In 1961 His Majesty King Bhumibol ordered the Rice Department of the Ministry of Agriculture and Cooperatives to improve varieties of rice for both transplanted and upland rice fields to be planted at Chitralada Villa.
His Majesty personally gave instructions to readjust the tractor, making it suit the work better. His Majesty also drove the tractor by himself and went to the demonstration plot regularly to observe and to record the progress of growth of the rice that he personally sowed at each stage in detail until its harvest. Then His Majesty understood the obstacles that the peasants had experienced and tried to find ways to overcome them.