Saturday, November 8, 2008

Hydroponic Nutrients are Key to Successful Soil Free Gardening

Hydroponics can be defined as a method for growing plants in water rather than soil. The principle behind it is that different media bearing all the nutrients of natural soil will support the growth of plants. Therefore, it's these nutrients which are the most vital component in the hydroponics process. When using soil for plants, fertilizers contain only those essential nutrients which the soil may be lacking. But still, in the case of hydroponic plants, these fertilizers are not adequate and therefore fertilizer formulated specifically for hydropolic systems are the ones that you have to use.

Different plants need different proportions of nutrients for different times. If you are looking for hydroponic nutrients for your plants, look for the ones with easy to read labels. The best ones are the ones that just say "grow" or "bloom" or some such. With this type of mixture, even a new gardener knows what to pick! Change the nutrients along with the growing cycle of your plants. The elements become depleted as the plant grows, so the solution needs to be changed. At certain times, important components can run out more quickly. Ideally you should change the solution every two weeks. Keep in mind that the proportion of nutrient solution and water remains consistent. If the fertilizer level increases due to evaporation of water, it could cause extensive root damage.

Usually the hydroponic nutrient solutions that are available are sold as a concentrate. The grower has to mix it according to the instructions and as per the requirement of the plant. For plants that are in poor growing conditions, like overheated flowerbeds or in low lighting, a weaker solution should be used. A weaker solution can aid even delicate newly planted cuttings. Use a regular solution on your normally growing healthy plants. You are ripe for a stronger solution if your garden can handle high growth with enough carbon dioxide distribution and lighting. Natural sunlight or good grow lighting like fluorescent grow lights are key. However, it is advisable to increase the concentration of the fertilizer gradually to save the plant from burning up.

Though the concentrate to water ratio is in the range of 150 – 600 parts per million, the level for most of the plants is 300 – 400 ppm. Remember that this is not to be mixed with any part of a nutrient solution but with water.

Now that you are aware of the need for different nutrients, you need to know which ones to use.  It is important that you know what nutrient you need. Your first consideration should be your growing medium--whether it be stone wool, sand, coco, etc. For instance, if coco is the medium you are using, go in for specific nutrients like canna coco nutrients. Super Veg A or Super Veg B would be ideal, and is a great formula for a vegitable in the crop stage.

The medium will determine the type of nutrient requirement. The best hydroponic ingredients are composed of mixtures of nitrogen, potassium and phosphorus. Nitrogen is essential for leaf growth and development. Potassium helps in the process of cell production and phosphorus is responsible for root development and flowering.

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