Abstract
It is important to apply phosphorus (P) to the soil at the beginning of the crop growth cycle to provide essential P for early growth and to replace P exported in previous crops. With low rates of P added at sowing there may be sufficient P supply to grow crops to tillering, but in seasons of increased yield potential a top-up application of P may be required. Foliar P can be applied directly to the plant when required and in some cases have been shown to provide benefits for increasing P-use efficiency and the P concentration in grain. Wheat (Triticuum aestivum cv. Frame) was grown in two soils of marginal P status with soil moisture maintained at 80% of field capacity. Seven foliar P treatments labelled with 33P as a tracer were applied at Zadoks growth stage 39, at 1.65 kg P/ha with 120 L water/ha equivalent. Grain, chaff and shoots were harvested to measure yield and then digested to measure P concentrations and 33P activities. There was no crop response to top-up soil or foliar P on one soil, but on the other soil, foliar phosphoric acid plus adjuvant gave a 25% wheat grain yield response. The use of the tracing technique enabled measurement of the portioning of foliar P fertiliser between stem, chaff and grain. The most responsive treatment had the greatest amount of grain P uptake and the greatest partitioning of the foliar P fertiliser to grain.
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Claims 6
Claim · model-written summary
Wheat had no crop response to top-up soil on one soil.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- top-up soile0
- Outcome
- crop responsee0
- Direction
- no crop responsee0
- Setting
- one soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no crop response to top-up soil or foliar P on one soil, but on the other soil, foliar phosphoric acid plus adjuvant gave a 25% wheat grain yield response.”
t0“Wheat”
Claim · model-written summary
Wheat had no crop response to foliar P on one soil.
- Taxon
- wheatTriticum aestivume0
- Treatment
- foliar Pe0
- Outcome
- crop responsee0
- Direction
- no crop responsee0
- Setting
- one soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no crop response to top-up soil or foliar P on one soil, but on the other soil, foliar phosphoric acid plus adjuvant gave a 25% wheat grain yield response.”
t0“Wheat”
Claim · model-written summary
Foliar phosphoric acid plus adjuvant increased wheat grain yield by 25% on the other soil.
- Taxon
- wheatTriticum aestivume0
- Treatment
- foliar phosphoric acid plus adjuvante0
- Outcome
- wheat grain yielde0
- Direction
- responsee0
- Value
- 25%e0
- Setting
- other soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no crop response to top-up soil or foliar P on one soil, but on the other soil, foliar phosphoric acid plus adjuvant gave a 25% wheat grain yield response.”
Claim · model-written summary
The tracer technique measured distribution of foliar phosphorus among stem, chaff and grain.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- portioning of foliar P fertiliser between stem, chaff and graine0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of the tracing technique enabled measurement of the portioning of foliar P fertiliser between stem, chaff and grain.”
t0“Wheat”
Claim · model-written summary
The most responsive treatment had the greatest grain P uptake.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- most responsive treatmente0
- Outcome
- grain P uptakee0
- Direction
- greateste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most responsive treatment had the greatest amount of grain P uptake and the greatest partitioning of the foliar P fertiliser to grain.”
t0“Wheat”
Claim · model-written summary
The most responsive treatment had the greatest partitioning of the foliar P fertiliser to grain.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- most responsive treatmente0
- Outcome
- partitioning of the foliar P fertiliser to graine0
- Direction
- greateste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most responsive treatment had the greatest amount of grain P uptake and the greatest partitioning of the foliar P fertiliser to grain.”
t0“Wheat”
The same questions in other papers
adjuvant · yield · Triticum aestivum (wheat)Positive and negative results
10 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- negative
10 papers more in this group
See all 14 papers →phosphoric acid · yield · Triticum aestivum (wheat)Results agree
2 papers in the same direction as this paper
- positive
- positive
application · yield · Triticum aestivum (wheat)Positive and negative results
794 papers in the same direction as this paper · 75 in the opposite direction · 7 reporting no difference from an alternative
- no effect
- positive
- positive
873 papers more in this group
See all 877 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.