Effect of Chemical Dehydrating Agents on Mechanical Harvest Yield of Broad Bean and Analysis of its Residual Content
In order to evaluate the suitable dehydrating agents for the mechanized harvest of broad bean,the dehydrating effect,yield and residue of the three dehydrating agents were determined by field experiment using Qingcan 14 as material.The results showed that different dewatering agents had different effects on the dewatering effect,yield and residue of broad bean.Among them,treatment 2 had the best effect,the dehydra-tion effect on 3 d was 90％,and the dehydration effect on 5 d was 100％.100 grains weight and the yield were the highest,which were 215.30 g and 5 357.86 kg/hm2,respectively,with an increase of 7.31％compared with the control.The pesticide residues in broad bean seeds and plants reached the national standard.The de-hydration effect of treatment 3,3 d was 80％,and the dehydration effect of 5 d was 100％.The 100 grains weight and yield were 208.31 g and 5 216.72 kg/hm2,respectively.The residues in the seed and plant of broad bean reached the national standard.
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