Pengaruh Pemberian Kompos Cair Ganggang Coklat (Sargassum polycystum) yang Diperkaya Pupuk N, P, K Terhadap Sifat Kimia Tanah Ultisol dan Produksi Bawang Merah
The Influence of Liquid Compost of Brown Algae (Sargassum polycystum) Enriched by N, P, K Fertilizer to Chemical Properties of Ultisol Soil and Shallot Production (Allium ascolonicum).
DOI:
https://doi.org/10.32734/joa.v7i1.2346Keywords:
Allium ascolonicum, liquid compost of brown algae, N, P, K, fertilizer, ultisol, bawang merah, kompos cair ganggang coklatAbstract
The aim of this research was to know the influence of brown algae (Sargassum polycystum) enriched by N, P, K fertilizer to the chemical properties of ultisol soil and Alium cepa L. production. This research was conducted in June-October 2017 using non factorial randomized design with 7 treatments and 4 replications ie P0 (Control), P1 (liquid compost (3x aplications) without enriched), P2 (liquid compost (3x aplications + 2 g urea + 5 g SP36 + 0.5 g KCl), P3 (liquid compost (3x aplications + 1 g urea + 2.5 g SP36 + 0.25 g KCl), P4 (liquid compost ( 6x aplications + 2 g urea + 5 g SP36 + 0.5 g KCl), P6 (liquid compost (6x aplications + 1 g urea + 2.5 g SP36 + 0.25 g KCl) The parameters observed were soil pH, Ntotal, P-available, K-dd, C-organic, dry weight of shoot, and dry weight of bulb.The results showed that brown algae (Sargassum polycystum) enriched by N, P, K fertilizer can increasing the pH of soil, P-available, K-dd, C-organic, dry weight of bulb and dry weight of shoot. The best dose was P2 (liquid compost (3x aplications + 2 g urea + 5 g SP36 + 0.5 g of KCl) to P-available, dry weight of shoot and dry weight of tuber,.
Penelitian ini bertujuan untuk mengetahui pengaruh pemberian kompos cair ganggang coklat (Sargassum polycystum) yang diperkaya pupuk N, P, K terhadap sifat kimia tanah ultisol dan produksi bawang merah. Penelitian ini dilakukan pada bulan Juni-Oktober 2017 menggunakan rancangan acak kelompok non faktorial dengan 7 perlakuan dan 4 ulangan yaitu P0 (Kontrol), P1 (Kompos cair (3x pemberian) tanpa diperkaya), P2 (Kompos cair (3x pemberian + 2 g urea + 5 g SP36 + 0,5 g KCl), P3 (Kompos cair (3x pemberian + 1 g urea + 2,5 g SP36 + 0,25 g KCl), P4 (Kompos cair (6x pemberian) tanpa diperkaya), P5 (Kompos cair (6x pemberian + 2 g urea + 5 g SP36 + 0,5 g KCl), P6 (Kompos cair (6x pemberian + 1 g urea + 2,5 g SP36 + 0,25 g KCl). Parameter yang diamati adalah pH tanah, N-total, Ptersedia, K-dd, C-organik, berat kering tajuk dan berat kering umbi. Hasil penelitian menunjukkan bahwa kompos cair ganggang coklat (Sargassum polycystum) yang diperkaya pupuk N, P, K dapat meningkatkan pH tanah, P-tersedia, K-dd, C-organik, berat kering tajuk dan berat kering umbi. Dosis terbaik adalah P2 (Kompos cair (3x pemberian + 2 g urea + 5 g SP36 + 0,5 g KCl) terhadap P-tersedia, berat kering tajuk dan berat kering umbi
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