Abstract
The purpose of this research to determined the effect of Sargassum sp. liquid organic fertilizer in the growth of spinach plant ( Amaranthus hybridus L.) using hydroponic. This research used Completely Randomized Design with six treatments and four repetitions ie: A= comparison (AB mix 10 mL/L of water), B= liquid organic fertilizer 6 mL/L of water, C= liquid organic fertilizer 8 mL/L of water, D= liquid organic fertilizer 10 mL/L of water, E= liquid organic fertilizer 12 mL/L of water, and F= liquid organic fertilizer 14 mL/L of water. Parameter observed was height of plants, number of leaves, leaf surface area, fresh weight of plants, and dry weight of plants. Data was analyzed by using the Analysis of Variants (ANOVA) and Duncan. The result showed that application of Sargassum sp. liquid organic fertilizer has been an effect on height of plants, number of leaves, leaf area, fresh weight of plants, and dry weight of spinach plant ( Amaranthus hybridus L . ). However, the effect was not as expected to increase the growth of spinach plant.
Highlights
much in demand by people but spinach production is declining due to reduced agricultural land
The purpose of this study to determine the effect of Sargassum sp
This study was conducted in December 2017 until April 2018
Summary
Sayuran merupakan tanaman holtikultura yang memegang peranan penting dalam kehidupan manusia, baik sebagai sumber gizi maupun untuk menambah selera makan. Salah satu jenis tanaman sayuran daun adalah bayam. Untuk Kota Padang, produksi bayam berkurang karena lahan pertanian semakin sempit (BPS Kota Padang, 2016). Saat ini ada cara lain untuk memanfaatkan lahan sempit sebagai usaha untuk mengembangkan hasil pertanian, yaitu dengan cara bercocok tanam secara hidroponik. Pada budidaya tanaman secara hidroponik, tanaman memperoleh unsur hara dari larutan nutrisi yang dipersiapkan khusus. Salah satu alternatif untuk mendapatkan nutrisi hidroponik adalah dengan menggunakan Sargassum sp. Merupakan salah satu rumput laut yang sangat melimpah tetapi pemanfaatannya masih belum banyak dilakukan. Menurut hasil penelitian Ambarita et al (2014), penggunaan pupuk cair rumput laut (Sargassum sp.) dapat meningkatkan kandungan Nitrogen (N) tanah, luas daun, dan bobot massa tanaman sawi. Tujuan penelitian untuk mengetahui pengaruh pupuk organic cair berbahan dasar Sargassum sp. Tujuan penelitian untuk mengetahui pengaruh pupuk organic cair berbahan dasar Sargassum sp. terhadap pertumbuhan tanaman bayam (Amaranthus hybridus L.). dengan teknik hidroponik
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