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Hydroponics, Aquaponics and Aeroponics are innovative horticultural techniques that offer efficient, sustainable alternatives to traditional soil-based agriculture. These methods leverage advanced technology to optimize plant growth, conserve resources, and increase crop yields. Hydroponics involves growing plants in a nutrient-rich water solution, eliminating the need for soil. Plants are supported by inert media such as rock wool or clay pellets, which provide stability and facilitate root development. This method allows precise control over nutrient delivery, water usage, and environmental conditions, leading to faster growth rates and higher yields. Hydroponic systems can be implemented in various forms, including nutrient film technique (NFT), deep water culture (DWC) and drip systems. Aquaponics integrates hydroponics with aquaculture, creating a symbiotic environment where plants and fish coexist. Fish waste provides an organic nutrient source for the plants, while the plants filter and purify the water for the fish. This closed-loop system minimizes waste and reduces the need for synthetic fertilizers. Aquaponics is highly efficient, requiring less water than traditional farming and promoting biodiversity. It is particularly suitable for small-scale, urban, and sustainable agriculture initiatives. Aeroponics involves growing plants with their roots suspended in the air, misted with a nutrient solution. This method ensures that roots receive ample oxygen, promoting faster growth and higher nutrient uptake. Aeroponic systems use minimal water and nutrients compared to soil-based and hydroponic systems, making them highly efficient. They are also adaptable to vertical farming, allowing for space-efficient crop production in urban environments.
Kumar et al. (Fri,) studied this question.