Abstract
The addition of dolomitic limestone at 0.56, 1.12, 1.68, 2.24 and 2.80 metric tons/ha to three Orthic Podzol soil series improved the value per plot and quality of Virginia-type flue-cured tobacco. Applications above 5.04 metric tons/ha reduced dollar value per plot and above 3.36 metric tons dolomitic limestone/ha reduced quality. Calcium, magnesium and potassium content varied with seasons and locations during the three-year test period, but increasing rates of dolomitic limestone generally increased magnesium percentages and reduced calcium and potassium percentages in cured leaf tissue. Ca/Mg ratios ranging from 3.2:1 to 2.2:1 and K/Ca + Mg ratios from 0.63:1 to 1.02:1 were found to be associated with highest yield and quality.
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Claims 9
Claim · model-written summary
Moderate limestone rates improved tobacco plot value and quality.
- Taxon
- Virginia-type flue-cured tobaccoe0
- Treatment
- dolomitic limestone at 0.56, 1.12, 1.68, 2.24 and 2.80 metric tons/hae0
- Outcome
- value per plot and qualitye0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“The addition of dolomitic limestone at 0.56, 1.12, 1.68, 2.24 and 2.80 metric tons/ha to three Orthic Podzol soil series improved the value per plot and quality of Virginia-type flue-cured tobacco”
Claim · model-written summary
Applications above 5.04 metric tons per hectare reduced plot dollar value.
- Taxon
- FLUE-CURED TOBACCOt0
- Treatment
- Applications above 5.04 metric tons/hae0
- Outcome
- dollar value per plote0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Applications above 5.04 metric tons/ha reduced dollar value per plot”
t0“FLUE-CURED TOBACCO”
Claim · model-written summary
Limestone above 3.36 metric tons per hectare reduced quality.
- Taxon
- FLUE-CURED TOBACCOt0
- Treatment
- above 3.36 metric tons dolomitic limestone/hae0
- Outcome
- qualitye0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“above 3.36 metric tons dolomitic limestone/ha reduced quality”
t0“FLUE-CURED TOBACCO”
Claim · model-written summary
Cured-leaf calcium, magnesium and potassium contents varied by season and location.
- Taxon
- FLUE-CURED TOBACCOt0
- Outcome
- Calcium, magnesium and potassium contente0
- Qualifier
- seasonse0
- Setting
- locationse0
Not reportedDirection
Verbatim
e0“Calcium, magnesium and potassium content varied with seasons and locations during the three-year test period”
t0“FLUE-CURED TOBACCO”
Claim · model-written summary
Increasing limestone rates generally raised cured-leaf magnesium percentage.
- Taxon
- FLUE-CURED TOBACCOt0
- Treatment
- increasing rates of dolomitic limestonee0
- Outcome
- magnesium percentagese0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“increasing rates of dolomitic limestone generally increased magnesium percentages”
t0“FLUE-CURED TOBACCO”
Claim · model-written summary
Increasing limestone rates generally lowered cured-leaf calcium percentage.
- Taxon
- FLUE-CURED TOBACCOt0
- Organ / stage
- cured leaf tissuee0
- Treatment
- increasing rates of dolomitic limestonee0
- Outcome
- calciume0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“increasing rates of dolomitic limestone generally increased magnesium percentages and reduced calcium and potassium percentages in cured leaf tissue”
t0“FLUE-CURED TOBACCO”
Claim · model-written summary
Increasing limestone rates generally lowered cured-leaf potassium percentage.
- Taxon
- FLUE-CURED TOBACCOt0
- Organ / stage
- cured leaf tissuee0
- Treatment
- increasing rates of dolomitic limestonee0
- Outcome
- potassium percentagese0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“increasing rates of dolomitic limestone generally increased magnesium percentages and reduced calcium and potassium percentages in cured leaf tissue”
t0“FLUE-CURED TOBACCO”
Claim · model-written summary
Ca/Mg ratios from 3.2:1 to 2.2:1 were associated with highest yield and quality.
Verbatim
e0“Ca/Mg ratios ranging from 3.2:1 to 2.2:1 and K/Ca + Mg ratios from 0.63:1 to 1.02:1 were found to be associated with highest yield and quality”
t0“FLUE-CURED TOBACCO”
Claim · model-written summary
K/Ca + Mg ratios from 0.63:1 to 1.02:1 were associated with highest yield and quality.
Verbatim
e0“Ca/Mg ratios ranging from 3.2:1 to 2.2:1 and K/Ca + Mg ratios from 0.63:1 to 1.02:1 were found to be associated with highest yield and quality”
t0“FLUE-CURED TOBACCO”
The same questions in other papers
calcium oxide · quality: general · Nicotiana tabacum (tobacco)Positive and negative results
2 in the opposite direction
- positive
- positive
lime · quality: general · Nicotiana tabacum (tobacco)Positive and negative results
6 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 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.