The experiment was done in Zhouzhi Shaanxi kiwifruit orchard from December 2007 to March 2008. In this paper, the seven-year-old Actinidia deliciosa cv. Hayward was used as materials, combined with P and K fertilizer, pre-applied 3000kg/666.7m2farm manure, to study the effects of N application on leaf growth, fruit quality and storage-ability of kiwifruit in the method of three-factor- five -level optimal design. The main results were as follows:
1. Different fertilizing proportion, to some ex...