Walnut is four king of nuts, in our long history of cultivation, a nationwide distribution of soybean oil. Because of its rich nutritional value and medicinal value, is very popular in the market, the price has risen every year. In Hickory, for example, in 2003, the purchase price is around 8 yuan per kilogram, 2005, the purchase price for the same area about 12 yuan per kilogram, up by 50%. Secretary-General of walnut professional associations 姜维瑞 said: walnut supply situation in the last two years is still hard to change. Walnut is rather special, it is not like food, vegetables, as the market ups and downs, the market is basically a walnut to last 3 to 5 years. Walnut tree, a tree trunk on the variety of different heights generally 2 to 10 meters, or ten meters tall; crown broad; gray-green bark when young, old and gray when the vertical lobed; branchlets glabrous, shiny, the students are shield-shaped gland, gray-green, later brownish. Odd pinnate 25 to 30 cm long, petiole and rachis childhood have a very short glandular hairs and glands; leaflets usually 5 to 9, dilute 3, oval-shaped oval or oblong, about 6 ~ 15 cm, a width of 3 to 6 cm, apex obtuse or acute, short-acuminate, base skew, nearly circular, margin entire or in saplings on those with sparse fine toothed, dark green above, hairless , pale green below, 11 to 15 pairs of lateral veins within the axils cluster pubescent, lateral leaflets with small petiole very short or subsessile, who was born in the lower end of the smaller, often with terminal leaflet about 3- 6 cm small petiole. Male inflorescence pendulous catkins, about 5 to 10 centimeters, dilute up to 15 cm. Male flower bracts, bracteoles and tepals are glandular hairs; 6 to 30 stamens, anthers yellow, glabrous. Female spikes usually with a 1-3 (1-4) female. Involucre female glandular hairs are very short, stigma light green. Infructescences short, Qi drooping, with 1-3 fruits; fruit nearly spherical diameter of 4-6 cm, glabrous; stone slightly buckling, there are two vertical edges, top with a short tip; thin diaphragm , inside void; endocarp inner wall with irregular voids or merely void and buckling. Tai'an Hi-tech Zone Edison horticultural field (www.tahxyy.com) is located 12 km south of Mount Tai, convenient transportation, is nationally renowned for its large-scale breeding base, the field in the fruit tree seedling breeding for decades, has more standard varieties Observation Nursery, seed demonstration garden, breeding nursery. In recent years, expanding the number of breeding apples, peaches, apricots, plums, dates, hawthorn and other species and improve quality, while focusing on doing the introduction, demonstration and promotion of the famous sand pear breeding varieties. Early first to introduce water-loving, water-loving, relaxed and at home and abroad, such as 36 varieties, and built with foreign joint venture Korea sand pear demonstration garden of 200 acres, this year most of the varieties have been put into operation or results. And about 10 million foreign sales scion bud varieties. At present, a lot of the sale of a variety of field Hokkaido boxwood 500 000, Cypress 5 million, 10 million arborvitae, cherry (mu), bungeana 40,000, while a large number: holly, Euonymus fortunei, leaves little Bo, Sa Jinbo, Photinia, boxwood seeds etc ....