Electronic Theses and Dissertation

Abstrak. Bawang putih (Allium sativum L.) merupakan tanaman hortikultura penting di Indonesia, karena memiliki nilai ekonomi yang tinggi di pasaran lokal maupun internasional. Oleh karena itu perlu dilakukan upaya untuk meningkatkan produksi tanaman bawang putih dengan perbaikan teknologi budidayanya. Penelitian ini bertujuan untuk mengetahui pengaruh dosis kompos limbah sereh wangi dan pupuk NPK serta interaksi diantara kedua perlakuan tersebut terhadap pertumbuhan dan hasil tanaman bawang putih di dataran tinggi Gayo Lues. Penelitian ini dilaksanakan dari bulan Januari sampai dengan April 2021di Kampung Beranang Kecamatan Kutapanjang Kabupaten Gayo Lues dan Laboratorium Dasar PSDKU Gayo Lues. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok pola faktorial 3 x 3 dengan 3 ulangan. Faktor yang diteliti adalah dosis kompos limbah sereh wangi yang terdiri dari 3 taraf yaitu kontrol, 10 ton ha-1 dan 20 ton ha-1 dan dosis pupuk NPK terdiri dari 3 taraf yaitu 400 kg ha-1, 600 kg ha-1 dan 800 kg ha-1. Parameter yang diamati adalah tinggi tanaman, jumlah siung umbi per rumpun, diameter umbi, bobot berangkasan basah per rumpun, bobot umbi basah per rumpun, bobot berangkasan kering per rumpun, bobot umbi kering per rumpun, bobot umbi per plot netto dan potensi hasil. Hasil penelitian menunjukkan bahwa kompos limbah sereh wangi berpengaruh sangat nyata terhadap jumlah siung umbi per rumpun, diameter umbi, bobot berangkasan basah per rumpun, bobot umbi basah per rumpun, bobot berangkasan kering per rumpun, bobot umbi kering per rumpun, bobot umbi per plot netto dan potensi hasil serta berpengaruh nyata pada tinggi tanaman umur 60 HST. Pertumbuhan dan hasil tanaman bawang putih di dataran tinggi Gayo Lues yang terbaik dijumpai pada dosis kompos limbah sereh wangi 20 ton ha-1. Perlakuan dosis pupuk NPK berpengaruh sangat nyata terhadap jumlah siung umbi per rumpun, diameter umbi, bobot berangkasan basah per rumpun, bobot umbi basah per rumpun, bobot berangkasan kering per rumpun, bobot umbi kering per rumpun, bobot umbi per plot netto dan potensi hasil. Pertumbuhan dan hasil tanaman bawang putih di dataran tinggi Gayo Lues yang terbaik dijumpai pada dosis pupuk NPK 800 kg ha-1. Terdapat interaksi yang sangat nyata akibat pemberian kompos limbah sereh wangi dengan pupuk NPK terhadap bobot umbi per plot netto dan potensi hasil. Kombinasi perlakuan terbaik terhadap pertumbuhan dan hasil tanaman bawang putih di dataran tinggi Gayo Lues dijumpai pada perlakuan dosis kompos limbah sereh wangi 20 ton ha-1 dengan pupuk NPK 800 kg ha-1.

Kata kunci : Kompos Limbah Sereh Wangi, Pupuk NPK, Bawang Putih.

Abstract. Garlic (Allium sativum L.) is an important horticultural crop in Indonesia, because it has high economic value in local and international markets. Therefore, it is necessary to make efforts to increase the production of garlic plants by improving the cultivation technology. This study aims to determine the effect of the dose of citronella waste compost and NPK fertilizer and the interaction between the two treatments on the growth and yield of garlic plants in the Gayo Lues highlands. This research was conducted from January to April 2021 in Beranang Village, Kutapanjang District, Gayo Lues Regency and the Gayo Lues PSDKU Basic Laboratory. The design used in this study was a 3 x 3 factorial randomized block design with 3 replications. The factors studied were the dose of citronella waste compost which consisted of 3 levels, namely control, 10 tons ha-1 and 20 tons ha-1 and the dose of NPK fertilizer consisted of 3 levels, namely 400 kg ha-1, 600 kg ha-1 and 800 kg ha-1. Parameters observed were plant height, number of cloves tubers per clump, tuber diameter, weight of wet tuber per clump, weight of wet tuber per clump, weight of dry tuber per clump, weight of tuber dry per clump, weight of tuber per net plot and yield potential. The results showed that citronella waste compost had a very significant effect on the number of bulbs per clump, tuber diameter, weight of wet tuber per clump, weight of wet tuber per clump, weight of dry root per clump, weight of dry tuber per clump, tuber weight per net plot. and yield potential and significantly affected plant height at 60 DAP. The best growth and yield of garlic in the Gayo Lues highlands was found at a dose of citronella waste compost 20 tons ha-1. The dose treatment of NPK fertilizer had a very significant effect on the number of bulbs per clump, tuber diameter, wet tuber weight per clump, wet tuber weight per clump, dry tuber weight per clump, dry tuber weight per clump, tuber weight per net plot and yield potential. The best growth and yield of garlic in the Gayo Lues highlands was found at a dose of 800 kg ha-1 NPK fertilizer. There was a very significant interaction due to the application of citronella waste compost with NPK fertilizer on tuber weight per net plot and yield potential. The best combination of treatments on the growth and yield of garlic in the Gayo Lues highlands was found in the treatment with a dose of citronella waste compost 20 tons ha-1 with 800 kg ha-1 NPK fertilizer.

Key words : Compost of Citronella Waste, NPK Fertilizer, Garlic.

Tidak Tersedia Deskripsi