Abstract
The purpose of the scientific work was to assess the economic efficiency of cultivating red clover and mixed soybean and corn crops for green mass, depending on the use of increasing doses of nitrogen fertilizers. The research was carried out in the fields of the Adyghe Research Institute of Agriculture, the soil of which is represented by heavy in mechanical composition merged chernozem. The content of physical clay throughout the profile is quite high – up to 78%. Tillage was applied with a plow PN-4-35 to a depth of 25–27 cm. It was revealed that the average yield of mixed crops of corn and soybeans for three years of research on the entire experimental site was 35,14 t/ha, perennial legumes for two years of research 18,67 t/ha. The yield of the green mass of soy and corn forage mixture, red clover is higher in all indicators on the variant with the introduction of the highest dose of nitrogen. The yield increases obtained depending on the use of increasing doses of nitrogen have been statistically proven (corn-soy mixture NSR05 ~ +3,5 t/ha), (clover NSR05 ~ +1,25 t/ha). Analysis of calculations of economic efficiency of cultivation of mixed crops of corn and soybeans showed that in all variants the level of profitability of products amounted to 91,1–117,7%. The income from the sale of products varied in the range of 14 469,6–21 169,7 thousand rubles/ha. The minimum income from the sale of the green mass of corn-soy mixture in the control variant is 14 469,6 thousand rubles/ha, the maximum in the variant with the highest dose of top dressing is 21 169,7 thousand rubles/ha. With a yield of red clover of 20,1 t/ha, the conditional net income from 1 hectare amounted to 3 963,0 rubles, the profitability level is 24,6%. Thus, the cultivation of corn-soy mixture and red clover by all economic indicators is possible without loss for an agricultural enterprise and it is advisable to include a raw material conveyor in the system.
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Claims 13
Claim · model-written summary
Average green-mass yield of the corn-soybean mixture over three years was 35,14 t/ha.
- Taxon
- corn and soybeans
Glycine maxZea mays subsp. mayse0
- Outcome
- average yielde0
- Value
- 35,14 t/hae0
- Qualifier
- for three years of researche0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“average yield of mixed crops of corn and soybeans for three years of research on the entire experimental site was 35,14 t/ha”
Claim · model-written summary
Average yield of perennial legumes over two years was 18,67 t/ha.
Verbatim
e0“perennial legumes for two years of research 18,67 t/ha”
e1“average yield of mixed crops of corn and soybeans for three years of research on the entire experimental site was 35,14 t/ha, perennial legumes for two years of research 18,67 t/ha”
Claim · model-written summary
The highest nitrogen dose produced the highest corn-soybean forage-mixture green-mass yield.
- Taxon
- soy and corne0
- Treatment
- highest dose of nitrogene0
- Outcome
- yield of the green masse0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“The yield of the green mass of soy and corn forage mixture, red clover is higher in all indicators on the variant with the introduction of the highest dose of nitrogen.”
Claim · model-written summary
The highest nitrogen dose produced the highest red clover green-mass yield.
- Taxon
- red clover
Trifolium pratensee0 - Treatment
- highest dose of nitrogene0
- Outcome
- yield of the green masse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The yield of the green mass of soy and corn forage mixture, red clover is higher in all indicators on the variant with the introduction of the highest dose of nitrogen.”
Claim · model-written summary
Increasing nitrogen doses significantly increased corn-soy mixture yield, with NSR05 about +3,5 t/ha.
- Taxon
- corn-soy mixturee0
- Treatment
- increasing doses of nitrogene0
- Outcome
- yielde0
- Direction
- increasese0
- Value
- +3,5 t/hae0
Not reportedComparator
Verbatim
e0“The yield increases obtained depending on the use of increasing doses of nitrogen have been statistically proven (corn-soy mixture NSR05 ~ +3,5 t/ha)”
Claim · model-written summary
Increasing nitrogen doses significantly increased clover yield, with NSR05 about +1,25 t/ha.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The yield increases obtained depending on the use of increasing doses of nitrogen have been statistically proven (corn-soy mixture NSR05 ~ +3,5 t/ha), (clover NSR05 ~ +1,25 t/ha)”
Claim · model-written summary
Corn-soybean mixture profitability across all variants was 91,1–117,7%.
- Taxon
- corn and soybeans
Glycine maxZea mays subsp. mayse1
- Outcome
- level of profitabilitye0
- Value
- 91,1–117,7%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“in all variants the level of profitability of products amounted to 91,1–117,7%”
e1“cultivation of mixed crops of corn and soybeans”
Claim · model-written summary
Corn-soybean mixture sales income ranged from 14 469,6 to 21 169,7 thousand rubles/ha.
- Taxon
- corn and soybeans
Glycine maxZea mays subsp. mayse1
- Outcome
- income from the sale of productse0
- Value
- 14 469,6–21 169,7 thousand rubles/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The income from the sale of products varied in the range of 14 469,6–21 169,7 thousand rubles/ha.”
e1“cultivation of mixed crops of corn and soybeans”
Claim · model-written summary
The control corn-soybean mixture had minimum green-mass sales income of 14 469,6 thousand rubles/ha.
Verbatim
e0“The minimum income from the sale of the green mass of corn-soy mixture in the control variant is 14 469,6 thousand rubles/ha”
Claim · model-written summary
The highest top-dressing dose gave maximum corn-soybean mixture green-mass sales income of 21 169,7 thousand rubles/ha.
Verbatim
e0“the maximum in the variant with the highest dose of top dressing is 21 169,7 thousand rubles/ha”
e1“green mass of corn-soy mixture”
Claim · model-written summary
At 20,1 t/ha red clover yield, conditional net income was 3 963,0 rubles per hectare.
- Taxon
- red clover
Trifolium pratensee0 - Outcome
- conditional net incomee0
- Value
- 3 963,0 rublese0
- Qualifier
- yield of red clover of 20,1 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“With a yield of red clover of 20,1 t/ha, the conditional net income from 1 hectare amounted to 3 963,0 rubles”
Claim · model-written summary
At 20,1 t/ha red clover yield, profitability was 24,6%.
- Taxon
- red clover
Trifolium pratensee0 - Outcome
- profitability levele0
- Value
- 24,6%e0
- Qualifier
- yield of red clover of 20,1 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“With a yield of red clover of 20,1 t/ha, the conditional net income from 1 hectare amounted to 3 963,0 rubles, the profitability level is 24,6%.”
Claim · model-written summary
The authors consider cultivation of corn-soy mixture and red clover economically feasible for inclusion in a raw-material conveyor.
Verbatim
e0“the cultivation of corn-soy mixture and red clover by all economic indicators is possible without loss for an agricultural enterprise and it is advisable to include a raw material conveyor in the system.”
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See all 11 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.