What this means for your programme
The source specifically warns that excess nitrogen can worsen bacterial leaf blight. Review crop condition and previous inputs before adding another split; account for the source’s cool-season planting caution.
Planning interpretation by soil.ag, based on the profile below.
Where it fits
Lower northern irrigated areas. Short duration and good milling; historical moderate blast and brown planthopper resistance.
What to watch
Excess nitrogen can worsen bacterial leaf blight. BPH susceptibility is noted in Nakhon Pathom and Pathum Thani. Mid-September through November planting can encounter yield-reducing cool weather.
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
105 days. The short profile does not identify the starting event. Do not assume days after transplanting.
Record sowing, transplanting and observed stages separately so comparisons use the same clock.
What does the yield reference tell us?
Official release-profile yield reference; site, season, input treatment and grain moisture are not fully specified here. Not a national average, field forecast or promised yield.
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 · RD41 ↗. 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 →