Abstract
Abstract A culturing unit was constructed whereby the influence of exchangeabe sodium on the growth and mineral uptake of established alfalfa ( Medicago sativa ) could be determined. Two compartments, separated by a membrane through which roots could penetrate, were placed one above another. The top compartment contained a calcareous nonsodic soil to which Ca 45 CO 3 was added. The lower compartment contained complete nutrient solution. Following the establishment of the plants in the nonsodic soil and complete nutrient solution, four levels of exchangeable Na percentage, 0.9, 14.9, 35.4, and 54.9, were established by adding solutions of Na 2 CO 3 to the soil. The yield and Ca content of leaves was reduced by the sodic influence even though sufficient Ca was available to the plant through the nutrient solution. This decreased Ca uptake was compensated for by greater uptake of Mg.
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Claims 2
Claim · model-written summary
Sodic influence reduced the yield and leaf Ca content of alfalfa even though sufficient Ca was supplied in the nutrient solution.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- sodic influencee1
- Outcome
- yield and Ca content of leavese1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“established alfalfa ( Medicago sativa )”
e1“The yield and Ca content of leaves was reduced by the sodic influence”
Claim · model-written summary
Decreased Ca uptake was compensated by greater uptake of Mg in alfalfa.
- Taxon
- alfalfaMedicago sativae0
- Compound
- Cae1
- Outcome
- uptake of Mge1
- Direction
- greatere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“established alfalfa ( Medicago sativa )”
e1“This decreased Ca uptake was compensated for by greater uptake of Mg”
The same questions in other papers
salinity · yield · Medicago sativa (alfalfa)Positive and negative results
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- positive
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See all 19 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.