Abstract
Effects of calcium magnesium phosphate and silicon fertilizer (Na 2SiO 3) on the growth and the uptake of Cd, Pb, Zn, Cu, Mn, Fe, N, P and K by pakchoi (Brassica chinensis) were studied through pot experiment with cadmium, lead, and zinc contaminated soil. The growth of pakchoi was significantly improved by applying calcium magnesium phosphate. The uptake of Cd, Pb and Zn in pakchoi was significantly depressed and the poisonous symptom caused by heavy metals was eliminated. The absorption of Cu, N, P and Mn was also inhibited. Comparatively, Na 2SiO 3 showed a weaker effect on the growth of the vegetable and the uptake of the above elements. The results showed that soil pH was the main factor controlling the uptake of heavy metals by pakchoi.
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Claims 6
Claim · model-written summary
Calcium magnesium phosphate significantly improved pakchoi growth.
Not reportedComparator
Verbatim
e0“The growth of pakchoi was significantly improved by applying calcium magnesium phosphate.”
Claim · model-written summary
The treatment significantly depressed pakchoi Cd, Pb and Zn uptake.
- Taxon
- pakchoie0
- Treatment
- calcium magnesium phosphatee1
- Outcome
- uptake of Cd, Pb and Zne0
- Direction
- depressede0
Not reportedComparator
Verbatim
e0“The uptake of Cd, Pb and Zn in pakchoi was significantly depressed and the poisonous symptom caused by heavy metals was eliminated.”
e1“applying calcium magnesium phosphate”
Claim · model-written summary
Heavy metal toxicity symptoms in pakchoi were eliminated.
- Taxon
- pakchoit0
- Treatment
- calcium magnesium phosphatee1
- Outcome
- poisonous symptom caused by heavy metalse0
- Direction
- eliminatede0
Not reportedComparator
Verbatim
e0“the poisonous symptom caused by heavy metals was eliminated”
e1“applying calcium magnesium phosphate”
t0“pakchoi”
Claim · model-written summary
The treatment inhibited Cu, N, P and Mn absorption.
- Taxon
- pakchoit0
- Treatment
- calcium magnesium phosphatee1
- Outcome
- absorption of Cu, N, P and Mne0
- Direction
- inhibitede0
Not reportedComparator
Verbatim
e0“The absorption of Cu, N, P and Mn was also inhibited.”
e1“applying calcium magnesium phosphate”
t0“pakchoi”
Claim · model-written summary
Na 2SiO 3 had a weaker effect on vegetable growth and element uptake.
- Taxon
- pakchoit0
- Treatment
- Na 2SiO 3e0
- Outcome
- growth of the vegetable and the uptake of the above elementse0
- Direction
- weakere0
Not reportedComparator
Verbatim
e0“Na 2SiO 3 showed a weaker effect on the growth of the vegetable and the uptake of the above elements.”
t0“pakchoi”
Claim · model-written summary
Soil pH was identified as the main factor controlling heavy metal uptake by pakchoi.
Verbatim
e0“soil pH was the main factor controlling the uptake of heavy metals by pakchoi”
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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.