Abstract
Using an acid sand with differing proportions of added ground limestone, a range of soil pH levels was achieved from 5.4 to 9.2. Four winter grain legumes (field peas, faba beans, lupins and chickpeas) were grown for 8 weeks before being sampled for nodulation, dry matter and nitrogen production. Chickpeas appeared the least affected by the range of soil pH values and calcium levels in terms of root and shoot growth; all the legumes produced the greatest number of root nodules at pH 7 or 8. Top dry weight production in lupins was maximized at pH 6, and declined rapidly above pH 7; field peas, chickpeas and faba beans all showed maximum above-ground dry weights between pH 7 and 8.
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Claims 5
Claim · model-written summary
Chickpeas were the least affected by soil pH and calcium in root and shoot growth.
- Taxon
- Chickpeas
Cicer arietinume1 - Treatment
- soil pH values and calcium levelse1
- Outcome
- root and shoot growthe1
- Direction
- least affectede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Chickpeas appeared the least affected by the range of soil pH values and calcium levels in terms of root and shoot growth”
Claim · model-written summary
All legumes produced the greatest number of root nodules at pH 7 or 8.
Verbatim
e2“all the legumes produced the greatest number of root nodules at pH 7 or 8”
Claim · model-written summary
Top dry weight in lupins was maximized at pH 6.
LupinusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Top dry weight production in lupins was maximized at pH 6, and declined rapidly above pH 7”
Claim · model-written summary
Top dry weight in lupins declined rapidly above pH 7.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Top dry weight production in lupins was maximized at pH 6, and declined rapidly above pH 7”
Claim · model-written summary
Field peas, chickpeas and faba beans had maximum above-ground dry weights between pH 7 and 8.
Verbatim
e4“field peas, chickpeas and faba beans all showed maximum above-ground dry weights between pH 7 and 8”