Abstract
Industrial hemp (Cannabis sativa L.) is a fibrous plant with high biomass production, and can survive under heavy metal stress conditions. To determine the growth potential of industrial hemp on lead (Pb) contaminated soil, a pot experiment was conducted using two varieties Bamahuoma (BM) and Yunma-1 (Y1), under different levels of nitrogen (N) fertilizer viz., 0 (control), 0.1, 0.3, 0.5 and 0.7 g kg−1. The soil was artificially spiked with Pb using PbCl. Lead uptake and its accumulation in different organs of both hemp varieties were analyzed. Increasing level of N fertilizer caused a significant increase in the plant growth and dry biomass production in both varieties, while Y1 showed more tolerance to Pb, than BM. Furthermore, N (%) was higher in the leaves and stems then in the roots. Contrastingly, Pb was highly accumulated in the roots then in the leaves and stems of both varieties under varying levels of N fertilizer in the soil. Lead uptake and its accumulation in different plant parts were increased with the increase in N fertilizer in the soil. Hence, these findings indicate that external N fertilization is a useful strategy to enhance dry biomass and Pb accumulation in industrial hemp.
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Claims 6
Claim · model-written summary
Increasing nitrogen fertilizer significantly increased plant growth and dry biomass of industrial hemp in both varieties.
- Taxon
- Industrial hemp (Cannabis sativa L.)
Cannabis sativae0 - Treatment
- N fertilizere1
- Outcome
- plant growth and dry biomass productione1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Industrial hemp (Cannabis sativa L.) is a fibrous plant with high biomass production”
e1“Increasing level of N fertilizer caused a significant increase in the plant growth and dry biomass production in both varieties”
Claim · model-written summary
Yunma-1 showed more tolerance to lead than Bamahuoma.
- Taxon
- Industrial hemp (Cannabis sativa L.)Cannabis sativae0
- Material
- Y1e2
- Outcome
- tolerance to Pbe2
- Direction
- moree2
- Comparator
- BMe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Industrial hemp (Cannabis sativa L.) is a fibrous plant with high biomass production”
e2“Y1 showed more tolerance to Pb, than BM”
Claim · model-written summary
Nitrogen content of industrial hemp was higher in leaves and stems than in roots.
- Taxon
- Industrial hemp (Cannabis sativa L.)Cannabis sativae0
- Organ / stage
- leaves and stemse3
- Outcome
- N (%)e3
- Direction
- highere3
- Comparator
- rootse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Industrial hemp (Cannabis sativa L.) is a fibrous plant with high biomass production”
e3“N (%) was higher in the leaves and stems then in the roots”
Claim · model-written summary
Lead was highly accumulated in the roots of industrial hemp compared with leaves and stems.
- Taxon
- Industrial hemp (Cannabis sativa L.)Cannabis sativae0
- Organ / stage
- rootse4
- Outcome
- Pbe4
- Direction
- higherinferrede4
- Comparator
- leaves and stemse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Industrial hemp (Cannabis sativa L.) is a fibrous plant with high biomass production”
e4“Pb was highly accumulated in the roots then in the leaves and stems of both varieties”
Claim · model-written summary
Increasing nitrogen fertilizer in soil increased lead uptake and accumulation in different plant parts of industrial hemp.
- Taxon
- Industrial hemp (Cannabis sativa L.)Cannabis sativae0
- Treatment
- N fertilizer in the soile5
- Outcome
- Lead uptake and its accumulation in different plant partse5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Industrial hemp (Cannabis sativa L.) is a fibrous plant with high biomass production”
e5“Lead uptake and its accumulation in different plant parts were increased with the increase in N fertilizer in the soil”
Claim · model-written summary
External nitrogen fertilization is recommended as a useful strategy to enhance dry biomass and Pb accumulation in industrial hemp.
Verbatim
e6“external N fertilization is a useful strategy to enhance dry biomass and Pb accumulation in industrial hemp”
The same questions in other papers
fertilization · yield · Cannabis sativaPositive and negative results
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- positive
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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.