Abstract
The effects of varying potassium and calcium rates on the peanut yield was studied using three Hawaiian Latosols in a pot experiment. Total vegetative yields(whole plant),shelled peanuts and shelling percentages as related to soil treatment were analyzed statistically. Total vegetative yield increased significantly with potassium treatment in the Paaloa soil. On the Wahiawa soil response to soil treatment as measured by any form of peanut yield failed to give significant results. A significant interaction was found in total vegetative yield as a resut of soil treatment in the Waimanalo soil. When no potassium was added to the soil, increasing calcium levels eriously depressed the Shelled peanut yield and shelling percentage. A significant correlation was established between shelled peanut and total vegetative yield for all soils. The scatter diagram (Fig.13) indicates that the limiting factor or factors, for the peanut yields may have been a variable or variables, other than those for which the experiment was designed. It was presumed that the ratio of K/√<(Ca+Mg)/2> of the plant was a sensitive indicator of the shelled peanut yield. The potassium and calcium treatments significantly affected the potassium, calcium, and magnesium uptake of the peanut plant as shown by tissue analyses. An antagonistic trend between potassium and calcium uptake was evident on the Paaloa and Wahiawa soils. On the Waimanalo soil, the calcium treatment significantly affected the potassium uptake.
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Claims 10
Claim · model-written summary
Potassium significantly increased total vegetative yield in Paaloa soil.
- Taxon
- peanut
Arachis hypogaeae1 - Treatment
- potassium treatmente0
- Outcome
- Total vegetative yielde0
- Direction
- increasede0
- Setting
- Paaloa soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total vegetative yield increased significantly with potassium treatment in the Paaloa soil.”
e1“The effects of varying potassium and calcium rates on the peanut yield”
Claim · model-written summary
Soil treatments did not produce significant peanut yield responses in Wahiawa soil.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- soil treatmente0
- Outcome
- peanut yielde0
- Setting
- Wahiawa soile0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the Wahiawa soil response to soil treatment as measured by any form of peanut yield failed to give significant results.”
Claim · model-written summary
Soil treatments significantly interacted for total vegetative yield in Waimanalo soil.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- soil treatmente0
- Outcome
- total vegetative yielde0
- Setting
- Waimanalo soile0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant interaction was found in total vegetative yield as a resut of soil treatment in the Waimanalo soil.”
e1“The effects of varying potassium and calcium rates on the peanut yield”
Claim · model-written summary
Increasing calcium without potassium depressed shelled peanut yield and shelling percentage.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- increasing calcium levelse0
- Outcome
- Shelled peanut yield and shelling percentagee0
- Direction
- depressede0
- Qualifier
- When no potassium was added to the soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When no potassium was added to the soil, increasing calcium levels eriously depressed the Shelled peanut yield and shelling percentage.”
Claim · model-written summary
Shelled peanut yield and total vegetative yield were significantly correlated in all soils.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- total vegetative yielde0
- Qualifier
- for all soilse0
- Comparator
- shelled peanute0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant correlation was established between shelled peanut and total vegetative yield for all soils.”
Claim · model-written summary
The authors suggest untested variables may have limited peanut yields.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- peanut yieldse0
- Qualifier
- a variable or variables, other than those for which the experiment was designede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the limiting factor or factors, for the peanut yields may have been a variable or variables, other than those for which the experiment was designed.”
Claim · model-written summary
The plant K/√<(Ca+Mg)/2> ratio was presumed a sensitive shelled peanut yield indicator.
- Taxon
- peanutArachis hypogaeae0
- Compound
- K/√<(Ca+Mg)/2>e0
- Outcome
- shelled peanut yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was presumed that the ratio of K/√<(Ca+Mg)/2> of the plant was a sensitive indicator of the shelled peanut yield.”
Claim · model-written summary
Potassium and calcium treatments significantly affected peanut potassium, calcium and magnesium uptake.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- potassium and calcium treatmentse0
- Outcome
- potassium, calcium, and magnesium uptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The potassium and calcium treatments significantly affected the potassium, calcium, and magnesium uptake of the peanut plant as shown by tissue analyses.”
Claim · model-written summary
Potassium and calcium uptake showed an antagonistic trend in Paaloa and Wahiawa soils.
- Taxon
- peanutArachis hypogaeae1
- Compound
- potassiume0
- Outcome
- calcium uptakee0
- Qualifier
- antagonistic trende0
- Setting
- Paaloa and Wahiawa soilse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An antagonistic trend between potassium and calcium uptake was evident on the Paaloa and Wahiawa soils.”
e1“uptake of the peanut plant”
Claim · model-written summary
Calcium treatment significantly affected potassium uptake in Waimanalo soil.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- calcium treatmente0
- Outcome
- potassium uptakee0
- Setting
- Waimanalo soile0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the Waimanalo soil, the calcium treatment significantly affected the potassium uptake.”
e1“uptake of the peanut plant”
The same questions in other papers
calcium atom · yield · Arachis hypogaea (peanut)Results differ
5 papers in the same direction as this paper · 68 in the opposite direction
- positive
- positive
- positive
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See all 74 papers →potassium · yield · Arachis hypogaea (peanut)Results differ
78 papers in the same direction as this paper · 15 in the opposite direction
- no effect
- negative
- negative
90 papers more in this group
See all 94 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.