我县1988年2月从河南省睢县果树研究所引进“特早熟无核桃”165株,栽种于县城附近的何家村砂质土壤地,今年实际结果110株,总产750公斤,平均单株产量6.8公斤,最高株产量达20.5公斤。 据我们三年来引种观察,特早熟无核桃的生物学特性与普通水蜜桃基本相似。幼龄树生长势旺盛,枝梢生长量大,年抽梢2次,即春、夏二梢,以夏梢生长量最大,多数长达1m以上。初果期以长果枝结果为主,生长结果良好(见封面照),若不进行修剪,结果部位多在树冠外围,内膛枝落果严 My county in February 1988 from the Pixian Fruit Research Institute in Henan Province introduced “special precocious walnut” 165, planted in Hejia village near the county sandy soil, the actual results of 110 this year, with a total output of 750 kg, the average single plant Production of 6.8 kg, the highest strain of 20.5 kg. According to our introduction of three years of observation, especially the biological characteristics of early ripe walnut and ordinary peach are basically similar. The growth of young trees is vigorous, and the shoot growth is large. The shoots are 2 times in spring, which is the spring and summer shoots. The summer shoots grow most, most of them are up to 1m in length. The first fruit of the long fruiting branch of the results, the growth of good results (see the cover photo), if not pruning, the results of the site more in the outer crown, the inner row of branches severely