| Study to determine the appropriate of harvesting time and main crop stubble height for stubble-lodging rice ratooning method was conducted at farmers’ fields in Dontro subdistrict, Chalermprakiat district, Nakorn Si Thammarat province, from January to September 2011. Rice cultivar named Phitsanulok 2 was used in this experiment at the seed rate of 20 kg/rai by wet broadcast seeding for the main crop. The experiment was designed in split plot with 4 replication. The main plot was 2 groups of harvesting times: 28 and 34 days after 80 % flowering. The subplots was 3 groups of stubble height: 5-10, 20-25, and 40-45 cm. Plot size was 10x10 m2. Stubble lodged was done by driving a towing tractor with tires wheels. Wet broadcast seeding rice was conducted in the... |
