Abstract
Eight varieties from four lupin species were grown on a virgin lateritic soil with six rates of superphosphate, ranging from 0 to 1,792 kg ha-1. Dry matter yield and phosphorus and nitrogen contents of the tops were measured at about full flowering, together with days to flowering, pods set per primary inflorescence, and phosphorus and nitrogen contents of the mature seeds. All species gave sigmoid yield responses, reaching 90 per cent of maximum yield at superphosphate rates between 600 and 900 kg ha-l, depending on species. Varieties within species responded uniformly. The order of tolerance to deficiency was L. cosentini > L. luteus > L. angustifolius = L. albus. Tolerance was based on uptake rather than differing tissue requirement. Phosphorus and nitrogen concentrations in the seeds varied markedly with species, the rankings being L. luteus > L. cosentini = L. albus > L. angustifolios for phosphorus, and L. luteus > L. albus > L. angustifolius > L. cosentini for nitrogen. Superphosphate application caused parallel changes in phosphorus concentrations in the tops and seeds of each species. It slightly increased nitrogen concentrations in the tops, but not in the seeds.
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Claims 9
Claim · model-written summary
All species had sigmoid yield responses, reaching 90 per cent of maximum yield at species-dependent superphosphate rates of 600 to 900 kg ha-l.
- Treatment
- superphosphate ratese0
- Outcome
- yield responsese0
- Direction
- sigmoide0
- Value
- 90 per cente0
- Qualifier
- between 600 and 900 kg ha-le0
LupinusNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All species gave sigmoid yield responses, reaching 90 per cent of maximum yield at superphosphate rates between 600 and 900 kg ha-l, depending on species.”
e1“Eight varieties from four lupin species were grown on a virgin lateritic soil with six rates of superphosphate, ranging from 0 to 1,792 kg ha-1. Dry matter yield and phosphorus and nitrogen contents of the tops were measured at about full flowering, together with days to flowering, pods set per primary inflorescence, and phosphorus and nitrogen contents of the mature seeds.”
t0“Differences among Lupinus species in field response to superphosphate”
Claim · model-written summary
Varieties within each species responded uniformly.
- Outcome
- responded uniformlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Varieties within species responded uniformly.”
e1“Eight varieties from four lupin species were grown on a virgin lateritic soil with six rates of superphosphate, ranging from 0 to 1,792 kg ha-1. Dry matter yield and phosphorus and nitrogen contents of the tops were measured at about full flowering, together with days to flowering, pods set per primary inflorescence, and phosphorus and nitrogen contents of the mature seeds.”
t0“Differences among Lupinus species in field response to superphosphate”
Claim · model-written summary
Tolerance to deficiency ranked L. cosentini above L. luteus, then L. angustifolius and L. albus equally.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The order of tolerance to deficiency was L. cosentini > L. luteus > L. angustifolius = L. albus.”
e1“Eight varieties from four lupin species were grown on a virgin lateritic soil with six rates of superphosphate, ranging from 0 to 1,792 kg ha-1. Dry matter yield and phosphorus and nitrogen contents of the tops were measured at about full flowering, together with days to flowering, pods set per primary inflorescence, and phosphorus and nitrogen contents of the mature seeds.”
t0“Differences among Lupinus species in field response to superphosphate”
Claim · model-written summary
Deficiency tolerance was attributed to uptake rather than differing tissue requirement.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tolerance was based on uptake rather than differing tissue requirement.”
e1“Eight varieties from four lupin species were grown on a virgin lateritic soil with six rates of superphosphate, ranging from 0 to 1,792 kg ha-1. Dry matter yield and phosphorus and nitrogen contents of the tops were measured at about full flowering, together with days to flowering, pods set per primary inflorescence, and phosphorus and nitrogen contents of the mature seeds.”
t0“Differences among Lupinus species in field response to superphosphate”
Claim · model-written summary
Seed phosphorus concentration ranked highest in L. luteus, then L. cosentini and L. albus equally, then L. angustifolios.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rankings being L. luteus > L. cosentini = L. albus > L. angustifolios for phosphorus”
e1“Eight varieties from four lupin species were grown on a virgin lateritic soil with six rates of superphosphate, ranging from 0 to 1,792 kg ha-1. Dry matter yield and phosphorus and nitrogen contents of the tops were measured at about full flowering, together with days to flowering, pods set per primary inflorescence, and phosphorus and nitrogen contents of the mature seeds.”
t0“Differences among Lupinus species in field response to superphosphate”
Claim · model-written summary
Seed nitrogen concentration ranked L. luteus highest, followed by L. albus, L. angustifolius and L. cosentini.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L. luteus > L. albus > L. angustifolius > L. cosentini for nitrogen”
e1“Eight varieties from four lupin species were grown on a virgin lateritic soil with six rates of superphosphate, ranging from 0 to 1,792 kg ha-1. Dry matter yield and phosphorus and nitrogen contents of the tops were measured at about full flowering, together with days to flowering, pods set per primary inflorescence, and phosphorus and nitrogen contents of the mature seeds.”
t0“Differences among Lupinus species in field response to superphosphate”
Claim · model-written summary
Superphosphate caused parallel phosphorus concentration changes in tops and seeds.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Superphosphate application caused parallel changes in phosphorus concentrations in the tops and seeds of each species.”
e1“Eight varieties from four lupin species were grown on a virgin lateritic soil with six rates of superphosphate, ranging from 0 to 1,792 kg ha-1. Dry matter yield and phosphorus and nitrogen contents of the tops were measured at about full flowering, together with days to flowering, pods set per primary inflorescence, and phosphorus and nitrogen contents of the mature seeds.”
t0“Differences among Lupinus species in field response to superphosphate”
Claim · model-written summary
Superphosphate slightly increased nitrogen concentrations in tops.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It slightly increased nitrogen concentrations in the tops, but not in the seeds.”
e1“Eight varieties from four lupin species were grown on a virgin lateritic soil with six rates of superphosphate, ranging from 0 to 1,792 kg ha-1. Dry matter yield and phosphorus and nitrogen contents of the tops were measured at about full flowering, together with days to flowering, pods set per primary inflorescence, and phosphorus and nitrogen contents of the mature seeds.”
t0“Differences among Lupinus species in field response to superphosphate”
Claim · model-written summary
Superphosphate did not increase nitrogen concentrations in seeds.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It slightly increased nitrogen concentrations in the tops, but not in the seeds.”
e1“Eight varieties from four lupin species were grown on a virgin lateritic soil with six rates of superphosphate, ranging from 0 to 1,792 kg ha-1. Dry matter yield and phosphorus and nitrogen contents of the tops were measured at about full flowering, together with days to flowering, pods set per primary inflorescence, and phosphorus and nitrogen contents of the mature seeds.”
t0“Differences among Lupinus species in field response to superphosphate”
The same questions in other papers
phosphorus · nutrient: content · LupinusPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
phosphorus · yield · LupinusPositive and negative results
7 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- no effect
6 papers more in this group
See all 10 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.