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Article 2-1 Advance Nutrient Management

Advance Nutrient Management by Larry Brook To the skilled hydroponic grower, nutrient management represents an opportunity to enhance plant growth. To the novice, it represents a challenge to be dealt with. The difference is in knowledge, understanding and equipment. Consider the following questions to test your nutrient IQ: What temperature is your nutrient solution, what is the range during a [ read more ]

Article 1-6 Persimilisa Predator Against Spider Mites

A biological control agent effective against spider mites is available from a Vancouver Island company, Nature’s Alternative Insectary, Ltd. (NAI). Spider mites are common pests and can be identified as small spider-like mites, visible on plants as black dots on the leaves, with a close-up view showing dark lateral spots on the abdomen. They are usually found on the underside [ read more ]

Article 1-6 Aero Hydroponics The Way of The Future

Aero Hydroponics – The Method of the Future The aero-hydroponic method was developed in Israel in the early 1980’s. Dr. Hillel Soffer, senior researcher at the VoIcani Institute at Ein Gedi developed the aero-hydroponic method to overcome the challenges presented by the hot, arid conditions at Ein Gedi. The discoveries that followed the development of aero-hydroponics offer great benefits to [ read more ]

Article 1-5 Lighting & Plant Growth

As the importance of artificial light in the plant growing industry has increased, lamp manufacturers have begun to rate lamps specifically for plant needs. This article discusses and compares the different measures of “light level” that are currently used for plant growth and hydroponic applications. Light level is one of the important variables for optimizing plant growth, others being light [ read more ]

Article 1-5 Benefits of Kelp

Kelp is any of a variety of large, brown seaweeds that grow underwater and on rocky shores. Kelps are found in cold waters throughout the world. Kelps vary widely in size and form. One type of kelp, called giant kelp, may have hundreds of branches, each of which has hundreds of leaves. Giant kelp may reach over 200 feet in [ read more ]

Article 1-3 On The Leading Edge

Since water cooled growing lights have been in use by the hydroponics industry for a number of years now, it seems like a good time to look at them more closely and the best place to start is by showing just how leading edge a development they are – probably much more so than most people imagine. Why do I [ read more ]

Article 1-3 Pest Profile: Aphids

Aphids are major greenhouse pests because of their large host plant ranges, ability to produce high populations rapidly, ability to transmit plant viruses, their resistance to many commonly used insecticides and finally, difficulty in detection. There are more than 4,000 species of aphids, but only a few of them are pests in the greenhouse. The most common aphids in the [ read more ]

Article 1-3 Electrical Safety in Grow rooms

Electrical Safety for the Indoor Growrooms One of the commonly asked questions regarding electrical and gardening with High Intensity Discharge (HiD) lighting is “how many 1000 watt lights can run on this set?” Generally an outlet on your bedroom or basement wall is part of a 15 amp circuit. There are up to 12 lights and or plugs on that [ read more ]

Article 1-2 UV Air Ozonators

Many growers are discovering the benefits of deodorizing their grow rooms with inexpensive ozone technology. Steve Andrews of Ozone Environmental Technologies Inc. explains why bigger isn’t always best in the fresh air game. Ozone (03) is one of the most powerful oxidizers available. 03 doesn’t mask odors like mere air fresheners – it neutralizes odors at the source, then harmlessly [ read more ]
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