| Aimed at the existing problems in the national regional tests of dry-land spring wheat in northwest China,this paper makes statistical analysis on the results of field investigations and regional tests in the past 4 years.Furthermore,it puts forward the proposals such as to arrange the test stations evenly,to enhance the infrastructure construction of test stations,to improve the management level,to keep the stability of experiment lands,to enhance the seedling emergence rate in dry-land test,to strengthen the prevention and control of plant diseases and insects,to increase the assistant contrasting varieties,to raise personnel quality,and so on. |