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All Journal Jurnal Agroekoteknologi Agrin : Jurnal Penelitian Pertanian
Bela, Triwulan Maryanita
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Agriculture, Biological Sciences & Forestry

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Pengaruh Komposisi Media Semai Sistem Tertutup Terhadap Perkecambahan Padi (Oryza Sativa L.) Inpari 32 Harun, M Umar; Agustina, Heni; Bela, Triwulan Maryanita; Sopiana, Rina
Jurnal Agroekoteknologi Vol 15, No 2 (2023)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v15i2.21437

Abstract

One of the efforts to facilitate the way of taking rice seeds from the nursery media is to use plastic sacks instead of  directly from the soil.  To obtain the best planting media, experiments have been carried out on the no tidal swamp Rice   Fields, Pemulutan Village (3°05'42.7"S, 104°44'01.7"E), Ogan Ilir Regency, South Sumatra Province from June to August 2022.  The design method used was a Randomized Block Design. The treatments tested were four compositions of planting media mixtures, namely a mixture of soil with chicken manure, a mixture of black sand and chicken manure, a mixture of white sand and chicken manure, and black sand. The media composition ratio was 1:1 (V/V). All treatments were replicated three times to obtain 12 units. The seeds used are rice seeds of the Inpari 32 variety. The size of the seeding media made from plastic sacks was 160 cm x 100 cm, and the thickness of the entire planting media composition was 3 cm.  The plastic sacks used had a length of 180 cm and a width of 112 cm, and were used as a pad for a rice nursery which were 160 cm x 100 cm, and the thickness of all media compositions was 3 cm. The composition of the four treatments prior to the study showed that the pH was relatively the same (6.9-7.0) and the EC valuesvaried greatly (207-7734 mS), and at 14 day after plant (DAP) there was a decrease in pH to 4.3-5.3 and EC decreased drastically with narrow variations being (170-384 dS/cm).  Changes in the chemical properties of the media certainly had an impact on seed germination (70-90%) at 14 DAP of each media, and it turned out that the composiion of the type of planting media had  significant effect on sprout height, number of leaves, leaf length and sprout root length. In general, it can be concluded that the best media composition for rice germination is soil and chicken manure.
APLIKASI HERBISIDA NABATI AIR KELAPA (Cocos nucifera L.) TERHADAP GULMA PADI SISTEM TABELA DI LAHAN RAWA LEBAK Harun, M. Umar; Bela, Triwulan Maryanita; Agustina, Heni; Yakup, Yakup; Sopiana, Rina
Agrin Vol 28, No 2 (2024): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2024.28.2.806

Abstract

Salah satu kendala budidaya padi di lahan rawa lebak yaitu gulma yang berrmacam jenis dari kelompok rerumputan, teki dan berdaun lebar sehingga menjadi penghambat pertumbuhan padi. Untuk mengatasi gulma tersebut maka penggunan herbisida nabati sudah mulai dikembangkan. Penelitian bertujuan untuk mendapatkan informasi tentang prospek air kelapa yang difermentasi dengan ragi dan EM4 untuk diolah menjadi herbisida nabati, dan mendapatkan dosis herbisida nabati asal air kelapa tersebut untuk mengendalikan gulma padi sawah di rawa lebak. Penelitian ini berbahan dasar dari fermentasi air kelapa, bawang putih, EM4 dan ragi selama dua minggu. Larutan fermentasi air kelapa tersebut diencerkan menjadi perlakuan 25%, 50%, dan 75 % serta control yaitu 0%. Setiap perlakuan diulang sebanyak tiga ulangan. Aplikasi herbisida nabati diakukan dengan menggunakan knapsack sprayer yang dilakukan dengan 3 kali aplikasi yaitu pada umur padi 20 HST, 40 HST dan 60 HST. Adapun basis penyemprotan herbisida nabati adalah 400 L/Ha. Petak sampel berdimensi luas 6,25 m² atau volume semprot larutan herbisida nabati 250 mL/petak. Varietas padi yang digunakan adalah ciherang dengan system tanam tabur (Tabela). Hasil pengamatan awal diperoleh informasi bahwa keragaman gulma sebelum aplikasi terdiri dari famili Cyperacea yaitu Cyperus difformis, Cyperus iria dan Fimbristylis miliacea dan satu dari famili Poaceae yaitu Echinochloa crus-galli. Dosis 75% herbisida nabati dapat memicu perubahan warna daun gulma, dan fitotoksisitas pada gulma Fimbristylis miliacea akan tampak setelah 47 HST. Ada tiga jenis gulma yang belum mati yaitu gulma Cyperus difformis,gulma Cyperus iria, dan Echinochloa crus-galli. Berdasarkan hasil analisis regresi, peningkatan konsentrasi herbisida nabati berpengaruh terhadap penurunananbobot segar dan bobot kering gulma pada petak sampel.Kata kunci: air kelapa, herbisida nabati, gulma padi, rawa lebak
Co-Authors Harun, M Umar Heni Agustina M. Umar Harun Sopiana, Rina Yakup Parto