การเพิ่มผลผลิตข้าวภาคกลางจากการจัดเขตศักยภาพของพื้นที่

Abstract

Comparison of rice production between farmer' practices and introduced appropriate technology based on soil suitability and fertility was established according to accomplish rice production potential in the central plain since 2002. Results showed that most paddy soils were very suitable. Farmers in irrigated area applied higher amount of fertilizer than recommendation rates leading to less profit. For rainfed low land area, varietal supplement can increase more rice yield than fertilizer management. In conclusion, rice production potential in which had been demonstrated as potential mapping can increase an average yield by 10 percent with maximum decrease of total input cost of 40 percent leading to gain approximately 1,500 million baht a crop or 3,000 million baht a year value added from rice from 11 provinces.