Pengaruh Pemberian Pupuk Hijau (Azolla pinnata) Dan Plant Growth Promoting Rhizobakteri (PGPR) Terhadap Pertumbuhan Dan Produksi Tanaman Bawang Merah (Allium ascalonicum L.)

Abstract

Bawang merah (Allium ascalonicum L.) di Indonesia telah lama dibudidayakan oleh petani sebagai usaha tani, untuk meningkatkan produksi tanaman bawang merah dibutuhkan unsur hara yg cukup, salah satunya dengan pemberian pupuk hijau Azolla pinnata dan PGPR. Metode penelitian ini menggunakan Rancangan Acak Kelompok (RAK) Faktorial yang terdiri dari 2 faktor dengan 16 kombinasi perlakuan dan 2 ulangan. Faktor-faktor yang diteliti merupakan faktor pertama perlakuan pupuk hijau Azolla pinnata terdiri dari 4 taraf A0 = control, A1 = 0,5 Kg/plot. A2 = 1 Kg/plot dan A3 = 1,5 Kg/plot. Faktor yang kedua PGPR terdiri dari 4 taraf yaitu P0 = control, P1 = 10 ml/liter, P2 = 20 ml/liter, P3 = 30 ml/liter. Parameter yang diamati dalam penelitian ini adalah, tinggi tanaman,jumlah daun,berat biomassa,jumlah umbi,berat basah dan berat kering. Hasil penelitian ini menunjukan bahwa Pemberian pupuk hijau berpengaruh tidak nyata terhadap jumlah daun, berat biomassa per tanaman sampel, jumlah umbi per tanaman sampel, berat basah umbi per tanaman sampel, dan berat kering umbi per tanaman sampel. Tetapi berpengaruh nyata terhadap tinggi tanaman, berat biomassa per plot, jumlah umbi per plot, berat biomassa per plot, berat basah umbi per plot, dan berat kering umbi per plot. Sedangkan PGPR berpengaruh tidak nyata terhadap tinggi tanaman, berat biomassa per tanaman sampel, berat biomassa per plot, jumlah umbi per tanaman sampel, jumlah umbi per plot, berat basah umbi per tanaman sampel, berat basah umbi per plot, berat kering umbi per tanaman sampel dan berat kering umbi per plot. Tetapi berpengaruh nyata terhadap jumlah daun tanaman bawang merah. Shallots (Allium ascalonicum L.) In Indonesia has long been cultivated by farmers as a farming business, to increase the production of shallot plants sufficient nutrients are needed, one of which is by providing green manure Azolla pinnata and PGPR. This research method uses a Factorial Group Randomized Design (RAK) consisting of 2 factors with 16 treatment combinations and 2 repeats. The factors studied are the first factor of green manure treatment Azolla pinnata consists of 4 levels A0 = control, A1 = 0.5 Kg / plot. A2 = 1 Kg/plot and A3 = 1.5 Kg/plot. The second factor PGPR consists of 4 levels, namely P0 = control, P1 = 10 ml / liter, P2 = 20 ml / liter, P3 = 30 ml / liter. The parameters observed in this study were, plant height, number of leaves, biomass weight, number of tubers, wet weight and dry weight. The results of this study show that the application of green manure has no real effect on the number of leaves, biomass weight per sample plant, number of tubers per sample plant, wet weight of tubers per sample plant, and dry weight of tubers per sample plant. But it has a noticeable effect on plant height, biomass weight per plot, number of tubers per plot, biomass weight per plot, wet weight of tubers per plot, and dry weight of tubers per plot. While PGPR has no real effect on plant height, biomass weight per sample plant, biomass weight per plot, number of tubers per sample plant, number of tubers per plot, wet weight of tubers per sample plant, wet weight of tubers per plot, dry weight of tubers per sample plant and dry weight of tubers per plot. But it has a noticeable effect on the number of leaves of onion plants.