一、选用抗寒品种。这是防止枝干冻害的根本途径,如我省北部寒冷地区选栽金红苹果,而不宜发展抗寒性较差的红富士等。 二、加强栽培管理,培育耐寒树体。苹果树抗寒能力的大小与树体营养状况密切相关,因此,要加强土、肥、水管理,秋季采果后要及早施有机肥。基肥应以厩、 First, the selection of cold varieties. This is the fundamental way to prevent freeze-dried stems, such as the northern part of our province, the election of golden red apple in cold areas, and not suitable for the development of poor Red Fuji disabilities. Second, to strengthen cultivation and management, cultivate cold-resistant trees. The ability of cold-resistant apple trees is closely related to the nutritional status of trees. Therefore, we should strengthen the management of soil, fertilizer and water and apply organic fertilizer as soon as possible after harvesting in autumn. Base fertilizer should be stable,