EFFECTS OF SHORT-TERM NITROGEN AND PHOSPHORUS ADDITION ON ROOT BIOMASS AND MORPHOLOGICAL CHARACTERISTICS OF LIGUSTRUM LUCIDUM AIT IN NEW RECLAMATION COASTAL FIELD

Root system plays an important role in plant’s nutrient acquisition and ecosystem carbon cycle. Nitrogen (N) and phosphorus (P) work significantly in promoting root system growth. To reveal the influence of N and P application on landscaping plants’ root morphology characteristics, Ingrowth soil core fertilization method was applied in the coastal reclaimed soil (196.25 cm) where Ligustrum lucidum ait grew from June to August in 2018. We set 11 processing gradients, including 0, 1, 3, 5, 7, 9, 11, 13, 15, 17, 20 g, and explored the influence of different N and P addition types on Ligustrum lucidum ait root morphology, biomass and other indicators. The results showed that compared with the control group, 3 g N application increased length of root by 62.39%, surface area by 120.87%, volume by 169.97%, biomass by 102.75%, root length density by 59.19% and root surface area density by 106.99%. 3 g P application increased those indexes by 77.37%, 111.15%, 147.50%, 98.05%, 73.87%, and 97.88%. The study indicated that compared with the control group, the application of 3 g N and P into 196.25 cm soil made significant differences on total length, diameter, surface area, volume, biomass, root length density, and root surface area density (P < 0.05).

• Publication year

  2019

• Venue

  Applied Ecology and Environmental Research

• Publication date

  Unknown publication date

• Fields of study

  Agricultural and Food Sciences, Biology, Environmental Science

• Identifiers
  DOI 10.15666/aeer/1703_56495662
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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