- Spesis tanaman yang berbeza
- Spesis tanaman yang sama tetapi berbeza dari segi kitaran hayatnya
- Spesis tanaman yang sama tetapi berbeza dari segi musim tanamannya
- Spesis tanaman yang sama tetapi berbeza di bawah keadaan persekitaran yang berlainan
Sistem fizikal memerlukan zat disalurkan kepada tanaman. Bagaimana hendak mengukur berapa banyakkah setiap komponen zat yang diperlukan?
Definasi:
- Irrigasi/Pengairan - Membekalkan air ke tanah kering atau media menggunakan penyalur, paip, terusan dan sebagainya.
- Fertilizer/Pembajaan - Garam-garam bukan organik yang mengandungi elemen-elemen makro & mikro yang penting untuk pertumbuhan tanaman
- Fertigasi - Penggunaan zat baja yang lazimnya bukan organik untuk tanaman hidroponik di rumah lindungan hujan dan sistem yang kecil, walaupun sebahagian penggemar menggunakan campuran zat organik
- Rumusan Larutan Zat - Senarai bahan-bahan zat bukan organik dan kepekatannya dalam unit ppm (part per million) atau mMol (millimole). Ia termasuk juga jumlah sebenar bahan-bahan yang diperlukan untuk mendapatkan kepekatan yang ditetapkan serta tepat dari segi jumlah air dalam takungan, larutan dan sebagainya.
Plants can tolerate a wide range of watering and nutritional conditions…
However…for a commercial operation, the bottom line is profit which means optimizing plant growth and yield. Optimum watering and mineral nutrition are critical for optimum plant growth. Optimum watering and nutritional conditions can vary:
- For different plant species
- For the same plant species at different times of its life cycle
- For the same plant species at different times of the year
- For the same plant species under different environmental conditions
The physical systems required to deliver the nutrient solution to the plants. How to calculate how much of each compound to use.
DEFINITIONS
*Irrigation = The supplying of water to dry land using ditches, pipes, streams, etc.
*Fertilizer = Inorganic “salts” containing the essential macro and micro elements
necessary for plant growth. Also organic compounds that contain
such elements (i.e., manure, fish emulsion, bat guano, etc.) that, when added to
the soil or water, increase it’s “fertility”.
*Fertigation = The use of fertilizers (usually inorganic for commercial greenhouse
hydroponics and smaller systems, though some hobbyists use organic mixtures),
in the appropriate combination, concentration and pH, for every irrigation cycle.
*Nutrient solution recipe = A list of inorganic compounds, and their final
concentrations in ppm (“parts per million” or “milligram per liter”) or mMol
(millimole), etc. This can also include actual amounts of the compounds needed
to achieve the prescribed concentrations, given specific tank volumes, dilution
factors, etc.
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