Journal of Hunan Ecological Science

【Objective】It is to research the application effect of integration water and fertilizer tech- nology on orah. 【Methods】Three treatments of T1 (no chemical fertilizer), T2 (conventional chemical fertilizer) and T3 (water and fertilizer integration, the total amount of chemical fertilizer decreased by 24. 76 % compared with T2) were set up to analyze the agronomic traits, quality and yield of orah in dif- ferent treatment groups. 【Result】(1) The application of water-fertilizer integration technology and con- ventional fertilization treatment had the same effect on promoting the growth of plants, and could effec- tively improve the plant height, trunk diameter, transverse and longitudinal canopy width, upper and lower canopy thickness. (2 ) In terms of fruit traits, the single fruit weight in T3 treatment group increased by 7. 69% and 2. 66% compared with T1 and T2, respectively. The transverse stems of T3 treatment group increased by 8. 85% and 4. 87% compared with T1 and T2, respectively. The longitudi- nal stems of T3 treatment group increased by 9. 09% and 5. 59% compared with T1 and T2, respective- ly. (3)The content of vitamin C in T3 group increased by 10. 17% and 3. 43% compared with T1 and T2, respectively. The total sugar content of T3 group was 3. 84% and 1. 50% higher than that of T1 and T2, respectively. The total acid content of T3 group reduced by 1. 59% compared with T1 and T2. Com- pared with T1 and T2, acid-sugar ratio in T3 group increased by 6. 00% and 3. 74% , respectively. (4) The yield of T3 was 28. 36% and 8. 61% higher than that of T1 and T2, respectively. 【Conclusion】The water and fertilizer integration technology can effectively promote the growth of orah plants, improve the yield and quality of orah fruits, and improve the utilization rate of fertilizer.

integration of water and fertilizer; orah; agronomic traits; yield; quality