丘陵石山地区农业航空作业—低空喷施甘蔗增糖增产液的效应

The effect of agricultural aviation operations in Karst hilly region —flew low spraying sucrose-yield promoter for sugar cane cultivation

应用三角固定翼飞机在丘陵蔗区甘蔗生长后期叶面喷施甘蔗增糖增产液,喷施面积22hm2,在试验区中部留1hm2面积蔗区不喷甘蔗增糖增产液。结果表明:喷施效率和准确率大大提高,20min内完成约20hm2面积喷施甘蔗增糖增产液;飞机喷施的增糖效果明显,喷施后一个月甘蔗蔗糖分比对照增加了0.92,蔗汁锤度提高了0.6,重力纯度提高了1.68,降低了甘蔗还原糖分0.08(以上均为绝对值)提高甘蔗产量5%。调查发现:次年宿根蔗的发株数比对照增加26.14%,甘蔗枯心苗和黑穗病苗比对照少22.18%。

Application of low spraying sucrose-yield promoter for sugar cane cultivation by triangle fixed wing aircraft during the late growth period in hilly region, with spraying area 22 hectares, comparing the test area of 1 hectare in the central part without spraying sucrose-yield promoter, the results show that, firstly, the efficiency and accuracy are greatly improving by spraying, with completing about 20 hectares of sugar cane cultivation area within 20 minutes; Secondly, the application effect of sucrose increasing is obviously by spraying. Compare with testing area, the following rates of sugar cane are increasing： sucrose 0.92, sugarcane -juice brix 0.6, gravity purity 1.68, meanwhile, the reductive sugar is reducing 0.08 （above all are the abso- lute value）, the sugar cane yield is increasing 5%. The survey found that： compare with testing area, the rate of the ratoon cane is increasing 26.14%, while the rate of disease seedlings of withered heart and smut is decreasing 22.18%.