Abstract
Purpose: to identify the optimal combination of the seeding rate of seeds and the background of fertilizers to achieve a high yield of a new peas Premier variety, as well as to study the peculiarities of water consumption of the crop under the soil and climatic conditions of Azov zone Rostov region. Materials and methods. The studies were carried out in Aksai district Rostov region in 2019–2020. The soil of the experimental site is represented by ordinary calcareous medium-thick light loamy chernozem on loess-like loam. The experiments used the Premier pea variety. Factor A: seeding rates (0.8 (control); 1.0; 1.2 million pcs/ha); factor B: fertilizer backgrounds (high – N30Р80K80; medium – N15Р40K40; control without fertilizers) were studied. During the field experiment, the generally accepted methods were used (B. A. Dospekhov, 1985; A. N. Kostyakov, 1961; A. F. Vadyunina, 1986). Results. When growing peas in rainfed conditions, the priority effect on grain yield is provided by the moisture supply of plants during the critical period of water consumption. In years with optimal (GTC = 1.37) and stressful (GTC = 0.22) conditions of this growing season, the difference in yield indicators reached 47.0–51.9 %. The change in the seeding density from 0.8 to 1.0 and 1.2 million pcs/ha contributed to an increase in the average grain yield under different nutritional backgrounds, respectively, by 21.3–25.0 and 34.0–40.5 % compared to control. The fertilizer rate N15Р40K40 increased the peas yield at different sowing densities by 16.0–21.2 %, and a high background (N30Р80K80) – by 38.6–42.2 % compared to natural fertility conditions. The best payback of fertilizers by an increase in yield was obtained in the variant with a high background of nutrition N30P80K80 and a seeding rate of 1.2 million units/ha – 3.32 kg/kg. Conclusions. The best average grain yield was ensured at the rates of fertilization N30P80K80 and seeding of seeds of 1.2 million units/ha, reaching 2.26 t/ha.
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Claims 8
Claim · model-written summary
Moisture supply during the critical water-consumption period had the priority effect on pea grain yield under rainfed conditions.
- Taxon
- peas
Lathyrus oleraceust0 - Material
- Premiert0
- Treatment
- moisture supply of plants during the critical period of water consumptione0
- Outcome
- grain yielde0
- Setting
- rainfed conditionse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peas Premier variety under rainfed conditions”
e1“When growing peas in rainfed conditions”
e0“the priority effect on grain yield is provided by the moisture supply of plants during the critical period of water consumption”
Claim · model-written summary
The difference in yield indicators between stressful and optimal growing-season conditions reached 47.0–51.9%.
- Taxon
- peasLathyrus oleraceust0
- Material
- Premiert0
- Treatment
- stressful (GTC = 0.22) conditionse2
- Outcome
- yield indicatorse2
- Value
- 47.0–51.9 %e2
- Comparator
- optimal (GTC = 1.37)e2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peas Premier variety under rainfed conditions”
e2“In years with optimal (GTC = 1.37) and stressful (GTC = 0.22) conditions of this growing season, the difference in yield indicators reached 47.0–51.9 %”
Claim · model-written summary
Raising the seeding density from 0.8 to 1.0 million seeds per hectare increased average grain yield by 21.3–25.0% over control.
- Taxon
- peasLathyrus oleraceust0
- Material
- Premiert0
- Treatment
- change in the seeding density from 0.8 to 1.0e3
- Outcome
- average grain yielde3
- Direction
- increasee3
- Value
- 21.3–25.0e3
- Qualifier
- under different nutritional backgroundse3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peas Premier variety under rainfed conditions”
e3“The change in the seeding density from 0.8 to 1.0 and 1.2 million pcs/ha contributed to an increase in the average grain yield under different nutritional backgrounds, respectively, by 21.3–25.0 and 34.0–40.5 % compared to control”
Claim · model-written summary
Raising the seeding density to 1.2 million seeds per hectare increased average grain yield by 34.0–40.5% over control.
- Taxon
- peasLathyrus oleraceust0
- Material
- Premiert0
- Treatment
- change in the seeding density from 0.8 to 1.0 and 1.2 million pcs/hae3
- Outcome
- average grain yielde3
- Direction
- increasee3
- Value
- 34.0–40.5 %e3
- Qualifier
- under different nutritional backgroundse3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peas Premier variety under rainfed conditions”
e3“The change in the seeding density from 0.8 to 1.0 and 1.2 million pcs/ha contributed to an increase in the average grain yield under different nutritional backgrounds, respectively, by 21.3–25.0 and 34.0–40.5 % compared to control”
Claim · model-written summary
The N15Р40K40 fertilizer rate increased pea yield at different sowing densities by 16.0–21.2% over natural fertility.
- Taxon
- peasLathyrus oleraceust0
- Material
- Premiert0
- Treatment
- fertilizer rate N15Р40K40e4
- Outcome
- peas yielde4
- Direction
- increasede4
- Value
- 16.0–21.2 %e4
- Qualifier
- at different sowing densitiese4
- Comparator
- natural fertility conditionse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peas Premier variety under rainfed conditions”
e4“The fertilizer rate N15Р40K40 increased the peas yield at different sowing densities by 16.0–21.2 %, and a high background (N30Р80K80) – by 38.6–42.2 % compared to natural fertility conditions”
Claim · model-written summary
The high fertilizer background N30Р80K80 increased pea yield by 38.6–42.2% over natural fertility.
- Taxon
- peasLathyrus oleraceust0
- Material
- Premiert0
- Treatment
- high background (N30Р80K80)e4
- Outcome
- peas yielde4
- Direction
- increasede4
- Value
- 38.6–42.2 %e4
- Comparator
- natural fertility conditionse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peas Premier variety under rainfed conditions”
e4“The fertilizer rate N15Р40K40 increased the peas yield at different sowing densities by 16.0–21.2 %, and a high background (N30Р80K80) – by 38.6–42.2 % compared to natural fertility conditions”
Claim · model-written summary
The N30P80K80 fertilizer background with 1.2 million seeds per hectare gave the best fertilizer payback, 3.32 kg/kg.
- Taxon
- peasLathyrus oleraceust0
- Treatment
- high background of nutrition N30P80K80 and a seeding rate of 1.2 million units/hae5
- Outcome
- payback of fertilizers by an increase in yielde5
- Direction
- beste5
- Value
- 3.32 kg/kge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peas Premier variety under rainfed conditions”
e5“The best payback of fertilizers by an increase in yield was obtained in the variant with a high background of nutrition N30P80K80 and a seeding rate of 1.2 million units/ha – 3.32 kg/kg”
Claim · model-written summary
The N30P80K80 fertilizer background with 1.2 million seeds per hectare gave the best average grain yield, 2.26 t/ha.
- Taxon
- peasLathyrus oleraceust0
- Material
- Premiert0
- Treatment
- rates of fertilization N30P80K80 and seeding of seeds of 1.2 million units/hae6
- Outcome
- average grain yielde6
- Direction
- beste6
- Value
- 2.26 t/hae6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peas Premier variety under rainfed conditions”
e6“The best average grain yield was ensured at the rates of fertilization N30P80K80 and seeding of seeds of 1.2 million units/ha, reaching 2.26 t/ha”
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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.