Abstract
Abstract A greenhouse study involving four levels each of Mo and limestone indicated that without application of both Mo and lime, the cauliflower ( Brassica oleracea , var. botrytis L.) crop produced very poor yields on the three soils investigated. Alfalfa ( Medicago sativa L., var. ‘Narragansett’) was also a failure without added lime. At soil pH values of 5.5 and above, Mo applications increased the yield of alfalfa on Culloden sandy loam and O'Leary sandy clay loam soils, but gave no response on Acadia silty clay loam soil. Bromegrass ( Bromus inermis Leyss., var. ‘Saratoga’) showed a marked response to application of lime, but very little response to application of Mo. Cauliflower yield showed a highly significant Mo × lime interaction on Culloden and O'Leary soils, where without added Mo, lime treatment up to pH 6.5 failed to show any increase in yield. Addition of different levels of lime did not change the exchangeable Mo content of any of the three soils, after growing crops. The application of Mo or lime increased the Mo content of all crop tissues up to the highest level of applied Mo or lime. Application of lime substantially increased the Mo content of cauliflower and alfalfa while bromegrass showed less increase. There was a marked Mo × lime interaction on the Mo content of all crops, with much higher Mo contents in the plant when lime and Mo were applied together than when either treatment was applied alone. Liming to pH 6.5 without added Mo did not increase the Mo content of crops over 1.5 ppm. In the absence of added Mo, cupping and drying of the edges of true leaves of cauliflower appeared at the early stage of growth whether or not lime had been applied to the soils. During the later stages of growth, these symptoms in most cases were associated with yellowing between the veins of leaves.
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Claims 13
Claim · model-written summary
Cauliflower produced very poor yields without both Mo and lime.
- Taxon
- cauliflower
Brassica oleracea var. botrytise0 - Outcome
- yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“without application of both Mo and lime, the cauliflower ( Brassica oleracea , var. botrytis L.) crop produced very poor yields”
Claim · model-written summary
Alfalfa failed without added lime.
- Taxon
- Alfalfa
Medicago sativae0 - Outcome
- failuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa ( Medicago sativa L., var. ‘Narragansett’) was also a failure without added lime”
Claim · model-written summary
Mo increased alfalfa yield on Culloden and O’Leary soils at pH 5.5 or higher.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Mo applicationse0
- Outcome
- yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At soil pH values of 5.5 and above, Mo applications increased the yield of alfalfa on Culloden sandy loam and O'Leary sandy clay loam soils”
Claim · model-written summary
Mo gave no alfalfa yield response on Acadia soil.
Not reportedTaxonTreatmentComparator
Verbatim
e0“but gave no response on Acadia silty clay loam soil”
Claim · model-written summary
Bromegrass responded markedly to lime and only slightly to Mo.
Verbatim
e0“Bromegrass ( Bromus inermis Leyss., var. ‘Saratoga’) showed a marked response to application of lime, but very little response to application of Mo”
Claim · model-written summary
Cauliflower yield showed a highly significant Mo by lime interaction.
- Taxon
- CauliflowerBrassica oleracea var. botrytise0
- Treatment
- Mo × limee0
- Outcome
- yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cauliflower yield showed a highly significant Mo × lime interaction on Culloden and O'Leary soils”
Claim · model-written summary
Lime without Mo did not increase cauliflower yield up to pH 6.5.
Not reportedTaxonComparator
Verbatim
e0“without added Mo, lime treatment up to pH 6.5 failed to show any increase in yield”
Claim · model-written summary
Lime levels did not change exchangeable soil Mo.
- Outcome
- exchangeable Mo contente0
Not reportedTaxon
Verbatim
e0“Addition of different levels of lime did not change the exchangeable Mo content of any of the three soils”
Claim · model-written summary
Mo or lime increased molybdenum content in all crop tissues.
- Outcome
- Mo contente0
Not reportedTaxon
Verbatim
e0“The application of Mo or lime increased the Mo content of all crop tissues”
Claim · model-written summary
Lime raised tissue Mo substantially in cauliflower and alfalfa, less in bromegrass.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Outcome
- Mo contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of lime substantially increased the Mo content of cauliflower and alfalfa while bromegrass showed less increase”
Claim · model-written summary
Combined Mo and lime gave higher tissue Mo than either alone.
Verbatim
e0“much higher Mo contents in the plant when lime and Mo were applied together than when either treatment was applied alone”
Claim · model-written summary
Liming to pH 6.5 without Mo did not increase crop Mo content over 1.5 ppm.
Verbatim
e0“Liming to pH 6.5 without added Mo did not increase the Mo content of crops over 1.5 ppm”
Claim · model-written summary
Without Mo, young cauliflower leaves showed cupping and edge drying, later often with interveinal yellowing.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Outcome
- cupping and dryinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the absence of added Mo, cupping and drying of the edges of true leaves of cauliflower appeared at the early stage of growth whether or not lime had been applied to the soils. During the later stages of growth, these symptoms in most cases were associated with yellowing between the veins of leaves”
The same questions in other papers
molybdenum atom · yield · Medicago sativa (alfalfa)Results differ
17 papers in the same direction as this paper · 8 in the opposite direction
- positive
- no effect
- no effect
22 papers more in this group
See all 26 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.