Abstract
Abstract Effects of dairy cattle manure on root growth of two forage crops were evaluated in a rhizotron study. The four treatments consisted of mineral fertilizer mixed into or applied to surface soils; manure incorporated into surface soils at two rates: 70 and 140 metric tons/ha; and manure layered at 25‐cm depth between the surface and subsoil at 140 metric tons/ha. Incorporation of manure promoted early root and top growth of pearl millet ( Pennisetum americanum [L.] Leeke vat. ‘Gahi‐1’). The increase in growth was attributed to increased soil temperature. The layered treatment acted as a barrier to gas movement and inhibited early root growth into the subsoil. Although lack of deep rooting reduced early top growth, millet eventually grew most rapidly on the layered treatment. Total dry matter yield on the layered treatment was equal to that from the 140 metric ton/ha incorporated treatment; lowest yield was on the mineral fertilizer treatment. Yield of fall‐planted rye ( Secale cereale L.) was. nearly three times that of the mineral‐fertilized plots. Root growth of rye was reduced with the high rate of incorporated manure.
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Claims 9
Claim · model-written summary
Incorporated manure promoted early root and top growth in pearl millet.
- Taxon
- pearl millet
Cenchrus americanuse0 - Material
- ‘Gahi‐1’e0
- Treatment
- Incorporation of manuree0
- Outcome
- early root and top growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of manure promoted early root and top growth of pearl millet ( Pennisetum americanum [L.] Leeke vat. ‘Gahi‐1’)”
Claim · model-written summary
Increased soil temperature was attributed as the cause of greater growth.
- Taxon
- pearl milletCenchrus americanuse0
- Outcome
- increase in growthe0
- Qualifier
- increased soil temperaturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of manure promoted early root and top growth of pearl millet ( Pennisetum americanum [L.] Leeke vat. ‘Gahi‐1’). The increase in growth was attributed to increased soil temperature”
Claim · model-written summary
Layered manure inhibited early root growth into the subsoil.
- Taxon
- millett0
- Treatment
- layered treatmente0
- Outcome
- early root growth into the subsoile0
- Direction
- inhibitede0
Not reportedComparator
Verbatim
e0“The layered treatment acted as a barrier to gas movement and inhibited early root growth into the subsoil”
t0“millet eventually grew most rapidly”
Claim · model-written summary
Lack of deep rooting reduced early top growth in millet.
Verbatim
e0“Although lack of deep rooting reduced early top growth, millet eventually grew most rapidly on the layered treatment”
Claim · model-written summary
Millet eventually grew most rapidly on the layered treatment.
Not reportedComparator
Verbatim
e0“millet eventually grew most rapidly on the layered treatment”
Claim · model-written summary
Dry matter yield with layered manure equalled yield with incorporated manure.
Verbatim
e0“Total dry matter yield on the layered treatment was equal to that from the 140 metric ton/ha incorporated treatment”
t0“millet eventually grew most rapidly”
Claim · model-written summary
The mineral fertilizer treatment had the lowest dry matter yield.
Verbatim
e0“lowest yield was on the mineral fertilizer treatment”
t0“millet eventually grew most rapidly”
Claim · model-written summary
Fall planted rye yielded nearly three times the mineral fertilized plots.
- Taxon
- rye
Secale cerealee0 - Treatment
- fall‐plantede0
- Outcome
- Yielde0
- Direction
- nearly three timese0
- Value
- nearly three timese0
- Comparator
- mineral‐fertilized plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield of fall‐planted rye ( Secale cereale L.) was. nearly three times that of the mineral‐fertilized plots”
Claim · model-written summary
High incorporated manure reduced rye root growth.
- Taxon
- ryeSecale cerealee0
- Treatment
- high rate of incorporated manuree0
- Outcome
- Root growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root growth of rye was reduced with the high rate of incorporated manure”
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See all 70 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.