Abstract
Studies conducted on three podzol soils with original pH values of 5.0 to 5.4 showed that the sharpest decrease in boron concentration (from 117 to 388 down to 58 to 83 ppm) in barley (Hordeum vulgare L.) and pea (Pisum sativum L.) plant tissues occurred with addition of 2.5 g lime/kg soil. Such rates of lime resulted in soil pH values of 6.8 to 7.3. Additions of 5 g lime/kg soil resulted in soil pH values of 7.3 to 7.7 and further tissue B level decreases of lesser magnitude than the 2.5 g lime rate. A fourfold increase to 20 g lime did not result in further decreases in tissue B. At equivalent amounts of calcium, tissue B concentrations were much higher using CaSO4 rather than CaCO3. Plant tissue B was related to soil pH rather than to the amount of Ca. Chloride used as a source of Ca resulted in poor to no growth of crops. The greatest decreases in hot-water-soluble (hws) B occurred with 10 g lime/kg soil. Beyond this rate, no further decreases in hws B occurred. Liming induced B deficiency in peas. Tissue B levels of 8 ppm in peas were associated with B deficiency, and levels of greater than 61 ppm were associated with B toxicity symptoms on the foliage.
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Claims 11
Claim · model-written summary
Adding 2.5 g lime/kg soil caused the sharpest fall in boron concentration in barley and pea tissues.
- Taxon
- barley (Hordeum vulgare L.) and pea (Pisum sativum L.)
Lathyrus oleraceus.jpg?width=60)
Hordeum vulgaree0 - Treatment
- addition of 2.5 g lime/kg soile0
- Outcome
- boron concentratione0
- Direction
- decreasee0
- Value
- from 117 to 388 down to 58 to 83 ppme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the sharpest decrease in boron concentration (from 117 to 388 down to 58 to 83 ppm) in barley (Hordeum vulgare L.) and pea (Pisum sativum L.) plant tissues occurred with addition of 2.5 g lime/kg soil”
Claim · model-written summary
Adding 5 g lime/kg soil further decreased tissue boron less than the 2.5 g rate.
- Treatment
- 5 g lime/kg soile0
- Outcome
- tissue B levele0
- Direction
- decreasese0
- Qualifier
- lesser magnitudee0
- Comparator
- 2.5 g lime ratee0
Not reportedTaxon
Verbatim
e0“Additions of 5 g lime/kg soil resulted in soil pH values of 7.3 to 7.7 and further tissue B level decreases of lesser magnitude than the 2.5 g lime rate”
Claim · model-written summary
Increasing lime to 20 g did not further decrease tissue boron.
Not reportedTaxonComparator
Verbatim
e0“A fourfold increase to 20 g lime did not result in further decreases in tissue B”
Claim · model-written summary
At equal calcium amounts, CaSO4 gave higher tissue boron than CaCO3.
Not reportedTaxon
Verbatim
e0“At equivalent amounts of calcium, tissue B concentrations were much higher using CaSO4 rather than CaCO3”
Claim · model-written summary
Plant tissue boron was related to soil pH rather than calcium amount.
- Outcome
- Plant tissue Be0
Not reportedTaxonSetting
Verbatim
e0“Plant tissue B was related to soil pH rather than to the amount of Ca”
Claim · model-written summary
Calcium chloride resulted in poor to no crop growth.
Not reportedComparator
Verbatim
e0“Chloride used as a source of Ca resulted in poor to no growth of crops”
Claim · model-written summary
The largest decrease in hot-water-soluble boron occurred at 10 g lime/kg soil.
Not reportedTaxonComparator
Verbatim
e0“The greatest decreases in hot-water-soluble (hws) B occurred with 10 g lime/kg soil”
Claim · model-written summary
Rates beyond 10 g lime/kg soil gave no further decrease in hot-water-soluble boron.
Not reportedTaxonTreatmentComparator
Verbatim
e0“Beyond this rate, no further decreases in hws B occurred”
Claim · model-written summary
Liming induced boron deficiency in peas.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- Liminge0
- Outcome
- B deficiencye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Liming induced B deficiency in peas”
Claim · model-written summary
Pea tissue boron of 8 ppm was associated with deficiency.
- Taxon
- peasLathyrus oleraceuse0
- Outcome
- B deficiencye0
- Value
- 8 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tissue B levels of 8 ppm in peas were associated with B deficiency”
Claim · model-written summary
Pea tissue boron above 61 ppm was associated with foliar toxicity.
Not reportedTaxon
Verbatim
e0“levels of greater than 61 ppm were associated with B toxicity symptoms on the foliage”
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See all 14 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.