Relative humidity

The effects of relative humidity on crop performance are not well understood. The crop can withstand a wide range of relative humidity, from very low to very high, as long as the changes are not drastic or frequent. At low relative humidity, irrigation becomes critical, whereas at high relative humidity diseases can manifest themselves. Growth in general is favored by high relative humidity; high relative humidity during the day can also improve fruit setting. However, high relative humidity, when not managed properly, can easily lead to water condensation on the plants and the development of serious diseases.

Growing Soilless

Growing Soilless

This is an easy-to-follow, step-by-step guide to growing organic, healthy vegetable, herbs and house plants without soil. Clearly illustrated with black and white line drawings, the book covers every aspect of home hydroponic gardening.

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