Text this: Interactive effects of NH<inf>4</inf><sup>+</sup>concentration and O<inf>2</inf>availability on growth, morphology, and mineral allocation of hybrid Napier grass (Pennisetum purpureum × P. americanum cv. Pakchong1)

__    __     ___     __   _     _____     ______  
\ \\ / //   / _ \\  | || | ||  |  ___||  /_   _// 
 \ \/ //   / //\ \\ | '--' ||  | ||__    `-| |,-  
  \  //   |  ___  ||| .--. ||  | ||__      | ||   
   \//    |_||  |_|||_|| |_||  |_____||    |_||   
    `     `-`   `-` `-`  `-`   `-----`     `-`'