| Rice production potential zoning of Petchaburi province had been conducted from 2010 to 2012. Research methodology composted of general rice production information collection, soil sampling and crop cutting from farmer field, and field experiment. The research found that there were 4 major rice varieties growing in the area Chainat1, Phitsanulok2, Suphanburi60 and Suphanburi1. The field experiments for comparing of fertilizer application were conducted 2 seasons at 12 locations. The results showed that L1 area, recommended fertilizer application (F1) gave the average yield of 1,067 kg/rai, while fertilizer application base on soil analysis (F2) gave the average yield of 1,222 kg/rai. Farmers’ practice of fertilizer application (F3) gave the average yield... |
