Abstract
Abstract Oats (Avena sativa L.) are often harvested for silage in the Great Lakes states. The objective of this research was to obtain additional information on the response of oats to N and K fertilization. ‘Froker’ spring oats were grown from seed under 27 C day/21 C night temperatures in a growth chamber. The soil was a 4:1 mixture of Dodge silt loam soil (Typic Argiudoll) and sand that contained low levels of N and K. The potted plants were fertilized with 0, 50, 100, and 200 kg/ha of N as NH4NO3 in all combinations with 0, 200, and 400 kg/ha of K as KC1. Plants were harvested at early inflorescence emergence (43 days after seeding). Fertilization with N significantly increased the dry matter yields (g/pot) of the herbage and total plant, the number of axillary tillers/pot, and herbage N percentage. Root yields were increased only with the first increment of N. Nitrogen fertilization had no significant effect on height of the primary shoots and herbage K percentage. The first increment of K (200 kg K/ha) significantly increased herbage and total plant dry matter yields, while the second increment (400 kg K/ha) gave no further yield increases. However, number of axillary tillers/pot and herbage K percentage were increased significantly with each higher K rate. Potassium fertilization had no significant effect on root yield, primary shoot height, and herbage N percentage. It was concluded that the vegetative growth of oats is very responsive to N fertilization to the highest rate applied (200 kg N/ha), but responds only to the first increment of K (200 kg K/ha).
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Claims 8
Claim · model-written summary
Nitrogen fertilization significantly increased herbage and total plant dry matter yield of oats grown in a growth chamber.
- Taxon
- Avena sativa
Avena sativae0 - Material
- Frokere1
- Treatment
- Fertilization with Ne3
- Outcome
- dry matter yields (g/pot) of the herbage and total plante3
- Direction
- increasede3
- Setting
- growth chambere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oats (Avena sativa L.)”
e1“Froker”
e2“spring oats were grown from seed under 27 C day/21 C night temperatures in a growth chamber”
e3“Fertilization with N significantly increased the dry matter yields (g/pot) of the herbage and total plant, the number of axillary tillers/pot, and herbage N percentage”
Claim · model-written summary
Nitrogen fertilization significantly increased the number of axillary tillers per pot and herbage N percentage of oats grown in a growth chamber.
- Taxon
- Avena sativaAvena sativae0
- Material
- Frokere1
- Treatment
- Fertilization with Ne3
- Outcome
- number of axillary tillers/pot, and herbage N percentagee3
- Direction
- increasede3
- Setting
- growth chambere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oats (Avena sativa L.)”
e1“Froker”
e2“spring oats were grown from seed under 27 C day/21 C night temperatures in a growth chamber”
e3“Fertilization with N significantly increased the dry matter yields (g/pot) of the herbage and total plant, the number of axillary tillers/pot, and herbage N percentage”
Claim · model-written summary
Root yield of oats increased with the first increment of nitrogen.
- Taxon
- Avena sativaAvena sativae0
- Material
- Frokere1
- Treatment
- first increment of Ne4
- Outcome
- Root yieldse4
- Direction
- increasede4
- Setting
- growth chambere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oats (Avena sativa L.)”
e1“Froker”
e2“spring oats were grown from seed under 27 C day/21 C night temperatures in a growth chamber”
e4“Root yields were increased only with the first increment of N”
Claim · model-written summary
Nitrogen fertilization had no significant effect on primary shoot height or herbage K percentage of oats.
- Taxon
- Avena sativaAvena sativae0
- Material
- Frokere1
- Treatment
- Nitrogen fertilizatione5
- Outcome
- height of the primary shoots and herbage K percentagee5
- Direction
- no significant effecte5
- Setting
- growth chambere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oats (Avena sativa L.)”
e1“Froker”
e2“spring oats were grown from seed under 27 C day/21 C night temperatures in a growth chamber”
e5“Nitrogen fertilization had no significant effect on height of the primary shoots and herbage K percentage”
Claim · model-written summary
The first increment of potassium (200 kg K/ha) significantly increased herbage and total plant dry matter yield of oats.
- Taxon
- Avena sativaAvena sativae0
- Material
- Frokere1
- Treatment
- first increment of K (200 kg K/ha)e6
- Outcome
- herbage and total plant dry matter yieldse6
- Direction
- increasede6
- Setting
- growth chambere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oats (Avena sativa L.)”
e1“Froker”
e2“spring oats were grown from seed under 27 C day/21 C night temperatures in a growth chamber”
e6“The first increment of K (200 kg K/ha) significantly increased herbage and total plant dry matter yields”
Claim · model-written summary
The second increment of potassium (400 kg K/ha) gave no further yield increase in oats.
- Taxon
- Avena sativaAvena sativae0
- Material
- Frokere1
- Treatment
- second increment (400 kg K/ha)e7
- Outcome
- yielde7
- Direction
- no further yield increasese7
- Setting
- growth chambere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oats (Avena sativa L.)”
e1“Froker”
e2“spring oats were grown from seed under 27 C day/21 C night temperatures in a growth chamber”
e7“while the second increment (400 kg K/ha) gave no further yield increases”
Claim · model-written summary
Potassium fertilization significantly increased the number of axillary tillers per pot and herbage K percentage of oats with each higher rate.
- Taxon
- Avena sativaAvena sativae0
- Material
- Frokere1
- Treatment
- each higher K ratee3
- Outcome
- number of axillary tillers/pot and herbage K percentagee3
- Direction
- increasede3
- Setting
- growth chambere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oats (Avena sativa L.)”
e1“Froker”
e2“spring oats were grown from seed under 27 C day/21 C night temperatures in a growth chamber”
e3“number of axillary tillers/pot and herbage K percentage were increased significantly with each higher K rate”
Claim · model-written summary
Potassium fertilization had no significant effect on root yield, primary shoot height or herbage N percentage of oats.
- Taxon
- Avena sativaAvena sativae0
- Material
- Frokere1
- Treatment
- Potassium fertilizatione3
- Outcome
- root yield, primary shoot height, and herbage N percentagee3
- Direction
- no significant effecte3
- Setting
- growth chambere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oats (Avena sativa L.)”
e1“Froker”
e2“spring oats were grown from seed under 27 C day/21 C night temperatures in a growth chamber”
e3“Potassium fertilization had no significant effect on root yield, primary shoot height, and herbage N percentage”
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See all 160 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.