Jawapan kepada post di atas ialah Fertigasi, Aeroponic, Organoponics, Passive irrigation, Top Irrigation & Deep water culture adalah cabang kepada sistem Hydroponic kerana semuanya adalah kaedah penanaman tanaman tanpa tanah atau soilless culture. Marilah kita kupas satu persatu:
- Fertigasi / 'Passive Irrigation' adalah gabungan sistem pengairan titis atau drip irrigation yang menggunakan konsep Hydroponic yang mana nutrient disalurkan kepada setiap tanaman menggunakan sistem transportasi menggunakan paip irrigasi disambungkan ke microtube dan akhirnya ke driper atau alat penitis. Tanaman menggunakan media rendah zat yang menggantikan tanah dan dengan itu dapat mengelakkan penyakit bawaan tanah. Kaedah ini semakin terkenal dan mempunyai reputasi yang meluas di Malaysia, Thailand dan Indonesia.
- 'Aeroponic' pula adalah kaedah Hydroponic yang menggunakan sistem semburan kabus untuk menyampaikan nutrient ke akar yang mana akarnya berada dalam keadaan posisi tergantung. Sistem ini adalah cabang sistem Hydroponic yang mempunyai kadar penyaluran nutrient kepada pokok yang paling efisyen dan paling jimat dari segi penggunaan baja & air tetapi kos set up adalah antara yang paling mahal jika hendak dikomersialkan. Ianya semakin mendapat tempat di negara-negara Asean.
- 'Deep water culture' - Adalah kaedah sistem hydroponic yang diapungkan atau digantung di dalam larutan nutrient yang diperkaya dengan oksigen terlarut. kaedah ini secara tradisinya menggunakan bekas plastik yang besar dan tanaman di letakkan di dalam bekas berjejaring yang tergantung di tengah-tengah penutupnya dan akarnya tergantung di dalam larutan nutrient.
- 'Organoponics' - Adalah kaedah baru dalam sistem hydroponic yang mengubahsuai sistem asal kepada penanaman organik melalui sistem hydroponic. Ia menggantikan baja formula untuk hydroponic kepada baja kompos yang diperbuat dari bahan sisa gula. Dalam sistem hydroponic, akar pokok perlu mampu menyerap larutan nutrient. Organoponic menggunakan konsep yang sama, cuma bajanya dari jenis kompos yang dibuat dalam bentuk foliar atau larutan. Ia masih tidak menggunakan tanah tetapi tidak menggunakan sebatian kimia untuk larutan nutrient.
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The two main types of hydroponics are solution culture and medium culture. Solution culture does not use a solid medium for the roots, just the nutrient solution. The three main types of solution culture are static solution culture, continuous flow solution cultureaeroponics. The medium culture method has a solid medium for the roots and is named for the type of medium, e.g. sand culture, gravel culture or rockwool culture. There are two main variations for each medium, subirrigation and top irrigation. For all techniques, most hydroponic reservoirs are now built of plastic but other materials have been used including concrete, glass, metal, vegetable solids and wood. The containers should exclude light to prevent algae growth in the nutrient solution.
________________________The two main types of hydroponics are solution culture and medium culture. Solution culture does not use a solid medium for the roots, just the nutrient solution. The three main types of solution culture are static solution culture, continuous flow solution cultureaeroponics. The medium culture method has a solid medium for the roots and is named for the type of medium, e.g. sand culture, gravel culture or rockwool culture. There are two main variations for each medium, subirrigation and top irrigation. For all techniques, most hydroponic reservoirs are now built of plastic but other materials have been used including concrete, glass, metal, vegetable solids and wood. The containers should exclude light to prevent algae growth in the nutrient solution.
- Passive subirrigation/Fertigation -The medium generally has large air spaces, allowing ample oxygen to the roots, while capillary action delivers water and nutrients to the roots from the base of the medium. The simplest method has the container constantly sit in a shallow layer of nutrient solution or on a capillary mat saturated with nutrient solution. A variety of materials can be used for the medium: vermiculite, perlite, clay granules, rockwool, or gravel. This method requires little maintenance, requiring only occasional refilling and replacement of the nutrient solution. This keeps the medium regularly flushed with nutrient solution and air.
- Aeroponics is defined as a system where roots are continuously or discontinuously in an environment saturated with fine drops (a mist or aerosol) of nutrient solution. The method requires no substrate and entails growing plants with their roots suspended in a deep air or growth chamber with the roots periodically wetted with a fine mist of atomized nutrients. Excellent aeration is the main advantage of aeroponics.
- Deep Water Culture - The hydroponic method of plant production by means of suspending the plant roots in a solution of nutrient rich, oxygenated water. Traditional methods favor the use of plastic buckets and large containers with the plant contained in a net pot suspended from the centre of the lid and the roots suspended in the nutrient solution.
- Organoponics is a hydroponic system converted to organic cultivation by replacing the inorganic fertilizer with compost made from sugar waste. In a hydroponic system the roots need to be able to absorb nutrients as they touch the roots' hairs. There is no soil for organic fertilizer to sit in and release nutrients. So far, many chemical additives and root stimulators have done a great job adding nutrients to the plant through hydroponic gardening. Some claim that soil grown plants produce better tasting and possibly more nutritious food than hydroponically grown plants although this statement is not proven.
Model untuk pelbagai bentuk sistem penanaman tanpa tanah Hydroponic
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