保护地桃树落花落果原因及预防措施保护地栽培桃树是当今果树生产中的一个新的课题，发展速度很快。在我国东北和山东烟台等地区已取得了较大面积的成功。我省及郑州地区也初具规模。日光温室栽培桃树，果实成熟早，一般较露地早２０—５０天，经济效益高，每亩产值达３—... Causes and Precautionary Measures for Fall Peach Trees in Protected Areas Protected cultivation of peach trees is a new issue in the production of fruit trees today and has developed rapidly. In the northeast of our country and Shandong Yantai and other regions have achieved a larger area of ​​success. My province and Zhengzhou area have begun to take shape. In the greenhouse, peach trees are cultivated, and the fruits mature early, generally 20-50 days earlier than the open field. The economic benefits are high and the output value per mu reaches 3 -...