UJI KEEFEKTIFAN HERBISIDA ATRAZIN, MESOTRION, DAN CAMPURAN ATRAZIN+MESOTRION TERHADAP BEBERAPA JENIS GULMA

Nana Ratna Wati, 1014121036 (2014) UJI KEEFEKTIFAN HERBISIDA ATRAZIN, MESOTRION, DAN CAMPURAN ATRAZIN+MESOTRION TERHADAP BEBERAPA JENIS GULMA. Fakultas Pertanian, Universitas Lampung.

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Abstrak

Abstrak Bahasa Indonesia Tujuan dilakukannya penelitian ini untuk mengetahui efektivitas herbisida campuran atrazin dengan mesotrion dalam mengendalikan gulma serta mengetahui sifat campuran kedua bahan aktif tersebut. Penelitian disusun dalam Rancangan Acak Lengkap (RAL). Perlakuan terdiri dari tiga jenis herbisida dengan enam tingkat dosis bahan aktif, yaitu herbisida atrazin 500 g l-1 (0, 76, 152, 304, 608, dan 1.215 g ha-1), mesotrion 50 g l-1 (0, 11, 22, 43, 86, dan 172 g ha-1), dan campuran atrazin 500 g l-1 + mesotrion 50 g l-1 (0, 28, 56, 112, 225, dan 450 g ha-1). Gulma sasaran meliputi dua gulma daun lebar (Asystasia gangetica dan Ageratum conyzoides), dua gulma rumput (Eleusine indica dan Paspalum conjugatum), serta dua gulma teki (Cyperus kyllingia dan Cyperus rotundus). Analisis data yang digunakan adalah metode Multiplicative Survival Model (MSM). Data bobot kering yang diperoleh selanjutnya dikonversi menjadi persen kerusakan. Data persen kerusakan ditransformasi ke dalam bentuk logaritmik untuk mendapatkan persamaan regresi. Persamaan regresi digunakan untuk menentukan nilai LD50 perlakuan dan harapan. Selanjutnya dihitung nilai ko-toksisitas dengan membandingkan LD50 harapan dan LD50 perlakuan. Hasil penelitian menunjukkan bahwa pencampuran herbisida atrazin 500 g L-1 + mesotrion 50 g L-1 memiliki LD50 harapan sebesar 28,06 g ha-1 dan LD50 perlakuan sebesar 281,14 g ha-1 dengan nilai ko-toksisitas sebesar 0,1 (ko-toksisitas < 1) sehingga campuran bersifat antagonis. Kata kunci: Atrazin, mesotrion, campuran, Multiplicative Survival Model (MSM), LD50 Abstract Bahasa Inggris The aimed of this research was to know the effectiveness of mixing herbicides with active ingredient atrazin and mesotrion in controlling weeds and know the mixture characteristic. This research conducted in the plastic garden house private in Natar, South Lampung and in the Weeds laboratory of Agriculture faculty, Lampung University from June until July 2013. This Research arranged in a Randomized Completely Design (RCD). Treatment consists of three types of herbicides with six level of dosage active ingredient, namely of single herbicides is atrazin 500 g l-1 (0, 76, 152, 304, 608, and 1.215 ha g-1), mesotrion 50 g l-1 (0, 11, 22, 43, 86, and 172 g ha-1), and mixed herbicides from atrazin 500 g l-1 + mesotrion 50 g l-1 (0, 28, 56, 112, 225, and 450 g ha-1). The target weed were a type of broadleaves (Asystasia gangetica), a type of grasses (Paspalum conjugatum), and a type of sedges (Cyperus kyllingia). Homogenity tested using Bartlet and aditivity tested using Tukey, data analyzed by Analisis of Variance and different median values tested with Least Significant Difference (LSD) level 5%. Results showed that an active ingredient mixture of atrazin 500 g L-1 + mesotrion 50 g L-1 has LD50 expectation value of 51,48 g ha-1 and LD50 treatment of 257,48 g ha-1 with the co-toxicity value was 0.2 (co-toxicity < 1) until mixture was antagonist. Keywords: Atrazin, mesotrion, herbicide mixture, Multiplicative Survival Model ( MSM), LD50

Tipe Karya Ilmiah: Skripsi
Subyek: A General Works = Karya Karya Umum
A General Works = Karya Karya Umum > Karya Karya Umum = 000
Program Studi: Fakultas Pertanian > Prodi Agroteknolgi
Depositing User: 4246772 . Digilib
Date Deposited: 07 Nov 2014 02:34
Last Modified: 07 Nov 2014 02:34
URI: http://digilib.unila.ac.id/id/eprint/5170

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