Answer: “Protected cultivation” as it is called, using simple, energy efficient solar greenhouses, is widely used in China for horticultural crops. In fact, by 2005, it was estimated that there was nearly 1.4 million acres of fruit, vegetable, flowers, etc. being grown using this technology. For peaches and nectarines, the estimated acreage is around 30,000. The beauty of this system is that it is energy efficient, it can enable fruit production beginning 1 year after trees are planted, fruit can be produced up to 2 months early getting high market price and the need for and cost of pest control measures is considerably reduced.