Abstract:The dryland farming region of the Northeast and Huanghuaihai Plain is the major grain-producing areas of China, and clearance of the nutrient resource quantity of main crop straw and utilization potential under straw returning in dryland farming region of the Northeast and Huanghuaihai Plain can provide reference data for reasonable utilization of straw nutrient resources and synthetic fertilizers reduction. Based on the China Statistical Yearbook during the period of 2015-2018, crop grass grain ratio, straw nutrient content and straw nutrient release