调查研究初步表明,发展板栗必须坚持适地适树原则。在河北省太行山区新发展的一些栗区,发现育苗期叶片黄化、死苗,定植树新梢叶片黄化等现象是土壤中某些障碍性因素所致。文中指出板栗缺锰的外部征状及其叶片含锰总量与土壤碳酸钙含量、pH、土壤有效锰含量之间的相关性。 Preliminary research shows that the development of chestnut must adhere to the principle of appropriate tree. Some newly developed chestnut areas in Taihang Mountainous area of ​​Hebei Province found that yellowing, dead seedling and leaf yellowing of new shoots were caused by some obstructive factors in the soil. The paper points out the external symptoms chestnut manganese deficiency and leaves its total manganese content and soil calcium carbonate content, pH, soil available manganese content correlation.