Page 50

45 design compatible with their skill and limited resources. In just a year after its introduction, more than 2500 hand tractors were sold in the Philippines. This number was 2.5 times greater in sales during the previous three years, which was dominated by imported tillers. Later, more than 10,000 IRRI-designed hand tractors were locally produced through 1976.

Fig. __. Imported hand tractors in late 1960s and a commercial version of IRRI power tiller with the then President Ferdinand Marcos in the 1970s. Kuliglig-era. This was the start of widespread mechanization of paddy land preparation in irrigated areas using small hand tractors. The design of the IRRI power tiller has been modified by local manufacturers through time. The split-type transmission casing has been replaced with box-type casing, chains and sprockets have been enlarged, and the size has also been increased with wider cagewheels, bigger engines and longer handles to ease turning. The use of hand tractors (now locally known as “kuliglig� after the rice field cricket which was adopted by one manufacturer as brand) rose from 14 per thousand hectares in the Philippines to approximately 20 per thousand hectares in 1990 (Herdt, 1983). The irrigated areas tend to be more highly mechanized, with over one hand

The Evolution of Rice Production Practices  
The Evolution of Rice Production Practices  

July 2005 Philippine Institute for Development Studies Surian sa mga Pag-aaral Pangkaunlaran ng Pilipinas For comments, suggestions or furth...