Kankunlanach Khampuang และ Sithisavet Lordkaew and Chanakan Thebault Prom-u-thai. (2021) Effect of zinc fertilizer management on seedling growth of Chai Nat 1 and Kum Doi Saket rice varieties grown in rice husk ash medium. <i>Khon Kaen Agriculture Journal</i>, <i>49</i>(4), 810-817.Kankunlanach Khampuang และ Sithisavet Lordkaew and Chanakan Thebault Prom-u-thai. "Effect of zinc fertilizer management on seedling growth of Chai Nat 1 and Kum Doi Saket rice varieties grown in rice husk ash medium". Khon Kaen Agriculture Journal 49 (2021):810-817.Kankunlanach Khampuang และ Sithisavet Lordkaew and Chanakan Thebault Prom-u-thai. Effect of zinc fertilizer management on seedling growth of Chai Nat 1 and Kum Doi Saket rice varieties grown in rice husk ash medium. Faculty of Agriculture:ม.ป.ท. 2021.