Thursday, May 15, 2008

Hydroponic Gardening - pak choi

With oriental cuisine becoming more and more popular, pak choi makes a wonderful addition to your hydroponic garden. This leafy plant, a type of Chinese cabbage, grows quickly, is fairly simple to keep happy and is not prone to insect infestations when grown in a greenhouse. Two of the most important components in pak choi production are light and ventilation. Read on to find out how you can successfully grow pak choi in your hydroponic garden.

Growing pak choi takes approximately thirty-five days from planting to harvest. This allows growers to produce several crops per year. The growing cycle is divided into two parts, with the germination period being ten days in length and then re-locating the seedlings to grow to full size. During the germination period, light is provided to the plants for twenty-four hours a day. It is not recommended that a gardener use incandescent lamps during this stage, but instead use fluorescent lighting. This does serve a major purpose. Incandescent lights emit red waves, which can cause the plants to grow tall and spindly. Fluorescent lights, which emit blue light, will help stalks develop shorter and thicker, providing a strong base.

The nutrient film technique (NFT) is the most popular used for growing pak choi once it has been moved to its final growing area. The proper amount of overall, even light is necessary for the growth of plants. High-pressure sodium lamps are the recommended grow lights for this final growing stage. These bulbs not only put forth the correct color of light, they enable an even distribution of light.

The proper rate of plant transpiration is necessary to prevent tipburn. This is when the tips of the leaves turn brown because they are not getting the proper amount of calcium to the leaves from the roots. This is easily prevented. The best way to help pak choi achieve the proper transpiration rate is to outfit your greenhouse with some type of turbulator fan. This will work with the lighting to allow the hydroponic nutrient solution to move upwards from the roots and through the leaves at a rate that will keep your pak choi healthy.

Hydroponic gardening eliminates nearly all pests in a hydroponic garden. The quick rate at which pak choi matures and is ready for harvest, on average thirty-five days, is not long enough for any pests that may get into the greenhouse to set up colonies of any significance. If you are growing other crops in the same environment and find pest control necessary, using traditional pesticides may end up damaging all your plants. If absolutely necessary, hydroponic supply stores offer specially-formulated pest control products that are much safer.

Finally, to help ensure your pak choi gets the best nutrition possible, you should check out the seven best-kept secrets of hydroponics and subscribe to the Advanced Nutrients newsletter at http://www.advancednutrients.com/newsletter/. Advanced Nutrients is the world’s foremost supplier of hydroponic nutrients to discriminating growers everywhere.

1 comment:

Unknown said...

" It is not recommended that a gardener use incandescent lamps during this stage...

You should never use incandescent lamps to grow anything as they are horrible inefficient but rather high-intensity discharge i.e metal halide (blue light - vegatation) or sodium vapour (red light- flowering/fruiting), so use either metal halide or fluorescent (5000k - 6400k) for pak choi as you can also get fluorescents in the red spectrum (2700k). Thanks.