Abstract
The purpose of the study is to substantiate the optimal timing of sowing corn in the conditions of the Middle Urals. At the Ural Research Institute of Agriculture, the reaction of three corn hybrids with different early maturity to the sowing dates was studied. Sowing was carried out on May 5–9 and May 25. Observations and records were carried out according to the accepted methods of the All-Russian Research Institute of Maize. The results of the study showed that in the conditions of the forest-meadow zone of the Middle Urals, the transfer of the sowing date to the beginning of May leads to an advance in the flowering phase of the cob by 16 days, and the milky ripeness of grain by 15 days relative to sowing at the end of May. This provides additional resources of heat and time for full filling of grain. A stable effect of sowing time on the yield of dry matter was not found. Grain yield, on the contrary, was significantly higher when sown in early May. The maximum grain productivity was noted in the early maturing hybrid Kubansky 102 MB (4.03 t/ha). A positive effect of the early sowing period on the share of grain in the dry matter of all three hybrids and a decrease in the harvesting moisture content of grain by 12.4 percentage points were noted. The increase in the grain component in the structure of the plant had a positive effect on the content of fodder starch in the dry matter. Correlation analysis showed a close positive relationship between the yield of starch and the yield of corn grain and a weak relationship between this indicator and the yield of dry matter. This makes it possible to use the grain yield as an integrated indicator of the productivity and nutritional value of corn grown for feed in the conditions of the Middle Urals.
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Claims 11
Claim · model-written summary
Early May sowing advanced cob flowering by 16 days.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- beginning of Maye0
- Outcome
- flowering phase of the cobe0
- Direction
- advancee0
- Value
- 16 dayse0
- Comparator
- end of Maye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transfer of the sowing date to the beginning of May leads to an advance in the flowering phase of the cob by 16 days, and the milky ripeness of grain by 15 days relative to sowing at the end of May”
t0“CORN”
Claim · model-written summary
Early May sowing advanced grain milky ripeness by 15 days.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- beginning of Maye0
- Outcome
- milky ripeness of graine0
- Direction
- advancee0
- Value
- 15 dayse0
- Comparator
- end of Maye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transfer of the sowing date to the beginning of May leads to an advance in the flowering phase of the cob by 16 days, and the milky ripeness of grain by 15 days relative to sowing at the end of May”
t0“CORN”
Claim · model-written summary
Sowing time had no stable effect on dry matter yield.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- sowing timee0
- Outcome
- yield of dry mattere0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A stable effect of sowing time on the yield of dry matter was not found.”
t0“CORN”
Claim · model-written summary
Early May sowing significantly raised grain yield.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- early Maye0
- Outcome
- Grain yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield, on the contrary, was significantly higher when sown in early May.”
t0“CORN”
Claim · model-written summary
Kubansky 102 MB had the highest grain productivity, 4.03 t/ha.
- Taxon
- cornZea mays subsp. mayst0
- Material
- Kubansky 102 MBe0
- Outcome
- grain productivitye0
- Direction
- maximume0
- Value
- 4.03 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum grain productivity was noted in the early maturing hybrid Kubansky 102 MB (4.03 t/ha).”
t0“CORN”
Claim · model-written summary
Early sowing raised grain share in dry matter of all three hybrids.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- early sowing periode0
- Outcome
- share of grain in the dry mattere0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A positive effect of the early sowing period on the share of grain in the dry matter of all three hybrids and a decrease in the harvesting moisture content of grain by 12.4 percentage points were noted.”
t0“CORN”
Claim · model-written summary
Early sowing lowered harvest grain moisture by 12.4 percentage points.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- early sowing periode0
- Outcome
- harvesting moisture content of graine0
- Direction
- decreasee0
- Value
- 12.4 percentage pointse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A positive effect of the early sowing period on the share of grain in the dry matter of all three hybrids and a decrease in the harvesting moisture content of grain by 12.4 percentage points were noted.”
t0“CORN”
Claim · model-written summary
A greater grain component increased fodder starch content in dry matter.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- graine0
- Outcome
- content of fodder starch in the dry mattere0
- Direction
- increaseinferrede0
- Qualifier
- grain componente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in the grain component in the structure of the plant had a positive effect on the content of fodder starch in the dry matter.”
t0“CORN”
Claim · model-written summary
Starch yield was closely positively correlated with corn grain yield.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- yield of starche0
- Direction
- positivee0
- Qualifier
- closee0
- Comparator
- yield of corn graine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Correlation analysis showed a close positive relationship between the yield of starch and the yield of corn grain and a weak relationship between this indicator and the yield of dry matter.”
Claim · model-written summary
Starch yield had a weak relationship with dry matter yield.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- yield of starche0
- Qualifier
- weak relationshipe0
- Comparator
- yield of dry mattere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Correlation analysis showed a close positive relationship between the yield of starch and the yield of corn grain and a weak relationship between this indicator and the yield of dry matter.”
Claim · model-written summary
The authors propose grain yield as an integrated measure of feed corn productivity and nutritional value.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- grain yield as an integrated indicatore0
- Setting
- Middle Uralse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This makes it possible to use the grain yield as an integrated indicator of the productivity and nutritional value of corn grown for feed in the conditions of the Middle Urals.”
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See all 269 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.