Abstract
Abstract: As a new low volume sprayer, unmanned aerial vehicle (UAV) application is developing quickly worldwide. Alkyl ethyl sulfonate soluble concentrate is a kind of spray adjuvants for defoliants, which is widely used in cotton defoliant application. The aim of this study was to compare the droplet deposition, defoliation and boll opening of a UAV added with six dosages of alkyl ethyl sulfonate on the cotton. Addition with 4.2 g a.i./hm 2 (one-sixtieth of the recommended dosage in the field) alkyl ethyl sulfonate could significantly increase the droplets coverage rate, and improve defoliation and boll opening effects. Added with lower dosage alkyl ethyl sulfonate (4.2 g a.i./hm 2 and 8.4 g a.i./hm 2 ), the droplet distribution uniformity was much better than that of moderate (84 g a.i./hm 2 ) and high dosage (252 a.i./hm 2 ) of alkyl ethyl sulfonate. It could not only ensure the effects of defoliation and boll opening, but also reduce the environmental pollution by alkyl ethyl sulfonate. Keywords: defoliant, alkyl ethyl sulfonate dosage, droplet deposition, unmanned aerial vehicle DOI:  10.33440/j.ijpaa.20190202.33.  Citation: Xiao Q G, Du R, Zhou T T, Han X Q, Wang G B, Fu W. Effects of alkyl ethyl sulfonate dosage on cotton defoliation efficacy sprayed by UAV.  Int J Precis Agric Aviat, 2019; 2(2): 67–75.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Precision Agricultural Aviation
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
