Abstract
Seedbank control is important in integrated weed management. This study aims to determine the dose of indaziflam to seedbank at some depth of soil on oil palm plantations. The experiment used factorial randomized block design with four replications. Measured at an indaziflam dose 75, 100, 150 and 200 gram of active ingredients per hectare (g.a.i.ha−1), and soil depth 0-5, 5-10, 10-15 and 15-20 cm. Results showed that indaziflam doses 150-200 g.a.i.ha−1 were able to suppress the presence Eleusine indica at 4.8 and 12 weeks after application (WAA) (71.91-91.13%). Dosage 75-200 g.a.i.ha−1 effective controlling Cynodon dactilon at 8 and 12 WAA (66.07-89.29%). Dosage 150-200 g.a.i.ha−1 effective controlling Kyllinga nemoralis at 4 and 12 WAA (76.57-100%). Dosage 100-200 g.a.i.ha−1 effective controlling Phyllanthus niruri (100%), dosage 150-200 g.a.i.ha−1 effective controlling Cleome rutidospermae (74.49-85.92%), and dosage 75-200 g.a.i.ha−1 effective controlling Ageratum conyzoides (100%) at 12 WAA. Effectiveness indaziflam can suppress the presence Eleusine indica and Kyllinga nemoralis at a soil depth 0-20cm (4.8 and 12 WAA), Cynodon dactilon at a depth 5-20cm (8 and 12 WAA), and Ageratum conyzoides at a depth 0-15cm (12 WAA).
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