Abstract
Bulk soil samples from a long term (45 years) experiment were collected with three treatments (100% N, 50% NPK and 100% NPK) to represent different soil fertility levels for green house study using maize as test crop. To each soil, combinations of 4 levels of P (0, 30, 60 and 120 mg P kg-1) and Zn (0, 6.25, 12.5, 25 mg Zn kg-1) were applied in pots containing 4 kg soil. The effects of different levels of P and Zn were examined on dry matter yield, P and Zn concentrations and their uptake at 45 days after sowing. Soil collected from 100% N plots had the highest dry matter yield and P concentration but the lowest Zn concentration in maize plants. Soil from 100% NPK plots had the highest Zn concentration but lowest dry matter yield. Phosphorus application increased dry matter yield, whereas Zn had minimal effect on dry matter yield. Significant effect of P on Zn concentration was observed, whereas Zn had no effect on P concentration in maize plants.
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Claims 9
Claim · model-written summary
Soil from 100% N plots produced the highest maize dry matter yield.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil collected from 100% N plots had the highest dry matter yield and P concentration but the lowest Zn concentration in maize plants”
Claim · model-written summary
Soil from 100% N plots produced the highest maize P concentration.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil collected from 100% N plots had the highest dry matter yield and P concentration but the lowest Zn concentration in maize plants”
Claim · model-written summary
Soil from 100% N plots produced the lowest maize Zn concentration.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil collected from 100% N plots had the highest dry matter yield and P concentration but the lowest Zn concentration in maize plants”
Claim · model-written summary
Soil from 100% NPK plots gave the highest maize Zn concentration.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil from 100% NPK plots had the highest Zn concentration but lowest dry matter yield”
t0“maize”
Claim · model-written summary
Soil from 100% NPK plots gave the lowest maize dry matter yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil from 100% NPK plots had the highest Zn concentration but lowest dry matter yield”
t0“maize”
Claim · model-written summary
Phosphorus application increased dry matter yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application increased dry matter yield”
t0“maize”
Claim · model-written summary
Zinc application had minimal effect on dry matter yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn had minimal effect on dry matter yield”
t0“maize”
Claim · model-written summary
Phosphorus significantly affected maize Zn concentration.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant effect of P on Zn concentration was observed”
t0“maize”
Claim · model-written summary
Zinc had no effect on maize P concentration.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn had no effect on P concentration in maize plants”
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