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All Journal Jurnal Penelitian Pertanian Terapan Jurnal Agrotek Tropika
Dad R. J. Sembodo
Universitas Lampung
Agriculture, Biological Sciences & Forestry

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UJI SIFAT CAMPURAN HERBISIDA 2,4-D DIMETIL AMINA DAN ISOPROPILAMINA GLIFOSAT TERHADAP GULMA Cyperus kyllingia, Borreria alata, DAN Axonopus compressus Fairuz Diva Andini; Hidayat Pujisiswanto; Herry Susanto; Nanik Sriyani; Dad R. J. Sembodo
Jurnal Agrotek Tropika Vol 10, No 4 (2022): JURNAL AGROTEK TROPIKA VOL 10, NOVEMBER 2022
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v10i4.6578

Abstract

Pencampuran herbisida bertujuan untuk memperluas spektrum pengendalian gulma, meningkatkan efektivitas herbisida, dan mengurangi biaya pengendalian.  Herbisida campuran dengan dua atau lebih jenis bahan aktif akan menunjukkan interaksi antara satu bahan aktif dengan bahan yang lain.  Interaksi yang dihasilkan yaitu bersifat sinergis, antagonis, atau aditif.  Penelitian bertujuan untuk menguji sifat campuran herbisida berbahan aktif 2,4-D dimetil amina dan isopropilamina glifosat yang diaplikasikan terhadap gulma Cyperus kyllingia, Borreria alata, dan Axonopus compressus.  Penelitian dilakukan di rumah kaca Lapangan Terpadu dan laboratorium Ilmu Gulma Universitas Lampung, mulai bulan Desember 2020 sampai Februari 2021.  Penelitian disusun dalam Rancangan Acak Kelompok (RAK), dengan perlakuan herbisida tunggal 2,4-D dimetil amina 100 g/l (25, 50, 100, 200 g/ha), isopropilamina glifosat 300 g/l (75, 150, 300, 600 g/ha), campuran herbisida 2,4-D dimetil amina 100 g/l + isopropilamina glifosat 300 g/l (50, 100, 200, 400 g/ha), dan tanpa perlakuan herbisida (kontrol) dengan 6 ulangan.  Gulma uji terdiri dari tiga golongan yang berbeda yaitu golongan teki (C. kyllingia), golongan daun lebar (B. alata), dan golongan rumput (A. compressus).  Analisis aktivitas herbisida campuran dilakukan dengan metode MSM untuk menentukan LD50 perlakuan dan harapan.  Hasil analisis menunjukkan bahwa campuran dua bahan aktif herbisida 2,4-D dimetil amina 100g/l + isopropilamina glifosat 300 g/l memiliki nilai LD50 perlakuan sebesar 11,00 g/ha lebih kecil dari nilai LD50 harapan sebesar 15,40 g/ha dan nilai ko-toksisitas sebesar 1,4 (>1), sehingga pencampuran herbisida berbahan aktif 2,4-D dimetil amina + isopropilamina glifosat bersifat sinergis.
Efektivitas Ekstrak Cacabean (Ludwigia hyssopifolia G. Don Exell) pada Perkecambahan Biji dan Pertumbuhan Gulma Bobontengan (Leptochloa chinensis L. Nees) Hidayat Pujisiswanto; Putri Rahmadani; Eko Pramono Pramono; Dad R. J. Sembodo
Jurnal Penelitian Pertanian Terapan Vol 24 No 3 (2024)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v24i3.3316

Abstract

The presence of bobontengan weed (Leptochloa chinensis) in rice fields is considered to be detrimental and need to be controlled. Compounds secondary metabolites plant can be used as herbicides for weed control. Cacabean (Ludwigia hyssopifolia) is one of the plants that contain secondary metabolites compounds. This study aimed to determine the potency of the extract of each part of cacabean plant and the level of concentration in germination and growth of bobontengan. The research was carried out from February to March 2023, in the Integrated Field Greenhouse, Faculty of Agriculture, University of Lampung. The research design used a Randomized Block Experiment Design (RAK). The treatment consisted of two factors with four groups. The first factor was the source of cacabean extract: leaves, stems and roots, while the second factor was the concentration of cacabean extract which consisted of 4 levels: 0, 5, 10 and 15%. The homogeneity of variance was tested by Bartlett's test and the additiveness of the data was tested by Tukey's test. If the assumptions are met, the data is analyzed by analysis of variance and differences in treatment mean values followed by the Least Significant Difference (LSD) test at the 5% level. The results showed that extracts of leaves, stems and roots of cacabean at concentrations of 5, 10 and 15% effectively suppressed seed germination and bobontengan weed growth. L.hyssopifolia leaf extract was most effective in suppressing germination, shoot height growth, and dry weight of bobontengan weed. Cacabean leaves and stem extracts were most effective in suppressing the percentage of germination, shoot height growth, and the total dry weight of bobontengan. Concentration of 15% of Cacabean extract was most effective in suppressing the growth of shoot height of 2 MSA, root length, and dry weight of bobontengan, while the concentration of 10-15% was most effective in suppressing the percentage of germination and shoot height of 4 MSA. Sources of cacabean leaves, stem and root extracts were influenced by the level of extract concentration in suppressing seed germination and crown height.
Co-Authors Eko Pramono Pramono Fairuz Diva Andini Herry Susanto Hidayat Pujisiswanto Nanik Sriyani Putri Rahmadani