The invention provides an intelligent 
sowing and fertilization 
control system for rice and a control method of the intelligent 
sowing and fertilization 
control system in the technical field of agricultural control. The 
control system comprises a central 
processing module, a rotary 
tillage control module, a 
sowing control module, a fertilization control module, a suppression control module and a 
pesticide spray control module, wherein speed sensors are mounted on hubs of wheels of a 
tractor; the sowing control module comprises multiple single seed box control units in one-to-one correspondenceto seed metering devices, the single seed box control units send detected seed box 
mass to the central 
processing module, and the central 
processing module calculates the seed metering quantity and controls the rotating speed of a seed metering motor according to the calculated seed meeting quantity; and the fertilization control module comprises multiple single 
fertilizer discharge control unitsin one-to-one correspondence to 
fertilizer dischargers, the single 
fertilizer discharge control units sends the detected fertilizer box 
mass and the rotating speed of a fertilizer 
discharge shaft to the central processing module, and the central processing module calculates the fertilizer discharge quantity and controls the rotating speed of a fertilizer discharge motor according to the calculatedfertilizer discharge quantity. The control 
system guarantees the uniformity of rotary 
tillage, sowing, fertilization and 
pesticide spraying.