Abstract
The nutrient requirements of wheat grown on a soil ameliorated with lime and deep ripping were studied in a field experiment over 5 seasons in northeastern Victoria. Phosphorus (P) fertiliser was required when this soil was limed, although the lime treatment may have increased P uptake (P x lime interaction). The nitrogen (N) concentration in wheat foliage was increased with both lime and deep ripping. It is likely that the availability of N will be the most important factor for sustaining high yields following soil treatment. Molybdenum (Mo) fertiliser (62 g Mo ha-1) increased grain yield in 2 seasons. Molybdenum fertiliser increased grain weight by an average of 4.4% over 3 years, and also the N content of grain in the absence of lime, indicating that a deficiency of available Mo in the soil was affecting the assimilation of N in the wheat. The magnesium (Mg) concentration in the wheat foliage was very low (0.07-0.10%) without soil treatment, but there was no grain yield response when Mg fertiliser (10.5 kg Mg ha-1) was applied in the absence of lime. Lime and ripping both resulted in big increases in manganese (Mn) concentrations in the foliage. Calcium (Ca) and copper (Cu) concentrations were little affected and zinc (Zn) was not affected by lime (Ca, 0.35-0 55%; Cu, 7-20 ¦g g-1; Zn, 50-60 ¦g g-1 at 50 days after emergence), and each nutrient appeared to be adequate for wheat. The concentration of Mn in the foliage was high without lime, but did not approach published figures for critical toxicity concentrations. Liming the soil greatly reduced the manganese concentration.
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Claims 12
Claim · model-written summary
Phosphorus fertilizer was required on limed soil.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- limede0
- Outcome
- Phosphorus (P) fertiliser was requirede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus (P) fertiliser was required when this soil was limed”
t0“wheat grown”
Claim · model-written summary
Lime may have increased phosphorus uptake.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- lime treatmente0
- Outcome
- P uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lime treatment may have increased P uptake”
t0“wheat grown”
Claim · model-written summary
Lime and ripping each increased nitrogen concentration in wheat foliage.
- Taxon
- wheatTriticum aestivume0
- Treatment
- lime and deep rippinge0
- Outcome
- nitrogen (N) concentration in wheat foliagee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrogen (N) concentration in wheat foliage was increased with both lime and deep ripping”
Claim · model-written summary
Molybdenum fertilizer increased grain yield in two seasons.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Molybdenum (Mo) fertiliser (62 g Mo ha-1)e0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 2 seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Molybdenum (Mo) fertiliser (62 g Mo ha-1) increased grain yield in 2 seasons”
t0“wheat grown”
Claim · model-written summary
Molybdenum fertilizer raised grain weight by 4.4% over three years.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Molybdenum fertilisere0
- Outcome
- grain weighte0
- Direction
- increasede0
- Value
- 4.4%e0
- Qualifier
- over 3 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Molybdenum fertiliser increased grain weight by an average of 4.4% over 3 years”
t0“wheat grown”
Claim · model-written summary
Molybdenum fertilizer increased grain nitrogen content without lime.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- N content of graine0
- Direction
- increaseinferrede0
- Qualifier
- absence of limee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“also the N content of grain in the absence of lime”
t0“wheat grown”
Claim · model-written summary
Untreated wheat foliage had very low magnesium concentration.
- Taxon
- wheatTriticum aestivume0
- Outcome
- magnesium (Mg) concentration in the wheat foliagee0
- Value
- 0.07-0.10%e0
- Qualifier
- without soil treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The magnesium (Mg) concentration in the wheat foliage was very low (0.07-0.10%) without soil treatment”
Claim · model-written summary
Magnesium fertilizer did not affect grain yield without lime.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Mg fertiliser (10.5 kg Mg ha-1)e0
- Outcome
- grain yield responsee0
- Direction
- noe0
- Qualifier
- absence of limee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no grain yield response when Mg fertiliser (10.5 kg Mg ha-1) was applied in the absence of lime”
t0“wheat grown”
Claim · model-written summary
Lime and ripping both greatly increased foliage manganese.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Lime and rippinge0
- Outcome
- manganese (Mn) concentrations in the foliagee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lime and ripping both resulted in big increases in manganese (Mn) concentrations in the foliage”
t0“wheat grown”
Claim · model-written summary
Lime had little effect on calcium and copper and no effect on zinc concentrations.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- limee0
- Outcome
- Calcium (Ca) and copper (Cu) concentrationse0
- Direction
- little affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calcium (Ca) and copper (Cu) concentrations were little affected and zinc (Zn) was not affected by lime”
t0“wheat grown”
Claim · model-written summary
Foliage manganese was high without lime but below published critical toxicity levels.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- concentration of Mn in the foliagee0
- Qualifier
- without limee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of Mn in the foliage was high without lime, but did not approach published figures for critical toxicity concentrations”
t0“wheat grown”
Claim · model-written summary
Liming greatly reduced manganese concentration.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Liming the soile0
- Outcome
- manganese concentratione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Liming the soil greatly reduced the manganese concentration”
t0“wheat grown”
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