Abstract
Abstract The responses in dry matter (DM) production and changes in nutrient concentration in the shoots of white clover (cv. New Zealand Grasslands Huia) to additions of lime, N, P, K and Mg were investigated in pot and field experiments in a deep peat soil and to additions of N, P, K in two other hill soils in pot experiments. DM production and nutrient concentrations were assessed also for perennial ryegrass in the field experiment. There was no response by white clover to N, but in all soils, and in particular a deep peat, production of shoot DM was increased greatly by lime, P and K, and slightly by Mg. Interactions between lime and P and between P and K were observed. Critical concentrations of nutrients (g kg −1 ) for white clover appeared to be about 2.0 for P, 10·15 for K and 20 for Ca. Herbage production and nutrient contents of ryegrass and white clover grown on a deep peat in the field suggests that critical concentrations may possibly help to diagnose the need fur maintenance fertilizer dressings.
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Claims 11
Claim · model-written summary
White clover did not respond to N addition.
- Taxon
- white clover
Trifolium repense0 - Treatment
- Ne0
- Outcome
- responsee0
- Direction
- no responsee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“There was no response by white clover to N”
Claim · model-written summary
Lime greatly increased white clover shoot dry matter production.
- Taxon
- white cloverTrifolium repenst0
- Treatment
- limee0
- Outcome
- production of shoot DMe0
- Direction
- increased greatlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“production of shoot DM was increased greatly by lime, P and K, and slightly by Mg”
Claim · model-written summary
P greatly increased white clover shoot dry matter production.
- Taxon
- white cloverTrifolium repenst0
- Treatment
- Pe0
- Outcome
- production of shoot DMe0
- Direction
- increased greatlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“production of shoot DM was increased greatly by lime, P and K, and slightly by Mg”
Claim · model-written summary
K greatly increased white clover shoot dry matter production.
- Taxon
- white cloverTrifolium repenst0
- Treatment
- Ke0
- Outcome
- production of shoot DMe0
- Direction
- increased greatlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“production of shoot DM was increased greatly by lime, P and K, and slightly by Mg”
Claim · model-written summary
Mg slightly increased white clover shoot dry matter production.
- Taxon
- white cloverTrifolium repenst0
- Treatment
- Mge0
- Outcome
- production of shoot DMe0
- Direction
- slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“production of shoot DM was increased greatly by lime, P and K, and slightly by Mg”
Claim · model-written summary
Lime and P interacted in their effects on clover.
- Taxon
- white cloverTrifolium repenst0
- Treatment
- lime and Pe0
- Outcome
- Interactions between lime and Pe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“Interactions between lime and P and between P and K were observed.”
Claim · model-written summary
P and K interacted in their effects on clover.
- Taxon
- white cloverTrifolium repenst0
- Treatment
- P and Ke0
- Outcome
- between P and Ke0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“Interactions between lime and P and between P and K were observed.”
Claim · model-written summary
The estimated critical P concentration in white clover was about 2.0 g kg−1.
- Taxon
- white cloverTrifolium repense0
- Outcome
- Critical concentrations of nutrientse0
- Value
- 2.0e0
- Qualifier
- Pe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“Critical concentrations of nutrients (g kg −1 ) for white clover appeared to be about 2.0 for P, 10·15 for K and 20 for Ca.”
Claim · model-written summary
The estimated critical K concentration in white clover was about 10·15 g kg−1.
- Taxon
- white cloverTrifolium repense0
- Outcome
- Critical concentrations of nutrientse0
- Value
- 10·15e0
- Qualifier
- Ke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“Critical concentrations of nutrients (g kg −1 ) for white clover appeared to be about 2.0 for P, 10·15 for K and 20 for Ca.”
Claim · model-written summary
The estimated critical Ca concentration in white clover was about 20 g kg−1.
- Taxon
- white cloverTrifolium repense0
- Outcome
- Critical concentrations of nutrientse0
- Value
- 20e0
- Qualifier
- Cae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“Critical concentrations of nutrients (g kg −1 ) for white clover appeared to be about 2.0 for P, 10·15 for K and 20 for Ca.”
Claim · model-written summary
The authors suggest critical concentrations may help diagnose maintenance fertilizer needs.
- Taxon
- white cloverTrifolium repenst0
- Outcome
- diagnose the need fur maintenance fertilizer dressingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“white clover”
e0“critical concentrations may possibly help to diagnose the need fur maintenance fertilizer dressings”
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See all 25 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.