Abstract
A pot experiment was conducted to examine the effect of co-application of phosphorus (P) and/or potassium (K) fertilizer to a soil layer on Mung bean (Vigna radiata R. Wilczek) grown in a Yellow Chromosol soil. We hypothesized that adding K to a P- enriched soil layer would increase recovery of K due to increased root proliferation. Layers enriched with P, K or a combination of P and K were placed at either 5 or 20 cm depth in 50 cm deep pots, and a uniform PK application treatment included for comparison. Mung bean was grown for 45 days and key growth and nutrient uptake attributes were assessed. Phosphorus application increased shoot and root dry matter yield and shoot yield was 40% higher in the shallow P treatment and 77% higher in the shallow PK than in the uniform PK treatment. Shallow co-application of P and K increased shoot P and K content compared with shallow P alone. Apparent P fertilizer recovery (%PAFR) followed the same pattern, and there was an 8 to 12-fold increase in %KAFR. There was no evidence of an increase in either the proportion or mass density of roots in the enriched soil layers in any treatment. P and K fertilizer use efficiency was maximized by co-application in an enriched soil layer. When multiple nutrient deficiencies occur co-application of nutrients in a soil layer accessible to roots maximizes fertilizer use efficiency.
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Claims 9
Claim · model-written summary
Phosphorus application increased mung bean shoot and root dry matter yield.
- Taxon
- Mung Bean
.jpg?width=60)
Vigna radiatat0 - Treatment
- Phosphorus applicatione0
- Outcome
- shoot and root dry matter yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Phosphorus application increased shoot and root dry matter yield”
t0“Mung Bean”
Claim · model-written summary
Shallow P gave 40% higher shoot yield than uniform PK.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- shallow P treatmente0
- Outcome
- shoot yielde0
- Direction
- highere0
- Value
- 40%e0
- Comparator
- uniform PK treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot yield was 40% higher in the shallow P treatment and 77% higher in the shallow PK than in the uniform PK treatment”
t0“Mung Bean”
Claim · model-written summary
Shallow PK gave 77% higher shoot yield than uniform PK.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- shallow PKe0
- Outcome
- shoot yielde0
- Direction
- highere0
- Value
- 77%e0
- Comparator
- uniform PK treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot yield was 40% higher in the shallow P treatment and 77% higher in the shallow PK than in the uniform PK treatment”
t0“Mung Bean”
Claim · model-written summary
Shallow P and K co-application increased mung bean shoot P and K content relative to shallow P alone.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Shallow co-application of P and Ke0
- Outcome
- shoot P and K contente0
- Direction
- increasede0
- Comparator
- shallow P alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shallow co-application of P and K increased shoot P and K content compared with shallow P alone”
t0“Mung Bean”
Claim · model-written summary
Apparent P fertilizer recovery followed the pattern of shoot P and K content under shallow co-application.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Shallow co-application of P and Ke0
- Outcome
- Apparent P fertilizer recovery (%PAFR)e0
- Direction
- increasede0
- Comparator
- shallow P alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shallow co-application of P and K increased shoot P and K content compared with shallow P alone. Apparent P fertilizer recovery (%PAFR) followed the same pattern”
t0“Mung Bean”
Claim · model-written summary
Apparent K fertilizer recovery increased 8 to 12-fold.
- Taxon
- Mung BeanVigna radiatat0
- Outcome
- %KAFRe0
- Direction
- increasee0
- Value
- 8 to 12-folde0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was an 8 to 12-fold increase in %KAFR”
t0“Mung Bean”
Claim · model-written summary
Neither root proportion nor mass density increased in enriched soil layers under any treatment.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- enriched soil layerse0
- Outcome
- proportion or mass density of rootse0
- Direction
- no evidence of an increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no evidence of an increase in either the proportion or mass density of roots in the enriched soil layers in any treatment”
t0“Mung Bean”
Claim · model-written summary
Co-application in an enriched soil layer maximized P and K fertilizer use efficiency.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- co-application in an enriched soil layere0
- Outcome
- P and K fertilizer use efficiencye0
- Direction
- maximizede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P and K fertilizer use efficiency was maximized by co-application in an enriched soil layer”
t0“Mung Bean”
Claim · model-written summary
The authors recommend co-applying nutrients in a root-accessible soil layer when multiple deficiencies occur.
- Taxon
- Mung BeanVigna radiatat0
- Outcome
- co-application of nutrients in a soil layer accessible to rootse0
- Qualifier
- When multiple nutrient deficiencies occure0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When multiple nutrient deficiencies occur co-application of nutrients in a soil layer accessible to roots maximizes fertilizer use efficiency”
t0“Mung Bean”
The same questions in other papers
phosphorus · yield · Vigna radiata (mung bean)Results differ
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- positive
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See all 36 papers →potassium · nutrient: content · Vigna radiata (mung bean)Results agree
7 papers in the same direction as this paper
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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.