Growth Traits of <i>Mytilaria laosensis</i> Container Seedlings Improved by Formula Fertilization
Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (2): 230-236.DOI: 10.3969/j.issn.1000-2561.2020.02.004

• Crop Culture and Nutrition, Genetic Breeding • Previous Articles     Next Articles

Growth Traits of Mytilaria laosensis Container Seedlings Improved by Formula Fertilization

LI Shaowei1,2,YIN Guangtian1,*(),YANG Jinchang1,LI Rongsheng1,ZOU Wentao1,YU Niu1,WANG Zhihai1   

  1. 1. Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, Guangdong 510520, China
    2. Lingnan Integrated Exploration and Design Institute of Guangdong Province, Guangzhou, Guangdong 510663, China
  • Received:2019-04-03 Revised:2019-06-10 Online:2020-02-25 Published:2020-03-21
  • Contact: YIN Guangtian

Abstract:

In order to screen out the optimal fertilizer combination of nitrogen, phosphorus and potassium for Mytilaria laosensis container seedling, an orthogonal experiment design with five factors and four levels was established on height, ground diameter, biomass and nutrient utilization. Different fertilizer combination had significant effects on the height, ground diameter, total biomass of container seedlings, indicating the promoting effects of fertilization formula on the growth of container seedlings. The effects of N, P, K on the height of container seedlings were N>P>K with the optimal combination of N1P3K2 (50 mg N+50 mg P+60 mg K per plant) while the effects of those on the ground diameter growth and biomass accumulation were N>K>P, and the best combination for the ground diameter growth and biomass accumulation was N1P4K2 (50 mg N+60 mg P+60 mg K per plant) and N1P4K1 (50 mg N+60 mg P+45 mg K per plant) correspondingly. Rational formula fertilization effectively improved the efficiency of nutrient exploitation of the seedlings. Conclusively, the optimal fertilizer formula for the seedlings growth of M. laosensis was N1P4K1 (50 mg N+60 mg P+45 mg K per plant) based on the comprehensive growth indices.

Key words: Mytilaria laosensis, container seedling, orthogonal experiment design, formula fertilization, growth indices

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