|Better Farming Series 21- Wet Paddy or Swamp Rice (FAO - INADES, 1977, 40 p.)|
|Taking care of the rice field|
35. 2 weeks after transplanting, pull out the weeds. Drain all the water away. Apply 100 kilogrammes of ammonium sulfate for every hectare of rice field. This fertilizer contains nitrogen. When the panicles are forming, drain and apply 50 kilogrammes of ammonium sulfate for every hectare.