Abstract
Abstract Field experiments were conducted to control lime‐induced Fe chlorosis, Zn dwarfness, and N deficiency in a chlorosis‐susceptible ornamental plant, inca rosea L. FeEDDHA, ZnEDTA, and urea were added to the soil or to the foliage. Soil application of fertilizers was superior to the foliar application in correcting chlorosis, increasing chlorophyll content and improving foliage growth and flowering. Effect of FeEDDHA applied to the soil started to diminish after six to eight weeks; therefore, frequent application of Fe chelate was advised. Fe application was found to enhance the uptake of Zn, Cu and Mn by the plants. The use of total Fe contents as an index for Fe status in plants was reliable when these contents were based on fresh weight and was misleading when based on dry weight. The use of dry weight led also to erroneous results regarding the interrelationships between micronutrients. The determination of active iron (HCl‐extractable Fe) improved the diagnosis of Fe status in plants. Chlor‐otic leaves had less active Fe than green leaves.
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Claims 9
Claim · model-written summary
Soil application of fertilizers was superior to foliar application in correcting chlorosis.
- Taxon
- vinca rosea
Catharanthus roseust0 - Treatment
- Soil application of fertilizerse1
- Outcome
- correcting chlorosis, increasing chlorophyll contente1
- Direction
- superiore1
- Comparator
- foliar applicatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of iron deficiency on growth, micronutrient status and chlorophyll content ofvinca roseagrown in calcareous soils”
e1“Soil application of fertilizers was superior to the foliar application in correcting chlorosis, increasing chlorophyll content and improving foliage growth and flowering”
Claim · model-written summary
Soil application of fertilizers was superior to foliar application in improving foliage growth and flowering.
- Taxon
- vinca roseaCatharanthus roseust0
- Treatment
- Soil application of fertilizerse1
- Outcome
- improving foliage growth and floweringe1
- Direction
- superiore1
- Comparator
- foliar applicatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of iron deficiency on growth, micronutrient status and chlorophyll content ofvinca roseagrown in calcareous soils”
e1“Soil application of fertilizers was superior to the foliar application in correcting chlorosis, increasing chlorophyll content and improving foliage growth and flowering”
Claim · model-written summary
The effect of FeEDDHA applied to the soil started to diminish after six to eight weeks.
- Taxon
- vinca roseaCatharanthus roseust0
- Treatment
- FeEDDHA applied to the soile2
- Outcome
- Effecte2
- Direction
- diminishe2
- Value
- six to eight weekse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of iron deficiency on growth, micronutrient status and chlorophyll content ofvinca roseagrown in calcareous soils”
e2“Effect of FeEDDHA applied to the soil started to diminish after six to eight weeks”
Claim · model-written summary
The authors advise frequent application of Fe chelate.
- Taxon
- vinca roseaCatharanthus roseust0
- Outcome
- frequent application of Fe chelatee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of iron deficiency on growth, micronutrient status and chlorophyll content ofvinca roseagrown in calcareous soils”
e3“therefore, frequent application of Fe chelate was advised”
Claim · model-written summary
Fe application enhanced the uptake of Zn, Cu and Mn by the plants.
- Taxon
- vinca roseaCatharanthus roseust0
- Treatment
- Fe applicatione4
- Outcome
- uptake of Zn, Cu and Mne4
- Direction
- enhancee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of iron deficiency on growth, micronutrient status and chlorophyll content ofvinca roseagrown in calcareous soils”
e4“Fe application was found to enhance the uptake of Zn, Cu and Mn by the plants”
Claim · model-written summary
Total Fe content was a reliable index of Fe status when based on fresh weight.
- Taxon
- vinca roseaCatharanthus roseust0
- Outcome
- as an index for Fe statuse5
- Qualifier
- reliable when these contents were based on fresh weighte5
- Comparator
- dry weighte5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of iron deficiency on growth, micronutrient status and chlorophyll content ofvinca roseagrown in calcareous soils”
e5“The use of total Fe contents as an index for Fe status in plants was reliable when these contents were based on fresh weight and was misleading when based on dry weight”
Claim · model-written summary
Total Fe content based on dry weight gave erroneous results for the interrelationships between micronutrients.
- Taxon
- vinca roseaCatharanthus roseust0
- Outcome
- interrelationships between micronutrientse6
- Qualifier
- erroneous resultse6
- Comparator
- dry weighte6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of iron deficiency on growth, micronutrient status and chlorophyll content ofvinca roseagrown in calcareous soils”
e6“The use of dry weight led also to erroneous results regarding the interrelationships between micronutrients”
Claim · model-written summary
Determination of active Fe improved the diagnosis of Fe status compared with total Fe content.
- Taxon
- vinca roseaCatharanthus roseust0
- Outcome
- diagnosis of Fe status in plantse7
- Comparator
- total Fe contentse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of iron deficiency on growth, micronutrient status and chlorophyll content ofvinca roseagrown in calcareous soils”
e7“improved the diagnosis of Fe status in plants”
e5“The use of total Fe contents as an index for Fe status in plants was reliable when these contents were based on fresh weight and was misleading when based on dry weight”
Claim · model-written summary
Chlorotic leaves had less active Fe than green leaves.
- Taxon
- vinca roseaCatharanthus roseust0
- Outcome
- active Fee7
- Direction
- lesse7
- Comparator
- green leavese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of iron deficiency on growth, micronutrient status and chlorophyll content ofvinca roseagrown in calcareous soils”
e7“had less active Fe than green leaves”
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See all 8 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.