What this means for your programme
The official profile separates direct-seeded and transplanted crops. Its yield range also spans those two methods, rather than describing uncertainty around one treatment.
Planning interpretation by soil.ag, based on the profile below.
Where it fits
Central irrigated lowlands. Strong straw; good grain quality; official profile reports resistance to white-backed planthopper.
What to watch
Susceptible to blast, ragged stunt and orange-leaf disease.
These are historical variety descriptions. Check local scouting and current advice; a resistance claim does not rule out a problem in your field.
Use the calendar correctly
Wet direct seeding: 111 days; Transplanting: 118 days. The source gives separate ages by establishment method but does not explain how nursery time was counted.
Record sowing, transplanting and observed stages separately so comparisons use the same clock.
What does the yield reference tell us?
Official profile means by establishment: 738 kg/rai wet direct seeding; 745 kg/rai transplanting. The range spans those two means, not uncertainty or a national average.
A yield figure alone does not identify the right fertilizer rate. Compare records with their soil, water, inputs and harvest basis attached.
Can I use GDD for this variety?
No reviewed simple harvest-GDD target is published here. A duration in days cannot be converted into a universal heat-unit requirement without temperature data and a defined starting point.
Read the crop-stage guide →Reference: Thai Rice Department · RD31 ↗. Official profile checked 27 September 2026.
Before choosing the next fertilizer split
Put previous applications, soil results, water management and crop observations beside the intended growth-stage window.
Review rice nitrogen timing →