Abstract
Amaranth is a valuable food and feed crop that can solve the problem of vegetable protein in animal husbandry. The aim of the research was to study elements of amaranth cultivation technology: the dose of nitrogen fertilizers (without fertilizers, N15, N20, N25) and the row spacing (15, 30, 45 cm). The work was carried out on sod-podzolic medium loamy gleyic soil on the experimental field of FSBEI HE Yaroslavl State Agricultural Academy in 2018. The studied parameters were determined according to generally ac-cepted methods. The use of nitrogen fertilizers contributed to a significant increase in leaf area and pho-tosynthetic potential of amaranth crops at the highest values of the background N20 – 4.7 thousand m2 / ha and 324.08 thousand m2 / ha × days, respectively. Increase in row spacing when sowing amaranth raised the leaf surface area value, accumulation of dry aboveground mass, photosynthetic potential, ger-mination and safety at maximum values in the variant with a row spacing of 45 cm. abundance of weed flea, cereal aphid and sunflower fire. Sowing amaranth with a width of 45 cm between rows caused a sta-tistically significant decrease in the number of studied pests, as well as the number and dry weight of young and perennial weeds. The use of nitrogen fertilizers in a dose of 25 kg AI / ha contributed to a sig-nificant decrease in the yield of amaranth green mass from 145.12 q / ha on the «no-fertilizer» variant to 127.93 q / ha, with maximum values for the background N20 – 156, 55 kg / ha. Thus, the greatest effi- 128 ciency was shown by the introduction of nitrogen fertilizers at a dose of 20 kg ai / ha when sown with a row spacing of 45 cm.
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Claims 8
Claim · model-written summary
Nitrogen fertilizer use significantly increased amaranth leaf area, reaching 4.7 thousand m2 / ha at the highest background N20 dose.
- Taxon
- amaranth
.JPG?width=60)
Amaranthus caudatuse0 - Treatment
- use of nitrogen fertilizerse0
- Outcome
- leaf areae0
- Direction
- increasee0
- Value
- 4.7 thousand m2 / hae0
- Qualifier
- at the highest values of the background N20e0
- Comparator
- without fertilizerse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“The use of nitrogen fertilizers contributed to a significant increase in leaf area and pho-tosynthetic potential of amaranth crops at the highest values of the background N20 – 4.7 thousand m2 / ha and 324.08 thousand m2 / ha × days, respectively”
e5“the dose of nitrogen fertilizers (without fertilizers, N15, N20, N25)”
Claim · model-written summary
Nitrogen fertilizer use significantly increased amaranth photosynthetic potential, reaching 324.08 thousand m2 / ha × days at the highest background N20 dose.
- Taxon
- amaranthAmaranthus caudatuse0
- Treatment
- use of nitrogen fertilizerse0
- Outcome
- pho-tosynthetic potentiale0
- Direction
- increasee0
- Value
- 324.08 thousand m2 / ha × dayse0
- Qualifier
- at the highest values of the background N20e0
- Comparator
- without fertilizerse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of nitrogen fertilizers contributed to a significant increase in leaf area and pho-tosynthetic potential of amaranth crops at the highest values of the background N20 – 4.7 thousand m2 / ha and 324.08 thousand m2 / ha × days, respectively”
e5“the dose of nitrogen fertilizers (without fertilizers, N15, N20, N25)”
Claim · model-written summary
Row spacing of 45 cm raised amaranth leaf surface area, dry aboveground mass and photosynthetic potential, at their maximum values in that variant.
- Taxon
- amaranthAmaranthus caudatuse3
- Treatment
- row spacing of 45 cme3
- Outcome
- leaf surface area value, accumulation of dry aboveground mass, photosynthetic potentiale3
- Direction
- raisede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Increase in row spacing when sowing amaranth raised the leaf surface area value, accumulation of dry aboveground mass, photosynthetic potential, ger-mination and safety at maximum values in the variant with a row spacing of 45 cm”
Claim · model-written summary
Row spacing of 45 cm raised amaranth germination and safety, at their maximum values in that variant.
- Taxon
- amaranthAmaranthus caudatuse3
- Treatment
- row spacing of 45 cme3
- Outcome
- ger-mination and safetye3
- Direction
- raisede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Increase in row spacing when sowing amaranth raised the leaf surface area value, accumulation of dry aboveground mass, photosynthetic potential, ger-mination and safety at maximum values in the variant with a row spacing of 45 cm”
Claim · model-written summary
Nitrogen fertilizer at 25 kg AI / ha significantly decreased amaranth green mass yield to 127.93 q / ha from 145.12 q / ha without fertilizer.
- Taxon
- amaranthAmaranthus caudatuse4
- Treatment
- nitrogen fertilizers in a dose of 25 kg AI / hae4
- Outcome
- yield of amaranth green masse4
- Direction
- decreasee4
- Value
- 127.93 q / hae4
- Qualifier
- from 145.12 q / hae4
- Comparator
- «no-fertilizer» variante4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The use of nitrogen fertilizers in a dose of 25 kg AI / ha contributed to a sig-nificant decrease in the yield of amaranth green mass from 145.12 q / ha on the «no-fertilizer» variant to 127.93 q / ha”
Claim · model-written summary
Sowing amaranth at 45 cm row width significantly decreased the number of studied pests, including weed flea, cereal aphid and sunflower fire.
- Taxon
- amaranthAmaranthus caudatuse1
- Treatment
- Sowing amaranth with a width of 45 cm between rowse1
- Interactor
- weed flea, cereal aphid and sunflower firee2pest
- Outcome
- number of studied pestse1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Sowing amaranth with a width of 45 cm between rows caused a sta-tistically significant decrease in the number of studied pests, as well as the number and dry weight of young and perennial weeds”
e2“abundance of weed flea, cereal aphid and sunflower fire”
Claim · model-written summary
Sowing amaranth at 45 cm row width significantly decreased the number and dry weight of young and perennial weeds.
- Taxon
- amaranthAmaranthus caudatuse1
- Treatment
- Sowing amaranth with a width of 45 cm between rowse1
- Interactor
- young and perennial weedse1weed
- Outcome
- number and dry weight of young and perennial weedse1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Sowing amaranth with a width of 45 cm between rows caused a sta-tistically significant decrease in the number of studied pests, as well as the number and dry weight of young and perennial weeds”
Claim · model-written summary
The combination of 20 kg ai / ha nitrogen fertilizer with 45 cm row spacing gave the greatest efficiency.
- Taxon
- amaranthAmaranthus caudatust0
- Treatment
- introduction of nitrogen fertilizers at a dose of 20 kg ai / ha when sown with a row spacing of 45 cme7
- Outcome
- greatest effi- 128 ciencye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“the greatest effi- 128 ciency was shown by the introduction of nitrogen fertilizers at a dose of 20 kg ai / ha when sown with a row spacing of 45 cm”
t0“AMARANTH PRODUCTIVITY”
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