0
- Treatment
- Late foliar sprayingse1
- Outcome
- crop productivitye1
- Direction
- did not increasee1
- Qualifier
- regardless of their numbere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring common wheat (Triticum aestivum L.) cv. Melodiya”
e1“Late foliar sprayings, regardless of their number, did not increase crop productivity and quality of wheat grain.”
Claim · model-written summary
Late foliar sprays did not increase wheat grain quality.
- Taxon
- spring common wheatTriticum aestivume0
- Treatment
- Late foliar sprayingse1
- Outcome
- quality of wheat graine1
- Direction
- did not increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring common wheat (Triticum aestivum L.) cv. Melodiya”
e1“Late foliar sprayings, regardless of their number, did not increase crop productivity and quality of wheat grain.”
Claim · model-written summary
The authors concluded that fractional nitrogen application was ineffective in years with insufficient moisture.
- Taxon
- spring common wheatTriticum aestivume0
- Outcome
- fractional application of nitrogen fertilizerse1
- Qualifier
- years with insufficient moisture levels (hydrothermal index 0.60.7)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring common wheat (Triticum aestivum L.) cv. Melodiya”
e1“fractional application of nitrogen fertilizers in years with insufficient moisture levels (hydrothermal index 0.60.7) is not effective”
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