Abstract
SUMMARY A field experiment was made with sorghum hybrid CSH-1 during the rainy seasons of 1968 and 1969 on a sandy loam soil to study the influence of amounts and sources of phosphate fertilizer on phosphorus nutrition. Concentration of P in the crop and uptake increased with increasing amounts of phosphate and with increasing proportions of water-soluble P in triple superphosphate-dicalcium phosphate and triple superphosphate-rock phosphate mixtures. Relative effectiveness values were calculated from P uptake at harvest by a multiple regression method. For triple superphosphate, nitrophosphate (30% water soluble P), dicalcium phosphate and rock phosphate (from Jordan) the values were respectively, 100, 74, 61 and 22.
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Claims 5
Claim · model-written summary
Increasing amounts of phosphate fertilizer increased P concentration in sorghum.
- Material
- CSH-1e0
- Treatment
- increasing amounts of phosphatee1
- Outcome
- Concentration of P in the crope1
- Direction
- increasede1
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“phosphorus nutrition of sorghum”
e0“A field experiment was made with sorghum hybrid CSH-1 during the rainy seasons of 1968 and 1969 on a sandy loam soil”
e1“Concentration of P in the crop and uptake increased with increasing amounts of phosphate and with increasing proportions of water-soluble P in triple superphosphate-dicalcium phosphate and triple superphosphate-rock phosphate mixtures”
Claim · model-written summary
Increasing proportions of water-soluble P in the fertilizer increased P uptake in sorghum.
- Material
- CSH-1e0
- Treatment
- increasing proportions of water-soluble Pe1
- Outcome
- uptakee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“phosphorus nutrition of sorghum”
e0“A field experiment was made with sorghum hybrid CSH-1 during the rainy seasons of 1968 and 1969 on a sandy loam soil”
e1“Concentration of P in the crop and uptake increased with increasing amounts of phosphate and with increasing proportions of water-soluble P in triple superphosphate-dicalcium phosphate and triple superphosphate-rock phosphate mixtures”
Claim · model-written summary
Nitrophosphate (30% water soluble P) has a relative effectiveness of 74 compared with triple superphosphate in sorghum.
- Treatment
- nitrophosphate (30% water soluble P)e2
- Outcome
- Relative effectiveness valuese3
- Direction
- lowerinferrede2
- Value
- 74e2
- Qualifier
- calculated from P uptake at harvest by a multiple regression methode3
- Comparator
- triple superphosphatee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“phosphorus nutrition of sorghum”
e2“For triple superphosphate, nitrophosphate (30% water soluble P), dicalcium phosphate and rock phosphate (from Jordan) the values were respectively, 100, 74, 61 and 22”
e3“Relative effectiveness values were calculated from P uptake at harvest by a multiple regression method”
Claim · model-written summary
Dicalcium phosphate has a relative effectiveness of 61 compared with triple superphosphate in sorghum.
- Treatment
- dicalcium phosphatee2
- Outcome
- Relative effectiveness valuese3
- Direction
- lowerinferrede2
- Value
- 61e2
- Qualifier
- calculated from P uptake at harvest by a multiple regression methode3
- Comparator
- triple superphosphatee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“phosphorus nutrition of sorghum”
e2“For triple superphosphate, nitrophosphate (30% water soluble P), dicalcium phosphate and rock phosphate (from Jordan) the values were respectively, 100, 74, 61 and 22”
e3“Relative effectiveness values were calculated from P uptake at harvest by a multiple regression method”
Claim · model-written summary
Rock phosphate (from Jordan) has a relative effectiveness of 22 compared with triple superphosphate in sorghum.
- Treatment
- rock phosphatee2
- Outcome
- Relative effectiveness valuese3
- Direction
- lowerinferrede2
- Value
- 22e2
- Qualifier
- calculated from P uptake at harvest by a multiple regression methode3
- Comparator
- triple superphosphatee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“phosphorus nutrition of sorghum”
e2“For triple superphosphate, nitrophosphate (30% water soluble P), dicalcium phosphate and rock phosphate (from Jordan) the values were respectively, 100, 74, 61 and 22”
e3“Relative effectiveness values were calculated from P uptake at harvest by a multiple regression method”
The same questions in other papers
phosphorus · molecular: metabolites · SorghumPositive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
4 papers more in this group
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.