Abstract
Dayak onions (Eleutherine palmifolia Merr) are a potential commodity that has many health benefits, so it has a high economic value. However, this Dayak onion plant has not received much attention in cultiva¬tion technology, especially fertilization. So far, this onion has grown relying on nature, while the land has diminished its fertility. This study tested a combination of chicken manure and NPK fertilizer to obtain the optimal composition to increase the productivity of Dayak onions. This study used a factorial randomized block design with 3 replications. The first factor consists of the treatment of chicken manure(O1 = control, O2 = 10 ton.ha-1 and O3 = 20 ton.ha-1). The second factor consists of NPK fertilizer(K1 = control, K2 = 100 kg.ha-1 Urea + 150 kg.ha-1 SP 36 + 200 kg.ha-1 KCl, K3 = 200 kg.ha-1Urea + 150 kg.ha-1 SP 36 + 200 kg.ha-1 KCl, and K4 = 300 kg.ha-1 Urea + 150 kg.ha-1 SP 36 + 200 kg.ha-1 KCl). The results showed that there was an interaction effect between the composition of chicken manure and NPK on the number of leaves, fresh weight of tubers, and dry weight of tubers per clump but did not affect the growth of plant height. The yield of Dayak bulbs of 62.60 g / clump was obtained in the composition of chicken manure of 20 tonnes.ha-1 with an NPK of 200 kg.ha-1 Urea + 150 kg.ha-1SP 36 + 200 kg.ha-1 KCl. From an economic perspective, the composition is very efficient and feasible, which is indicated by R / C> 1, namely 5.75, which means that with a certain unit cost, it can get 5.75 times the revenue.
Highlights
Dayak onions (Eleutherine palmifolia Merr) are a potential commodity that has many health benefits, so it has a high economic value
This study tested a combination of chicken manure and NPK fertilizer to obtain the optimal composition to increase the productivity of Dayak onions
The results showed that there was an interaction effect between the composition of chicken manure and NPK on the number of leaves, fresh weight of tubers, and dry weight of tubers per clump but did not affect the growth of plant height
Summary
Alat dan Bahan yang digunakan terdiri : umbi bibit bawang dayak varietas lokal, polybag ukuran 40 x40 cm, tanah sebagai media tanam dengan kandungan N-total 0,33 %, P-Bray 13,94 mg.kg-1, K 0,02 me/100 g, pH tanah 4,8 dengan tekstur tanah lempung berpasir. Urea sebagai sumber N, SP 36 sebagai sumber P, KCl sebagai sumber K dan pupuk kotoran ayam. Bahan tanam (umbi bibit) yang digunakan memiliki berat + 6-10 g/umbi. Kemudian umbi dipotong menjadi dua bagian yaitu umbi bagian atas (termasuk bagian daun) dan umbi bagian bawah (termasuk bagian akar). Pemotongan umbi dapat dilakukan dengan menyisakan + 10 cm yang diukur dari ujung daun. Sebelum ditanam umbi direndam ± 3 menit pada larutan fungisida, kemudian ditiriskan hingga kering. Umbi bibit kemudian ditanam ke dalam polybag yang sudah berisi media tanah dengan cara menyisakan sedikit bagian umbi di permukaan tanah
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