The Study on Appropriate Using of Fertilizers For Enhancing Growth and Yield of Ocimun sanctum L. in Moderate Saline Soil Area in Surin Province

Abstract

      Holy basil (Ocimum sanctum L.) is very important vegetable to the national economy both for domestic consumption and  exporting. The study on appropriate using of fertilizers for enhancing growth and yield of Ocimun sanctum L. in moderate saline soil area (5.42-6.29 ds/m) of Surin province. It is therefore important in terms of vitalizing proclaimed area of moderated saline soil. Hence, improving of moderated saline for extending suitable land for maximizing agricultural area is the significant of this research. The objectives of this study were 1) to study the yield of Ocimum sanctum L. and 2) to compare the appropriate chemical fertilizer ratio for growing Ocimum sanctum L. in moderated saline soil. The experiment was carried out through Randomized Complete Block Design (RCBD) consisted of 4 treatments with 3 replications. The treatments were T1 no fertilizer (control), T2 (manure 8,000 kg/rai + rice hull 8,000 kg/rai as basal fertilizer associated with 8,000 kg/rai of manure as top dressing application), T3 (manure 8,000 kg/rai + rice hull 8,000 kg/rai as basal fertilizer associated with 4,000 kg/rai of 15-15-15 chemical fertilizer as supplementary application) and T4 (manure 8,000 kg/rai + rice hull 8,000 kg/rai as basal fertilizer associated with 4,000 kg/rai of 13-13-21 chemical fertilizer as top dressing). Height and fresh weight yield were monthly collected. Results revealed that T2 significantly affected on height (62 cm.) and fresh weight yield (1,120 kg/rai) compared to other treatments (p < 0.05).