Abstract: In order to study the improvement effect of the warm field technology of “ditching drainage, alkali application to acid, micro-fertilizer control, micro fertilizer regulation and straw returning” on the improvement of cold soaked rice fields in Southeast Hubei, three treatments were set up as conventional technology mode （CK）,warm field technology model （T1） and micro-fertilizer improved technology mode （T2）,to clarify the influence of T1 and T2 on the soil temperature and yield composition of cold soaked fields. The results showed that compared with CK, T1 and T2 had a warming effect on the ground temperature of different soil depths; T1 and T2 could increase tiller, effective panicle and rice yield, T1 had the better effect of increasing rice yield; T1 could advance the growth period of rice, reduce risk of tight stubble in double cropping rice machine.

Key words: Southeast Hubei, cold waterlogged paddy field, warm field technology mode, soil temperature, yield composition