Effects of nitrogen, phosphorus and potassium levels on the growth of Neyraudia reynaudiana of soil and water conservation plant
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    Abstract:

    【Objective】To explore the effects of nitrogen, phosphorus and potassium levels on the growth of burmareed, Neyraudia reynaudiana .【Method】Nutrient solution-sand culture experiment was applied to study the response of burmareed which was a very excellent soil and water conservation plant at different nitrogen, phosphorus and potassium levels.【Result and conclusion】The results indicated that 0.750 mmol·L-1 N and 0.030 mmol·L-1 K significantly affected the burmareed growth and reduced the aboveground and underground biomass of burmareed. The concentration of 0.005 mmol·L-1 P did not affect the aboveground biomass, but significantly reduced the underground biomass. The effect of 0.750 mmol·L-1 N on the growth of burmareed was significantly stronger than that of 0.030 mmol·L-1 P and 0.030 mmol·L-1 K. In low P and K condition, burmareed could increase root length and surface area, which displayed its strong capacity of adapting and self-adjusting for low P and K stress. Supplement of nitrogen is very important for revegetation with burmareed.

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FENG Hong, DAI Jun, WU Jialong, GUO Yanbiao. Effects of nitrogen, phosphorus and potassium levels on the growth of Neyraudia reynaudiana of soil and water conservation plant[J]. Journal of South China Agricultural University,2015,36(2):31-35

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History
  • Received:March 25,2014
  • Revised:
  • Adopted:
  • Online: February 13,2015
  • Published: