敌草快航空施药技术对水稻催熟干燥的应用研究

The Effect of Aviation Application Technology of Diquat on Rice Ripening and Drying

以龙粳31为试验材料,研究无人机喷施敌草快对水稻催熟干燥的应用效果。结果表明,敌草快可以明显加速水稻籽粒脱水,150g/L敌草快使用量1500g/hm^2处理7d后水稻籽粒含水量15.2%,与对照相比,籽粒含水量减少8.7%,对发芽率和千粒重无影响,并明显降低垩白粒率,由18%降至11%。同时提高稻米蛋白质含量,由7.0%提高到7.55%,且安全无残留。

Taking the rice variety of the Longjing 31 as the experimental material, study the application effect spraying diquat with UAV on rice ripening and drying. The results showed that diquat can significantly accelerate rice grain dehydration, and the water content of rice grain was 15.2% after treatment with 150 g/L of diquat for 1 500 g/hm^2 for 7 d. Compared with the control, the water content of rice grain decreased by 8.7%, which had no effect on germination rate and 1 000-grain weight, and significantly reduced chalky grain rate from 18% to 11%. At the same time, the protein content of rice increased from 7.0% to 7.55%, and it is safety without residue.