核桃是我国一种重要的木本油料和用材树种,经济价值很高。核仁含有丰富的脂肪、蛋白质等营养物质,脂肪含量高达70％以上,有“木本油料王”之称。核仁营养丰富,品质优良,在国内外市场上享有很高盛誉,是我国传统的出口物资。核桃果实的成熟,由于品种和植株个体之间的差异,一般在9月上旬至9月下旬成熟,当果实由绿色变黄绿色,外果皮开裂,标志着果实的成熟便可采收。通常9月中、下旬采收比较适宜。 Walnut is an important woody oilseed and timber species in our country, with high economic value. Nucleolus is rich in fat, protein and other nutrients, fat content as high as 70% or more, a “woody oil king,” said. Nucleolus nutrient-rich, high quality, enjoy a high reputation in the domestic and foreign markets, is China’s traditional export materials. Walnut fruit maturity, due to differences between species and plant individuals, generally mature in early September to late September, when the fruit from green to yellow-green, peel cracking, marking the fruit mature can be harvested. Usually mid-September, late harvest more appropriate.