1College of Horticulture,Gansu Agricultural University,Lanzhou 730070,Gansu,China;2Agricultural Technology Promotion Center of Yuzhong County,Lanzhou 730100,Gansu,China
Abstract:Based on the data of cultivation scale,waste production and resources utilization of 11 towns in Yuzhong County,the current situation of resources utilization in Yuzhong County was analyzed by looking up the annuals and interviewing with farmers.The results showed that the total reserves of planting waste from 2007 to 2017 were 221 800-319 500 t in Yuzhong County,and increasing the proportion on the output of vegetable residue and herbs residue steadily.The waste output of grain crops straw and vegetable residue accounting for 92.87% of the total,and the total nutrient content of waste increased first and then decreased gradually,in which the nutrient content of vegetable residue and herbs residue continued to rise,and particularly with the highest proportion of organic matter.Most of the farmers are middle-aged and elderly individuals(over 40 years old,78.49%)and with low qualification(level of primary education,73.53%).There were various ways of resource utilization,and straw return was the main way of utilization.The majority of farmers(93.25%)are satisfied with the recent resource utilization technologies;at the same time,part of farmers(57.14%)also pointed out the main difficulties faced by resource utilization,such as the lack of large-scale absorption platforms and sufficient policy support.