Abstract
Abstract Little detailed information is available on the effectiveness of various inorganic and organic manganese (Mn) fertilizer sources in correcting deficiencies. Field experiments were conducted to evaluate the effectiveness of Mn sources for soil and foliar applications. In soil studies, MnSO 4 was compared with two inorganic sources, Mn‐oxysulfate and MnO. The percent water soluble Mn in the latter two sources was 55 and 0%, respectively. Granular (1.00 to 3.35 mm) inorganic sources were applied at rates up to 90 kg Mn ha −1 . The MnO was composed of < 45 µm particles compressed into granules. Granular MnSO 4 and Mn‐oxysulfate were equally effective, wheras MnO was ineffective. Soybean ( Glycine max . L.) yield was increased two years after application by the sulfate and oxysulfate sources at rates of 10 and 30 kg Mn ha −1 with optimum yield occurring at the 30 kg Mn ha −1 rate. Manganese sulfate was also compared with organic sources, Mn‐ethylenediaminetetraacetic acid (MnEDTA), Mn‐diethylenetriaminepentaacetic acid (MnDTPA), and several lignosulfonates, in field studies at rates up to 13 kg Mn ha −1 . The organic Mn sources chelates and complexes, as well as the sulfate, were ineffective at about 1 kg Mn −1 when broadcast and band applied. When the complexes were broadcast at rates of 3 to 13 kg Mn ha −1 , they were similar in effectiveness to MnSO 4 applied at the same rates. In the foliar study, three soluble inorganic sources, MnSO 4 , MnCl 2 , and Mn(NO 3 ) 2 , and the organic sources, MnEDTA and two Mn‐lignosulfonates, were evaluated. Both the inorganic and organic sources were equally effective in increasing yields.
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Claims 7
Claim · model-written summary
Granular MnSO 4 and Mn-oxysulfate were equally effective.
- Taxon
- Soybean
Glycine maxe1 - Treatment
- Granular MnSO 4e0
- Outcome
- equally effectivee0
- Direction
- equally effectivee0
- Comparator
- Mn‐oxysulfatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Granular MnSO 4 and Mn‐oxysulfate were equally effective, wheras MnO was ineffective”
e1“Soybean ( Glycine max . L.) yield”
Claim · model-written summary
Granular MnO was ineffective.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- MnOe0
- Outcome
- ineffectivee0
- Direction
- ineffectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Granular MnSO 4 and Mn‐oxysulfate were equally effective, wheras MnO was ineffective”
e1“Soybean ( Glycine max . L.) yield”
Claim · model-written summary
Sulfate and oxysulfate increased soybean yield two years after application at 10 and 30 kg Mn ha −1.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- sulfate and oxysulfate sources at rates of 10 and 30 kg Mn ha −1e0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- two years after applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean ( Glycine max . L.) yield was increased two years after application by the sulfate and oxysulfate sources at rates of 10 and 30 kg Mn ha −1”
Claim · model-written summary
Optimum soybean yield occurred at 30 kg Mn ha −1.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- 30 kg Mn ha −1e0
- Outcome
- yielde0
- Direction
- optimume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“optimum yield occurring at the 30 kg Mn ha −1 rate”
e1“Soybean ( Glycine max . L.) yield”
Claim · model-written summary
Organic Mn sources and sulfate were ineffective at about 1 kg Mn −1 when broadcast and band applied.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- organic Mn sources chelates and complexese0
- Outcome
- ineffectivee0
- Direction
- ineffectivee0
- Qualifier
- broadcast and band appliede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The organic Mn sources chelates and complexes, as well as the sulfate, were ineffective at about 1 kg Mn −1 when broadcast and band applied”
e1“Soybean ( Glycine max . L.) yield”
Claim · model-written summary
Broadcast Mn complexes at 3 to 13 kg Mn ha −1 were similarly effective to MnSO 4.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- complexes were broadcast at rates of 3 to 13 kg Mn ha −1e0
- Outcome
- effectivenesse0
- Direction
- similare0
- Comparator
- MnSO 4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the complexes were broadcast at rates of 3 to 13 kg Mn ha −1 , they were similar in effectiveness to MnSO 4 applied at the same rates”
e1“Soybean ( Glycine max . L.) yield”
Claim · model-written summary
Foliar inorganic and organic Mn sources were equally effective in increasing yields.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- inorganic and organic sourcese0
- Outcome
- yieldse0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the inorganic and organic sources were equally effective in increasing yields”
e1“Soybean ( Glycine max . L.) yield”
The same questions in other papers
manganese atom · yield · Glycine max (soybean)Results differ
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- no effect
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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.