Abstract
In order to grow crops that reduce the negative impact on the environment, as well as meet the nutritional needs of the increasing human population, it is necessary to include new and more sustainable production strategies into current agricultural systems. The aim of our study was to evaluate the optimal nutritional conditions of semi-leafless pea productivity and ascertain the influence of meteorological factors on the productivity of these plants under boreal environmental conditions. The test involved three semi-leafless pea varieties, one of which was a new variety, and eight N fertilization treatments were used: (1) without fertilizers (N0), (2) without N fertilizers (N0), (3) N15, (4) N30, (5) N45, (6) N15+15, (7) N60, and (8) N60. Plots of the second–seventh treatment received a base application of P40K80; the eighth treatment received P80K160. Fertilizer efficiency depended on the meteorological conditions. Based on their productivity, the pea varieties were arranged in the following descending order: Ieva DS ˃ Respect ˃ Simona. Compared with unfertilized peas, NPK fertilizers enhanced the seed yield by 10.6–12.9% on average. Splitting the N30 rate and applying N60, under a background of P40K80, was not efficient. The optimal rate of N15–45P40K80 fertilizers for peas was determined. Meteorological factors significantly influenced seed yield by 75.2%, 44.1%, and 79.9% for varieties Ieva DS, Simona, and Respect, respectively.
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Claims 9
Claim · model-written summary
Fertilizer efficiency depended on meteorological conditions.
- Taxon
- Pea
Lathyrus oleraceust0 - Outcome
- Fertilizer efficiencye0
- Setting
- meteorological conditionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer efficiency depended on the meteorological conditions.”
t0“Pea”
Claim · model-written summary
Pea productivity ranked Ieva DS above Respect above Simona.
- Taxon
- PeaLathyrus oleraceust0
- Material
- Ieva DS ˃ Respect ˃ Simonae0
- Outcome
- productivitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on their productivity, the pea varieties were arranged in the following descending order: Ieva DS ˃ Respect ˃ Simona.”
t0“Pea”
Claim · model-written summary
NPK fertilizer increased pea seed yield by 10.6–12.9% on average relative to unfertilized peas.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- NPK fertilizerse0
- Outcome
- seed yielde0
- Direction
- enhancede0
- Value
- 10.6–12.9%e0
- Comparator
- unfertilized pease0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with unfertilized peas, NPK fertilizers enhanced the seed yield by 10.6–12.9% on average.”
Claim · model-written summary
Splitting N30 under P40K80 was inefficient.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- Splitting the N30 ratee0
- Outcome
- not efficiente0
- Qualifier
- under a background of P40K80e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Splitting the N30 rate and applying N60, under a background of P40K80, was not efficient.”
t0“Pea”
Claim · model-written summary
Applying N60 under P40K80 was inefficient.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- applying N60e0
- Outcome
- not efficiente0
- Qualifier
- under a background of P40K80e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Splitting the N30 rate and applying N60, under a background of P40K80, was not efficient.”
t0“Pea”
Claim · model-written summary
The authors determined N15–45P40K80 as the optimal pea fertilizer rate.
- Taxon
- peasLathyrus oleraceuse0
- Outcome
- optimal rate of N15–45P40K80 fertilizerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimal rate of N15–45P40K80 fertilizers for peas was determined.”
Claim · model-written summary
Meteorological factors significantly influenced Ieva DS seed yield by 75.2%.
- Taxon
- PeaLathyrus oleraceust0
- Material
- Ieva DSe0
- Outcome
- seed yielde0
- Value
- 75.2%e0
- Setting
- Meteorological factorse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Meteorological factors significantly influenced seed yield by 75.2%, 44.1%, and 79.9% for varieties Ieva DS, Simona, and Respect, respectively.”
t0“Pea”
Claim · model-written summary
Meteorological factors significantly influenced Simona seed yield by 44.1%.
- Taxon
- PeaLathyrus oleraceust0
- Material
- Simonae0
- Outcome
- seed yielde0
- Value
- 44.1%e0
- Setting
- Meteorological factorse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Meteorological factors significantly influenced seed yield by 75.2%, 44.1%, and 79.9% for varieties Ieva DS, Simona, and Respect, respectively.”
t0“Pea”
Claim · model-written summary
Meteorological factors significantly influenced Respect seed yield by 79.9%.
- Taxon
- PeaLathyrus oleraceust0
- Material
- Respecte0
- Outcome
- seed yielde0
- Value
- 79.9%e0
- Setting
- Meteorological factorse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Meteorological factors significantly influenced seed yield by 75.2%, 44.1%, and 79.9% for varieties Ieva DS, Simona, and Respect, respectively.”
t0“Pea”
The same questions in other papers
fertilization · yield · Lathyrus oleraceus (pea)Positive and negative results
215 papers in the same direction as this paper · 23 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- positive
236 papers more in this group
See all 240 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.