专家指出,我国从东北到西南有一条缺硒带,是一个缺硒大国,有22个省市的部分地区,约7亿人生活在低硒地区。河南省绝大部分地区是低硒区,洛宁、卢氏、灵宝、陕县和渑池等地区,曾因缺硒发生克山病和大骨节病。因此,开发富硒产品时不我待。一、富硒小麦每667平方米一般用0.6～1.0克 Experts point out that our country has a selenium deficit zone from northeast to southwest. It is a big selenium deficient country with 22 provinces and cities in parts and about 700 million people living in areas with low selenium. Most parts of Henan Province are low-selenium areas, Luoning, Lushi, Lingbao, Shanxian and Mianchi and other areas, Keshan disease and Kashin-Beck disease have occurred due to lack of selenium. Therefore, the development of selenium products do not wait. A, selenium-rich wheat per 667 square meters with 0.6 to 1.0 grams