Research Topics: Greenhouse

March 21, 2011

Greenhouse

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Articles general

Cold frame - "... a cold frame is a transparent-roofed enclosure, built low to the ground, used to protect plants from cold weather. The transparent top admits sunlight and prevents heat escape via convection that would otherwise occur, particularly at night. Essentially, a cold frame functions as a miniature greenhouse season extension device." - Wikipedia
Greenhouse - "A greenhouse (also called a glasshouse) is a building where plants are grown. These structures range in size from small sheds to very large buildings... a structure with different types of covering materials, such as a glass or plastic roof and frequently glass or plastic walls; it heats up because incoming visible solar radiation (for which the glass is transparent) from the sun is absorbed by plants, soil, and other things inside the building. Air warmed by the heat from hot interior surfaces is retained in the building by the roof and wall." - Wikipedia

Diary

March 21, 2011

The first day of spring. This year it also was the first day that felt like spring. In addition to a normal greenhouse, i like to work with a cold frame, so i built one of cheap materials. Cold frames are excellent for sowing seeds of plants that later are planted in the open, such as cabbage and salad. Cold frames also allow vegetables to be grown earlier in spring and later in autumn. The height of my cold frame is such that it can accommodate pepper plants. To start with, i planted a species of potatoes that grow very fast. Having them in a cold frame they are protected against frost and harvest will be three weeks earlier. By that time, the potatoes of last year won't taste very well anymore and are are depleted from vitamins.