Philippine E-Journals

Performance of Irrigated Lowland Rice (Oryza sativa) Production under Different Irrigation Techniques in Sto. Tomas, Davao Del Norte, Philippines

Elmer B. Degorio | Ireneo P. Amplayo

 

Abstract:

The study was conducted to evaluate the performance of the three rice varieties, namely, inbred NSIC 212 and PSBRc 18, and hybrid Jolli rice, at various irrigation techniques. A total of 9 treatment combinations were used and replicated thrice. Agronomic data such as plant height, number of productive tillers, number of spikelet’s per panicle and percent filled grains per panicle and yield were used as indices for the response to the different treatments and varieties. Controlled irrigation gave the highest yield, 4,362.67 and 4,362.67 tons per hectare during dry and wet seasons, respectively. Te hybrid Jolli rice gave the highest yield for dry and wet seasons, 4,134.67 and 4,329.33 tons per hectare, respectively. Te volume of water consumed during the whole duration of the study was 2,150 m3 per hectare for controlled, while it was 2,800 m3 per hectare by intermittent irrigation. Further, 2,750 m3 per hectare was used throughout continuous flooding period. About 600 m3 per hectare of water was saved by controlled irrigation compared to the other two water regime per cropping.