Few techniques for growing residual free fruits/vegetables at home or outside:

The hydroponics method of farming is a soil-less type of farming because it requires no soil for the plants to grow. Instead, it uses water as its growing medium.
For this type of planting to be successful, three things are required:

Light: Without light, plants will not be able to produce the energy it needs to grow through a process called photosynthesis. Photosynthesis is a process by which plants convert light energy into chemical energy which can be later released to fuel the energy needed by plants. Light is therefore essential to the growth of the plant. A typical hydroponics system setup (vertical farming or indoor farming) will come with its own grow light (lamp) since it may not have access to direct sunlight.

Water: This is the growth medium and this is where you also apply the nutrient-solution that the plant needs to grow.  Asides some other micro-nutrients, the main requirements of the nutrient solution is Nitrogen (N), Phosphorus (P) and Potassium (K).

Micro Nutrients:
Nitrogen (N) – is a significant component in amino-acids, the basis of protein and also aids in the compounds that aid storage and use of energy.
Phosphorus (P) –  encourages root growth, contributes to structural strength and crop quality.
Potassium (K) –  contributes to crop quality, shape, size, colour, and yield. Also to get the correct proportions of this mix, the PH level (test for acidity/alkalinity) and Electrical conductivity (test of the strength of the nutrient solution) needs to be carried out on a regular basis.

Air  Since plants need carbon dioxide (CO2) present in air to convert the energy it gets from sunlight into sugar and water (the photosynthesis process), air is also an essential component in the hydroponics system and is provided by the fan and filter system.

The different types of hydroponics system include:
  • Wicks system
  • Water Culture
  • Ebb and Flow system
  • Drip system
  • N.F.T system: which is the most common type of the hydroponics system
What if we told you that plants could be grown while suspended in air? Seems far fetched, but that is exactly what aeroponics farming is about. Aeroponics doesn’t require a growing medium unlike geoponics, which involves growing plants in normal soil.

Here is a simple breakdown of the Aeroponics Process
Plants grown aeroponically are suspended in a reservoir or apparatus that can support the plant but there is minimal contact between the device and the plant which makes this 100% grown in air. The plants dangling root can then be sprayed with a nutrient-rich solution. Nearly any plant can be grown using the aeroponics process, however, herbs like ginger and vegetables like lettuce, basil, and tomatoes have been especially successful using this process.
Some of the benefits of using the aeroponics system include:
  • Ease of working with your plants
  • Cost effective since you won’t have to spend money on irrigation channels
  • Aids disease-free cultivation as plant-to-plant contact is limited and if a plant does become infected, it can be easily removed from the support structure without disrupting the other plants.
Aquaponics on the other hand, is a closed-loop system that relies on the symbiotic relationship among aquaculture (fish) & agriculture (plant) for fertilization. While fish waste accumulates in the water and provides the nutrients essential for plant growth, the plant naturally cleans the water. It provides a balanced, yet less regimented, environment.
Benefits of aquaponics:
1. Fish waste is the source of fertilization.
2. Efficient, sustainable and extremely productive.
3. Eliminating soil, eliminates soil borne diseases.
4. Integrated method is both sustainable and earth-friendly.
5. Fish are free from growth hormones and antibiotics

This way for growing crops is very organic in nature and doesn’t involve usage of any chemical product, hence produces very healthy & residual free output. But as this cropping technique also have an objective of growing fishery for commercial selling, hence we don’t recommend this way of farming.

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