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核桃在我国已有二千多年的栽培历史,目前在华北、西北、西南地区和华东、中南、东北的部分地区均有大量分布,而且还生长着一定数量的原始群落。 核桃是核桃科核桃属植物,该属在世界上有20多种,我国目前有8种,而大量栽培的只有两种,即核桃(Juglans regia) 和铁核桃(Juglans Sigillata)。核桃主要在北方,
Walnut has been cultivated for more than 2000 years in our country. At present, there are a large number of walnut species distributed in parts of North China, Northwest China, Southwest China, East China, South Africa and Northeast China, and a certain number of primitive communities are also growing. Walnuts are walnut walnut genus, the genus in the world there are more than 20 species, 8 species in our country, while only two cultivated in large quantities, namely Juglans regia and Juglans Sigillata. Walnut mainly in the north,