Abstract
Abstract Recently, Virginia farmers have experienced more cases of Mn deficiency in peanuts ( Arachis hypogaea L.). More information was needed concerning the relative effectiveness of various commercial sources of Mn and methods of application on peanuts. Several sources of Mn were sprayed, broadcast, or banded on peanuts in 1975 and 1977 under conditions where considerable chlorosis typical of Mn deficiency was prevalent both years in a sandy Aquic Hapludult, pH 6.5. Peanut yields in 1975 averaged 3,915 kg/ha where sources of Mn were sprayed on foliage. Soil‐applied (band or broadcast) sources averaged 3,385 kg/ha. Check plot yield was 2,620 kg/ha. Highest yields were obtained from the Sequestrene treatment (Chelate, 0.45 kg/ha Mn) followed closely by the Manzate 200 (C 4 H 6 MnN 2 S 4 , 1.1 kg/ha Mn) Sorba‐Spray Mn (MnSO 4 , 0.19 kg/ha Mn) and Manganese sulfate treatments (3.36 kg/ha Mn), each sprayed three times except Manzate (4 sprays). Five other products where the Mn source was either MnSO 4 , MnO, or both also were included. Sources in 1977 included only Man‐Gro (MnSO 4 ), Manganese sulfate, and Dithane M‐45 (C 4 H 6 MnN 2 S 4 ), but combination treatments with Mn banded on the row and sprayed on foliage were included. Average yields obtained from soil‐only (broadcast or banded), combination soil and foliar, and foliar‐only treatments were 2,640 kg/ha, 2,720 kg/ha, and 2,820 kg/ha, respectively. The check plot yielded 2,035 kg/ha. Highest yields were obtained from 4.48 kg/ha of Mn as MnSO 4 in three sprays (2.24 kg/ha in first spray), whereas the yield from a broadcast treatment (44.8 kg/ha) of Mn was nearly as high. Drought probably limited yield potentials particularly in 1977.
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Claims 11
Claim · model-written summary
Foliar manganese treatments averaged 3,915 kg/ha peanut yield in 1975.
- Taxon
- Peanuts
Arachis hypogaeat0 - Treatment
- sources of Mn were sprayed on foliagee0
- Outcome
- Peanut yieldse0
- Value
- 3,915 kg/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut yields in 1975 averaged 3,915 kg/ha where sources of Mn were sprayed on foliage.”
t0“Peanuts”
Claim · model-written summary
Soil-applied manganese treatments averaged 3,385 kg/ha peanut yield in 1975.
- Taxon
- PeanutsArachis hypogaeat0
- Treatment
- Soil‐applied (band or broadcast) sourcese0
- Outcome
- Peanut yieldse1
- Value
- 3,385 kg/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil‐applied (band or broadcast) sources averaged 3,385 kg/ha.”
e1“Peanut yields in 1975”
t0“Peanuts”
Claim · model-written summary
The untreated check plot yielded 2,620 kg/ha in 1975.
- Taxon
- PeanutsArachis hypogaeat0
- Outcome
- Check plot yielde0
- Value
- 2,620 kg/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Check plot yield was 2,620 kg/ha.”
t0“Peanuts”
Claim · model-written summary
Sequestrene treatment produced the highest yields in 1975.
- Taxon
- PeanutsArachis hypogaeat0
- Treatment
- Sequestrene treatment (Chelate, 0.45 kg/ha Mn)e0
- Outcome
- yieldse0
- Direction
- Higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest yields were obtained from the Sequestrene treatment (Chelate, 0.45 kg/ha Mn)”
t0“Peanuts”
Claim · model-written summary
Manzate 200, Sorba-Spray Mn and manganese sulfate followed Sequestrene closely for 1975 yield.
- Taxon
- PeanutsArachis hypogaeat0
- Outcome
- followed closelye0
- Comparator
- Sequestrene treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“followed closely by the Manzate 200 (C 4 H 6 MnN 2 S 4 , 1.1 kg/ha Mn) Sorba‐Spray Mn (MnSO 4 , 0.19 kg/ha Mn) and Manganese sulfate treatments (3.36 kg/ha Mn)”
e1“Highest yields were obtained from the Sequestrene treatment”
t0“Peanuts”
Claim · model-written summary
Soil-only manganese treatments averaged 2,640 kg/ha in 1977.
- Taxon
- PeanutsArachis hypogaeat0
- Treatment
- soil‐only (broadcast or banded)e0
- Outcome
- Average yieldse0
- Value
- 2,640 kg/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average yields obtained from soil‐only (broadcast or banded), combination soil and foliar, and foliar‐only treatments were 2,640 kg/ha, 2,720 kg/ha, and 2,820 kg/ha, respectively.”
t0“Peanuts”
Claim · model-written summary
Combined soil and foliar manganese treatments averaged 2,720 kg/ha in 1977.
- Taxon
- PeanutsArachis hypogaeat0
- Treatment
- combination soil and foliare0
- Outcome
- Average yieldse0
- Value
- 2,720 kg/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average yields obtained from soil‐only (broadcast or banded), combination soil and foliar, and foliar‐only treatments were 2,640 kg/ha, 2,720 kg/ha, and 2,820 kg/ha, respectively.”
t0“Peanuts”
Claim · model-written summary
Foliar-only manganese treatments averaged 2,820 kg/ha in 1977.
- Taxon
- PeanutsArachis hypogaeat0
- Treatment
- foliar‐only treatmentse0
- Outcome
- Average yieldse0
- Value
- 2,820 kg/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average yields obtained from soil‐only (broadcast or banded), combination soil and foliar, and foliar‐only treatments were 2,640 kg/ha, 2,720 kg/ha, and 2,820 kg/ha, respectively.”
t0“Peanuts”
Claim · model-written summary
The 1977 check plot yielded 2,035 kg/ha.
- Taxon
- PeanutsArachis hypogaeat0
- Outcome
- check plot yieldede0
- Value
- 2,035 kg/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The check plot yielded 2,035 kg/ha.”
t0“Peanuts”
Claim · model-written summary
Three manganese sulfate sprays at 4.48 kg/ha Mn gave the highest 1977 yield.
- Taxon
- PeanutsArachis hypogaeat0
- Treatment
- 4.48 kg/ha of Mn as MnSO 4 in three sprayse0
- Outcome
- yieldse0
- Direction
- Higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest yields were obtained from 4.48 kg/ha of Mn as MnSO 4 in three sprays”
t0“Peanuts”
Claim · model-written summary
Broadcast manganese at 44.8 kg/ha yielded nearly as much as the best spray treatment.
- Taxon
- PeanutsArachis hypogaeat0
- Treatment
- broadcast treatment (44.8 kg/ha) of Mne0
- Outcome
- yielde0
- Direction
- nearly as highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the yield from a broadcast treatment (44.8 kg/ha) of Mn was nearly as high”
t0“Peanuts”
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See all 10 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.