Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions CMA Beijing 100081 ChinaNingxia Key Lab of Meteorological Disaster Prevention and Reduction Guyuan 756000 China;
Guyuan Branch Ningxia Academy of Agriculture and Forestry Sciences Guyuan 756000 China;
Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions CMA Beijing 100081 China;
Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions CMA Beijing 100081 China;
Guyuan Branch Ningxia Academy of Agriculture and Forestry Sciences Guyuan 756000 China;
Guyuan Branch Ningxia Academy of Agriculture and Forestry Sciences Guyuan 756000 China;
Buckwheat(Fagopyrum esculentum Moench.); Planting density; Physiological index; Agronomic trait; Yield;