Humidity is maintained as low as possible at all times.Īll greenhouse fruit species listed have been grown both in-ground and in 5-15 gallon pots. The high temperatures in summer can be held below 95 F in a greenhouse in Alpine. Summer cooling is achieved via wet wall and opposing 36 inch exhaust fans. The other fruits discussed need eight weeks of chilling or less. The crops requiring most chilling hours are sweet cherries and some apricots. Winter chilling is aided by shade cloth and evaporative cooling. Winter chilling requires about 10-12 weeks with nights at 38-40F and days as cool as can be managed, about 55-60F. Soil is a very well drained, deep, clay loam with moderate water holding capacity. A greenhouse of 1728 sq ft in Alpine, Texas costs about $50 per month for cooling and $300 per year for heating to 39F. Winters are mild enough that heating costs are reasonable. Summers are cool and dry enough that greenhouse temperatures can be held in the ideal range. elevation is ideally suited to greenhouse production of many fruits. A protective structure can increase yield and consistency of production, reduce diseases of tree and fruit, improve fruit appearance, and improve brix and sometimes flavor. With the proper structure, early blooming stone fruit and many other fruits could be grown in many parts of the USA where they are otherwise difficult to grow. The ideal design of the structure is dependent on the crop, the objectives of the growing situation, and climate. A greenhouse, high tunnel, or other protective structure can greatly improve production and fruit quality in many climatic conditions.
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