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September 2006

Lettuce and Other Leafy Vegetables

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Does knowing how your salad ingredients have been grown and what has been applied to them interest you? Does growing your own salad ingredients year round interest you? Our society is becoming increasingly more educated about health and nutrition and with this trend, many nutrition-conscious people are growing their own salad makings in small greenhouses where they are in charge of how, and with what substances, they are grown.

Organic Fertilizers in a Soilless Growing System

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Organic growing can be accomplished via either soil-based or lower-volume soiless systems. Soiless organic growing systems have been discussed in detail in previous articles. However, as a brief synopsis, soiless systems use materials such as perlite, pine bark, coconut core, compost and sawdust as a growing media, just to name a few, and these systems are usually found in a greenhouse growing environment. As in all growing systems, proper fertilization of the plants is key to healthy and vigorous growth and optimal production. In the case of a soiless media system, the type of media used plays a role in determining what fertilization is needed. The microorganism present in the media have the job of breaking down the various fertilizer components so that they are readily absorbed through the plant roots There are some challenges to supplying fertility in organic low-media-volume production systems.

Relative Relative Humidity

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CropKing Admin
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RELATIVE HUMIDITY is a measure of the amount of water in the air. Relative Humidity is measured on a relative scale rather than a linear scale (like measurements of temperature and distance) for example. Although this may make Relative Humidity a little harder to understand, its role in plant health is extremely important. It is possible to make the Relative Humidity a little more friendly to the plants through the use of equipment for greenhouse humidity control.