Abstract
A glasshouse trial, in which maize ( Zea mays L. cv. Pioneer 3270) was grown in 35 north-eastern Australian soils of low magnesium (Mg) status, was undertaken to study the response to applied Mg. Of the soils studied, 20 were strongly acidic (pH1:5 soil : water <5·4), and in these soils the response to Mg was studied in both the presence and absence of lime. Magnesium application significantly ( P < 0·05) increased dry matter yield in 10 soils, all of which were strongly acidic. However, significant Mg responses were recorded in 6 soils in the presence of lime, indicating that, in many situations, liming strategies may need to include consideration of Mg nutrition. Critical soil test values for 90% relative yield were 0·21 cmol(+)/kg of exchangeable Mg or 7% Mg saturation, whilst the critical (90% yield) plant tissue Mg concentration (whole shoots) was 0·15%.
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Claims 6
Claim · model-written summary
Magnesium application significantly increased maize dry matter yield in 10 soils, all strongly acidic.
- Material
- Pioneer 3270e0
- Treatment
- Magnesium applicatione1
- Outcome
- dry matter yielde1
- Direction
- increasede1
- Qualifier
- all of which were strongly acidice1
- Setting
- glasshousee0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A glasshouse trial, in which maize ( Zea mays L. cv. Pioneer 3270) was grown in 35 north-eastern Australian soils of low magnesium (Mg) status”
e1“Magnesium application significantly ( P < 0·05) increased dry matter yield in 10 soils, all of which were strongly acidic”
Claim · model-written summary
Significant Mg responses of maize were recorded in 6 soils in the presence of lime.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A glasshouse trial, in which maize ( Zea mays L. cv. Pioneer 3270) was grown in 35 north-eastern Australian soils of low magnesium (Mg) status”
e2“significant Mg responses were recorded in 6 soils in the presence of lime”
Claim · model-written summary
Critical soil test value for 90% relative yield of maize was 0.21 cmol(+)/kg of exchangeable Mg.
- Outcome
- Critical soil test values for 90% relative yielde3
- Value
- 0·21 cmol(+)/kge3
- Qualifier
- exchangeable Mge3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A glasshouse trial, in which maize ( Zea mays L. cv. Pioneer 3270) was grown in 35 north-eastern Australian soils of low magnesium (Mg) status”
e3“Critical soil test values for 90% relative yield were 0·21 cmol(+)/kg of exchangeable Mg or 7% Mg saturation”
Claim · model-written summary
Critical soil test value for 90% relative yield of maize was 7% Mg saturation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A glasshouse trial, in which maize ( Zea mays L. cv. Pioneer 3270) was grown in 35 north-eastern Australian soils of low magnesium (Mg) status”
e3“Critical soil test values for 90% relative yield were 0·21 cmol(+)/kg of exchangeable Mg or 7% Mg saturation”
Claim · model-written summary
Critical plant tissue Mg concentration (whole shoots) for 90% relative yield of maize was 0.15%.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A glasshouse trial, in which maize ( Zea mays L. cv. Pioneer 3270) was grown in 35 north-eastern Australian soils of low magnesium (Mg) status”
e4“the critical (90% yield) plant tissue Mg concentration (whole shoots) was 0·15%”
Claim · model-written summary
Liming strategies may need to include consideration of Mg nutrition for maize on acidic soils (authors recommendation).
- Outcome
- liming strategies may need to include consideration of Mg nutritione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A glasshouse trial, in which maize ( Zea mays L. cv. Pioneer 3270) was grown in 35 north-eastern Australian soils of low magnesium (Mg) status”
e2“liming strategies may need to include consideration of Mg nutrition”
The same questions in other papers
magnesium atom · yield · Zea mays (maize)Results differ
35 papers in the same direction as this paper · 10 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- no effect
43 papers more in this group
See all 47 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.