What are the characteristics of 85 18 "walnut? (1) More than 80% of grafted seedlings with early fruiting in the same year will bloom in the same year, and some will bear fruit. If the grafting time is early, the walnut bearing fruit can mature on the saplings, and most of the walnut seedlings bought by customers will blossom and bear fruit after germination. (2) High-yield: In the second year of planting, most of the walnut seedlings bear more than 120, and in the third year, each tree bears more than 5 kg, and the fruit of each tree in plots with good water and fertilizer conditions reaches 10 kg, so that individual branches of walnut have gradually entered the high-yield period. The peak yield reached in 5 years, and the yield per mu exceeded 1,000 kg. (3) Excellent quality: The quality of "85 18" walnut nuts is excellent, and all the quality indexes have reached the national quality standard of walnut nuts. Average single fruit weight 1 4g, regular fruit shape, uniform size, smooth fruit surface, few pockmarks, shell thickness1mm (this thickness has the most commercial value, too thick, low kernel yield, too thin to transport), fingers can be crushed, the inner pleat wall degenerates, the diaphragm membrane is thin, the whole kernel can be easily taken, and the kernel yield is 63.8. (4) Easy management: The daily management of "85 18" walnut tree is simple, saving labor and money. General fruit trees need pruning and shaping to ensure the yield. However, the more lateral branches sprouted from "85 18" walnut tree, the higher the yield, so there is no need to prune and let it grow naturally. It also has fewer pests and diseases. The cost of pesticides and labor for management, disease prevention and pest control is much less than that of berry trees such as grapes, apples and peaches. (5) Strong disease resistance: There was a lot of rain in summer of 2004. In Dayang Town, Dongping County, Shandong Province, the incidence of anthracnose of "Xiangling" walnut trees was over 50%, and individual trees reached 100%, while the incidence of "85 18" walnut trees without fungicides was only 5%. (6) Storage resistance: "85 18" walnut nuts are storage resistant, and can be stored at room temperature for one year without deterioration. (7) Disaster resistance: "85 18" walnut has strong resistance to natural disasters. It is drought-resistant, waterlogging-resistant, barren-resistant, wind-resistant, hail-resistant and frost-resistant. Walnut has a thick green skin. After being injured by hail, it has little effect on nuts and will not reduce the commodity value of walnuts. Any kind of fruit tree is afraid of "late spring cold" during flowering and fruit setting. "85 18" walnut can resist the cold current of minus 5 degrees, while other fruits can only resist the cold current of 2-3 degrees. Even if the cold current exceeds 5 degrees below zero, the second flower of "85 18" walnut can bear fruit and will not be ruined.