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All Journal Agroland : Jurnal Ilmu-Ilmu Pertanian
Valentino Valentino
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Agriculture, Biological Sciences & Forestry

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PENGENDALIAN HAMA Spodoptera exigua Hubner. PADA TANAMAN BAWANG MERAH VARIETAS LEMBAH PALU DENGAN PENGGUNAAN PUPUK DAN MULSA Valentino Valentino; Abd. Rahim Thaha
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 26, No 2 (2019)
Publisher : Universitas Tadulako

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Abstract

This study aimed to determine the effect of fertilizer and mulch on the intensity attack of S. exigua and the yield of Lembah Palu shallot variety. The research was conducted in Bolu Pountu Jaya, Sigi Village, District of Sigi Biromaru, Sigi Regency, from September to November 2013. The study design was a two-factorial randomized pattern with three replicates for each experimental unit. The first factor was various types of mulch consisted of four treatment without mulch (M0), rice straw mulch (M1), cocoa mulch (M2) and plastic mulch (M3). The second factor was different kinds of fertilizers including liquid organic fertilizer (P1), guano fertilizer (P2) and synthetic fertilizer (P3). There is no significant interaction effect between the type of fertilizers and mulch on the intensity of S. exigua and shallot yields. However, the individual effect of the mulches was significant on reducing the intensity of S. exigua attack and increasing the yield of the shallot. The rice straw mulch reduced the attack intensity of S. exigua by 20.83 %, whereas the cacao mulch increased the yield by 47.61 % compared to the control treatment. Keywords : Fertilizer, Lembah Palu shallot, mulch and Spodoptera exigua.
PENGARUH EKSTRAK AKAR TUBA Derris elliptica Benth. TERHADAP MORTALITAS Pomacea Canaliculata Lamarck. (MESOGASTROPODA: AMPULLARIIDAE) PADA PADI Oryza sativa L. Valentino Valentino; Burhanuddin Nasir; Moh. Hibban Toana
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 27, No 1 (2020)
Publisher : Universitas Tadulako

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            The purpose of this study was to determine the effective concentration of tuba Derris elliptica Bent. root extract against P. canaliculata mortality, intensity of rice damages and its effect on rice production. This research was carried out in November 2013 in irrigated paddy field of Astina Village, Torue District, Parigi Moutong Regency. This study used a randomized block design consisting of six treatments of tuba root extract concentrations i.e.  control, 1.25%, 2.5%, 5%, 10%, and 20%. The most effective results were shown by the tuba root extract at 10% concentration. It increased P. canaliculata mortality rate to 5.0 (2.34%), reduced the intensity of the rice tillers damages to only 3.67 (2.04%) and augmented the rice production to 5 tons/ha with an average difference between treatment was 0.2 tons/ha.  These results suggest that the root extract of Derris elliptica is highly potential to be developed as botanical pesticide. Keywords : Derris elliptica  Extracts, Oryza sativa L. and Pomacea. Canaliculata  Lamarck.
Co-Authors Abd. Rahim Thaha Burhanuddin Nasir Moh. Hibban Toana