Abstract
Acid and moderately acid soils (pH 5-6) are widespread in the farmed areas of New Zealand. Application of limestone to raise soil pH has been a common practice and re-acidification of soils requires that this be done regularly. The impact of liming and re-acidification cycles on soil chemistry is discussed and examples presented using a Southland soil: Waimumu silt loam. Wide ratios of Ca:Mg develop in the soil and further lime application is shown to damage growth of white clover but not Grasslands Tama ryegrass. Differences in surface chemistry of roots of legumes and grasses are discussed and the implications of the interactions between changes in soil chemistry and plant roots considered. Keywords acidification, calcium, magnesium, cation ratio, root CEC
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Claims 2
Claim · model-written summary
Further lime application damaged growth of white clover.
- Taxon
- white clover
Trifolium repense0 - Treatment
- further lime applicatione0
- Outcome
- growth of white clovere0
- Direction
- damagee0
- Setting
- Southlande1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wide ratios of Ca:Mg develop in the soil and further lime application is shown to damage growth of white clover but not Grasslands Tama ryegrass.”
e1“Southland soil: Waimumu silt loam”
Claim · model-written summary
Further lime application did not damage growth of Grasslands Tama ryegrass.
- Taxon
- Grasslands Tama ryegrasse0
- Treatment
- further lime applicatione0
- Outcome
- growth of white clover but not Grasslands Tama ryegrasse0
- Direction
- note0
Not reportedComparator
Verbatim
e0“Wide ratios of Ca:Mg develop in the soil and further lime application is shown to damage growth of white clover but not Grasslands Tama ryegrass.”
The same questions in other papers
lime · growth · Trifolium repens (white clover)Results differ
3 papers in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
10 papers more in this group
See all 14 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.