Abstract
This study aims to obtain a study of the productivity of Gliricidia sepium and Indigofera zollingeriana plants which are given various dosage of bioorganic fertilizer. This study used a completely randomized design of factorial patterns of two factors: the first factor was the type of plant (G = Gamal; I = Indigofera) and the second factor was the dosage of bioorganic fertilizer: D0 = without fertilizer; D1 = 5 tons ha-1; D2 = 10 tons ha-1; D3 = 15 tons ha-1; D4 = 20 tons ha-1; D5 = 25 tons ha-1; and D6 = 30 tons ha-1, so there are 14 treatment combinations. Each treatment was repeated three times so that it consisted of 42 experimental units. The variables observed were plant height, leaf number, stem diameter, leaf dry weight, stem dry weight, total herbage dry weight, amount of chlorophyll, ratio of dry weight of leaf / stems, and leaf area per pot. The results showed that the productivity of Indigofera zollingeriana significant higher than Gliricidia sepium. The application of bioorganic fertilizer significantly increased plant height, leaf number, dry weight leaf, stem dry weight, total forage dry weight, amount of chlorophyll, and leaf area per pot, and the highest yield at 30 tons/ha. Based on the results of the study it can be concluded that the productivity of Indigofera zollingeriana is higher than Gliricidia sepium, bioorganic fertilizer increased plant productivity with the highest yield at 30 tons ha-1, and interaction only occurs in the leaf area per pot.
 Keywords: Indigofera zollingeriana, Gliricidia sepium, dosage of fertilizer, bioorganic fertilizer
Highlights
This study aims to obtain a study of the productivity of Gliricidia sepium and Indigofera zollingeriana plants which are given various dosage of bioorganic fertilizer
The results showed that the productivity of Indigofera zollingeriana significant higher than Gliricidia sepium
Sugito, Y., 1999, Ekologi Tanaman:Pengaruh Factor Lingkungan Terhadap Pertumbuhan Tanaman dan Beberapa aspeknya, UB Press
Summary
Penelitian dilaksanakan di rumah kaca Laboratorium Tumbuhan Pakan, Fakultas Perternakan, Universitas Udayana di Stasiun Penelitian Fakultas Peternakan Jalan Raya Sesetan Gang Markisa, Denpasar Selatan selama tiga bulan. Bahan yang digunakan berupa tanah, air, pupuk, dan bibit tanaman. Persiapan Media Tanam Sebanyak 4 kg tanah kering udara yang lolos ayakan dengan lubang berdiameter 2 mm dimasukkan ke dalam pot plastik berdiameter 20 cm dengan kapasitas 5 kg, kemudian tiap-tiap pot diberi pupuk sesuai perlakuan, dan selanjutnya diberi label. Faktor kedua adalah dosis pupuk yaitu: D0 = tanpa pupuk, D1 = pupuk bioorganik 5 ton ha-1, D2 = pupuk bioorganik 10 ton ha-1, D3 = pupuk bioorganik 15 ton ha-1, D4 = pupuk bioorganik 20 ton ha-1, D5 = pupuk bioorganik 25 ton ha-1, dan D6 = pupuk bioorganik 30 ton ha-1. Dari kedua faktor tersebut diperoleh 14 kombinasi perlakauan yaitu: GD0, GD1, GD2, GD3, GD4, GD5, GD6 GD0, ID1, ID2, ID3, ID4, ID5, dan ID6. Setiap kombinasi perlakuan diulang sebanyak tiga kali, sehingga terdapat 42 unit percobaan. Analisis Data Data yang diperoleh dianalisis dengan analisis sidik ragam univarian (program SPSS), dan apabila nilai rata-rata perlakuan menunjukkan perbedaan yang nyata (P
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