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This study aimed to evaluate the application of the paddy-ducks in various cropping systems by controlling pests in rice plants. It was conducted in an irrigated paddy field in S. Kertosari Village, Musi Rawas Regency started from August to November 2016 using an experimental method with a split plot design by 2 treatments and 3 times of repetition. The ducks’ treatment (I) as the main plot and the cropping system (S) as sub plots. The treatment of ducks (I) as the main plot includes I0 = without ducks (Control), I1 = Paddy-Ducks. On the other hand, the cropping system treatment (S) as sub plot includes S1 = Tegel System, S2 = Jajar Legowo 2:1, S3 = Jajar Legowo 3:1, S4 = Jajar Legowo 4:1, S5 = Jajar Legowo 5:1. The results showed that the treatment of ducks and cropping systems had significantly different results on the population of brown planthopper pests, but were not significantly p<0,05 different in the population of rice stem borer pests. The combination of the Without ducks treatment (l0) and the Tegel Cropping System (I0S1) had the highest percentage of the brown planthopper and rice stem borer attack. In Without ducks’ treatment (l0), the highest pest population was 3,03 brown planthopper and 2,50 stem borer. In the S1 Tegel Planting System, the highest pest population was 2,53 brown planthopper and rice stem borer and up to 2,54 in S4 treatment. The treatment of ducks (I1), the cropping system jajar legowo 2:1 (S2) and the combination of duck and cropping system jajar legowo 2:1 (I1S2) had the best results to all variables and are able to suppress the population and the percentage of pest attacks.

Penerapan Padi-Itik Pada Berbagai Sistem Tanam dalam Mengendalikan Serangga Hama di Tanaman Padi (Oryza sativa L)