Text
PENGARUH BERBAGAI BAHAN AKTIF HERBISIDA PRA TUMBUH TERHADAP PENGENDALIAN GULMA DAN PERTUMBUHAN AKASIA MUDA (ACACIA CRASSICARPA)
The study aim to know active ingredients and a doses of pre emergence herbicides for suppressing weeds growth and its the effect on juvenile acacia three months after planting. The study was conducted in PT. Bumi Andalas Permai, The Sugihan Water District, Patch G 3020, The Baung River, Ogan Komering Ilir, South Sumatra. The study used a Randomized Block Design (RBD) and 8 treatments. Without Pre Emergence Herbicides (T1), Isoxaflutole 150 〖g․ha〗^(-1) (T2), Flumioxazine 100 〖g․ha〗^(-1) (T3), Flumioxazine 200 〖g․ha〗^(-1) (T4), Indaziflame and Iodosulfuron 150 〖g․ha〗^(-1) (T5), Indaziflame and Iodosulfuron 250 〖g․ha〗^(-1) (T6), Sulfentrazon 500 〖ml․ha〗^(-1) (T7), and Sulfentrazon 750 〖ml․ha〗^(-1) (T8). Research started from October 2021 to January 2022. The results showed that the dosed and various of pre emergence herbicides a significant effect for weeds covered, Specific Leaf Area (SLA) 8, and 12 weeks after application. However, herbicides dit not effect for height and diameter acacia stems. The best treatment to suppress for weed growth was at Indaziflame and Iodosulfuron 250 〖g․ha〗^(-1), a total weed cover of 8,06 % and dominated by the narrow leave Ottochloa nodosa with SDR value of 78,47 %. The biggest increase for height and diameter of acacia stems was for the active ingredient Sulfentrazon 750 〖ml.ha〗^(-1) which 107,56 cm and a diameter stem 3,62 cm. Highest value for Specific Leaf Area was at a treatment of Control with 119,37 cm².g^(-1). Treatment of Isoxaflutole 150 〖g․ha〗^(-1) caused a dechlorophyllization effect of acacia leaves with percentage injury of plant to the active ingredient Isoxaflutole is 44,79 %.
Inventory Code | Barcode | Call Number | Location | Status |
---|---|---|---|---|
2207002607 | T75755 | T757552022 | Central Library (Referens) | Available but not for loan - Not for Loan |
No other version available