Effects of spraying different concentrations of SAH by UAV on cotton growth and development
[Objective]To study the regulation effect of different knot-cut amide concentrations on cot-ton growth,and to provide a scientific basis for the construction of light and simple cultivation.[Methods]Under the condition of the same dosage,the concentration concentration was controlled A total of 6 water vol-ume were set,respectively 7.5(C1)、15(C2)、22.5(C3)、30(C4)、37.5(C5)and 45(C6)L/hm2,to analyze the effects of different acetamine concentrations on the growth and development of cotton.[Results]The spra-ying of low concentration(C5 and C6)will prolong the growth period of cotton and make the cotton mature late;the cotton plant treated with medium concentration(C3 and C4)is the best,in which the C4 treatment has the highest yield;the high concentration of acetamide(C1 and C2)will advance the cotton growth period,shorten the growth period,promote the growth of peach,and reduce the single bell weight of cotton.[Conclu-sion]In the use of cotton in southern Xinjiang,the control effect of the water amount was 30 L/hm2,and the yield reached 2,762.6 kg/hm2.
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