Abstract:

To provide basis for increasing yield, quality and optimizing fertilization for Cabernet Sauvignon of different yields and quality levels in Changli County of Hebei Province, leafstalk analysis and soil nutritional diagnosis were carried out. The results showed that K、Zn contents of Cabernet Sauvignon plant were low in the orchard of middle and low yield and low quality, and the problem of Mg deficiency existed in all these three orchards, Fe content was obviously low in low yield and quality orchard. In the orchard of middle and low yield and low quality, soil O.M., avail N,.P, K, and Zn were low, and avail. Mg in the three types of orchard were relatively low. In the orchard of high yield and good quality, soil avail. N, K and Mg were of positive relation with relative elements in the leafstalks, in the orchard of middle yield and low quality, soil avail. N, K, P, Mg and Zn were of positive relation with relative elements in the leafstalks, while in the orchard of low yield and low level, soil avail. K, Mg, and Zn were of positive relation with relative elements in the leafstalks.