| Rice production potential zoning in Samut Sakhon, Samut Prakhran and Samut Songkhram provinces was conducted in wet season 2010. Research methodology consisted of general rice production information collection, soil sampling and crop cutting from farmer field, field experiment and mapping of rice zoning. Results from field survey showed that the two crops of recommended rice varieties with transplanting were common practice in this area. Insect pest and diseases were controlled by chemical application. The 16-20-0 and 16-8-4 N-P2O5-K2O compound fertilizers were applied as basal treatment depending on extractable potassium in the area. Field experiment indicated that rice yield of R3 level (550-700 kg/rai) could be increased to be R2 level (701-850 kg/rai)... |
