Abstract
Abstract We determined the effect of N fertilization on dry matter (DM) yield, predicted milk yield, and forage quality of fresh (green chopped) and ensiled forage of two brown midrib (BMR) hybrids, a leafy hybrid, and a conventional silage hybrid. Increasing N rates from 0 to 200 kg ha −1 increased corn grain, stover and whole plant DM yield and milk yield. The forage yield and quality response to N was similar for all hybrids. Nitrogen fertilization increased forage crude protein (CP) concentration but had little effect on other forage quality components. BMR hybrids, F377 and F657, had the lowest grain, stover and whole plant yield but had the highest digestibility and predicted milk yield Mg −1 of forage. Predicted milk yield ha −1 was similar for the BMR, leafy and conventional hybrids. Ensiling reduced starch concentration compared with green chopped forage, but effects on other forage quality variables were less consistent. Hybrid and N fertilization affects were similar for green chopped and ensiled corn forage.
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Claims 12
Claim · model-written summary
Increasing N rates increased corn grain, stover and whole-plant dry matter yield.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- N ratese1
- Outcome
- corn grain, stover and whole plant DM yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased corn grain, stover and whole plant DM yield and milk yield”
e1“Increasing N rates”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
Increasing N rates increased predicted milk yield.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- N ratese1
- Outcome
- milk yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased corn grain, stover and whole plant DM yield and milk yield”
e1“Increasing N rates”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
Nitrogen fertilization increased forage crude protein concentration.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Nitrogen fertilizatione2
- Outcome
- forage crude protein (CP) concentratione2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Nitrogen fertilization increased forage crude protein (CP) concentration but had little effect on other forage quality components”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
Nitrogen fertilization had little effect on other forage quality components.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Nitrogen fertilizatione2
- Outcome
- other forage quality componentse2
- Direction
- little effecte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Nitrogen fertilization increased forage crude protein (CP) concentration but had little effect on other forage quality components”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
BMR hybrids F377 and F657 had the lowest grain, stover and whole-plant yield.
- Taxon
- CornZea mays subsp. mayst0
- Material
- F377 and F657e3
- Outcome
- grain, stover and whole plant yielde3
- Direction
- loweste3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“BMR hybrids, F377 and F657, had the lowest grain, stover and whole plant yield”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
BMR hybrids F377 and F657 had the highest forage digestibility.
- Taxon
- CornZea mays subsp. mayst0
- Material
- F377 and F657e4
- Outcome
- digestibilitye4
- Direction
- higheste4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“BMR hybrids, F377 and F657, had the lowest grain, stover and whole plant yield but had the highest digestibility”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
Predicted milk yield per hectare was similar for the BMR, leafy and conventional hybrids.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- milk yielde0
- Direction
- was similare6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased corn grain, stover and whole plant DM yield and milk yield”
e6“was similar for the BMR, leafy and conventional hybrids”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
Ensiling reduced starch concentration compared with green chopped forage.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Ensilinge7
- Outcome
- starch concentratione7
- Direction
- reducede7
- Comparator
- green chopped foragee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Ensiling reduced starch concentration compared with green chopped forage”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
Hybrid and N fertilization effects were similar for green chopped and ensiled forage.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- N fertilizatione0
- Outcome
- Hybrid and N fertilization affectse0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hybrid and N fertilization affects were similar for green chopped and ensiled corn forage”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
The forage yield and quality response to N was similar for all hybrids.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- forage yield and quality response to Ne0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The forage yield and quality response to N was similar for all hybrids”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
Ensiling had less consistent effects on other forage quality variables.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- effects on other forage quality variablese0
- Direction
- less consistente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects on other forage quality variables were less consistent”
t0“Corn Silage Yield and Quality”
Claim · model-written summary
BMR hybrids had the highest predicted milk yield.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- predicted milk yielde0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but had the highest digestibility and predicted milk yield”
t0“Corn Silage Yield and Quality”
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