The available boron and pH in 13 orchard soil sampled respectively from 13 counties in north Henan were determined,with the near soil grown with crop as ck.

• 对豫北地区13个市县的13个果园的土壤进行了有效硼含量和土壤酸碱度的测定,并以邻近大田土为对照,研究了豫北地区果园、大田土有效硼含量和土壤酸碱度的范围以及它们之间的相互关系。