EVALUATING THE GROWTH AND DEVELOPMENT OF LETTUCE, MUSTARD, AND TOMATOES WITH HYDROPONIC METHOD IN WATER HYACINTH ORGANIC FERTILIZER
DOI:
https://doi.org/10.62985/j.huit_ojs.vol26.no4.670Keywords:
Hydroponic, lettuce, leaf mustard, tomato, water hyacinth fertilizer.Abstract
Hydroponics is a method of growing plants without soil, using mineral nutrient solutions in a water solvent. Instead of soil, the roots of the plants are directly submerged in the nutrient-rich solution, which provides them with all the essential elements they need for growth. This method allows for precise control over the plant's environment, including nutrient levels, pH, and water content, leading to potentially faster growth rates and higher yields compared to traditional soil-based cultivation. Water hyacinth organic fertilizer is a type of fertilizer made from water hyacinth (Eichhornia crassipes), an aquatic plant. Water hyacinth is known for its fast growth rate and ability to absorb nutrients from water. To make organic fertilizer from water hyacinth, the plants are typically harvested, dried, and then processed into a usable form. In this research, we evaluated the use of water hyacinth organic fertilizer in a hydroponic system to grow lettuce (Lactuca sativa), leaf mustard (Brassica integrifolia), and tomatoes (Solanum lycopersicum). Findings demonstrate that blending water hyacinth fertilizer with coir markedly influences plant growth and development. For lettuce and leaf mustard grown on a Nutrient Film Technique (NFT) system, a 50:50 water hyacinth-to-coir ratio yields the best results, whereas a 75:25 ratio is ideal for tomatoes. Furthermore, all samples complied with safety limits for nitrate content, with lead, mercury, arsenic, and cadmium levels remaining below detectable thresholds. The research results have shown that utilizing water hyacinth combined with coconut coir as a substrate for hydroponically growing certain vegetables and fruits has helped address the issue of large volumes of water hyacinth waste. This approach creates a cost-effective and environmentally friendly substrate, suitable for sustainable hydroponic agriculture, with high feasibility for large-scale application.
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