Abstract
The uptake of native phosphorus and band-applied fertilizer phosphorus was studied for wheat (Triticum vulgare L. Oxley) and rape (Brassica napus L. Dwarf Essex) at two water regimes in a pot experiment. Soils were cracking clays known to differ in phosphorus availability. Both crops responded to fertilizer on Cecilvale (low available phosphorus), but not on Waco soil (high available phosphorus), and wheat also responded on Mywybilla soil (intermediate phosphorus). Fertilizer uptake was in the order: Cecilvale > Mywybilla > Waco for wheat and Cecilvale > Waco for rape. Crops recovered generally twice as much native phosphorus from each soil with the wet than with the dry regime. There was no effect of water regime on uptake of fertilizer phosphorus by wheat on any soil. Water regime did not increase fertilizer uptake by rape from Waco soil, although it did increase uptake on Cecilvale soil. Favourable fertilizer response under arid conditions appears to be due to a reduction in accessibility of native soil phosphorus due to the stunted root system, but no reduction in the availability of fertilizer phosphorus.
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Claims 9
Claim · model-written summary
Wheat responded to fertilizer on Cecilvale and Mywybilla soils but not Waco soil.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- fertilizere0
- Outcome
- respondede0
- Direction
- respondede0
- Setting
- Cecilvalee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both crops responded to fertilizer on Cecilvale (low available phosphorus), but not on Waco soil (high available phosphorus), and wheat also responded on Mywybilla soil (intermediate phosphorus).”
Claim · model-written summary
Rape responded to fertilizer on Cecilvale soil but not Waco soil.
- Taxon
- rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- fertilizere0
- Outcome
- respondede0
- Direction
- respondede0
- Setting
- Cecilvalee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Both crops responded to fertilizer on Cecilvale (low available phosphorus), but not on Waco soil (high available phosphorus)”
t0“rape”
Claim · model-written summary
Wheat fertilizer phosphorus uptake ranked Cecilvale above Mywybilla above Waco.
- Taxon
- wheatTriticum aestivume0
- Outcome
- Fertilizer uptakee0
- Qualifier
- Cecilvale > Mywybilla > Wacoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer uptake was in the order: Cecilvale > Mywybilla > Waco for wheat”
Claim · model-written summary
Rape fertilizer phosphorus uptake ranked Cecilvale above Waco.
- Taxon
- rapeBrassica napuse0
- Outcome
- Cecilvale > Wacoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cecilvale > Waco for rape”
Claim · model-written summary
Wet-regime crops recovered generally twice as much native soil phosphorus as dry-regime crops.
Verbatim
e0“Crops recovered generally twice as much native phosphorus from each soil with the wet than with the dry regime.”
Claim · model-written summary
Water regime had no effect on wheat fertilizer phosphorus uptake on any soil.
- Taxon
- wheatTriticum aestivume0
- Treatment
- water regimee0
- Outcome
- uptake of fertilizer phosphoruse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no effect of water regime on uptake of fertilizer phosphorus by wheat on any soil.”
Claim · model-written summary
Water regime did not increase rape fertilizer phosphorus uptake on Waco soil.
- Taxon
- rapeBrassica napuse0
- Treatment
- Water regimee0
- Outcome
- fertilizer uptakee0
- Direction
- did not increasee0
- Setting
- Waco soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water regime did not increase fertilizer uptake by rape from Waco soil”
Claim · model-written summary
Water regime increased rape fertilizer phosphorus uptake on Cecilvale soil.
- Taxon
- rapeBrassica napuse0
- Treatment
- Water regimee0
- Outcome
- uptakee0
- Direction
- increasee0
- Setting
- Cecilvale soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water regime did not increase fertilizer uptake by rape from Waco soil, although it did increase uptake on Cecilvale soil.”
Claim · model-written summary
The favorable fertilizer response under arid conditions appears linked to reduced access to native soil phosphorus from stunted roots, without reduced fertilizer phosphorus availability.
- Taxon
- wheat and rapeBrassica napusTriticum aestivumt0
- Outcome
- Favourable fertilizer responsee0
- Qualifier
- a reduction in accessibility of native soil phosphorus due to the stunted root systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Favourable fertilizer response under arid conditions appears to be due to a reduction in accessibility of native soil phosphorus due to the stunted root system, but no reduction in the availability of fertilizer phosphorus.”
t0“wheat and rape”
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See all 103 papers →irrigation · nutrient: content · Brassica napus (oilseed rape)Results agree
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- positive
- positive
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See all 5 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.