Simulation experiment study on hail induced damage to rapeseed
To investigate the impact of hail on the damage of rapeseed.The simulation experiments were conducted in the field using steel balls of different sizes such as 5,10,25,and 30 mm to simulate the damage of hail with different diameters and densities to rapeseed.The effects of hail with different diameters on the aboveground biomass of rapeseed and the canopy spectrum of rapeseed were measured.The disaster losses of rapeseed during flowering and final flowering periods were collected,and the yield of rapeseed was statistically analyzed.The results indicated that simulating hail with a diameter of 30 mm had the greatest impact on the disaster losses of rapeseed.In simulated hail of the same diameter,the higher the density,the greater the disaster losses caused.The conclusions drawn from the spectral analysis of rapeseed before and after the disaster were not clear,and further research was needed in the future.To provide references for reducing the damage caused by hail to rapeseed and improving crop yield.
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万方数据
