Effect of Ridging Method and Planting Density on Yield and Quality of Organic Tobacco with Full Aroma Style

GUO Tao; LI Hai-jiang; LA Gui-xiao; YANG Tie-gang; MA Kun; MAO Duo-bin

doi:10.3969/j.issn.1004-3268.2014.09.010

Abstract：To develop optimal cultivation methods for organic tobacco with full aroma style,the effects of ridging method(one-row per ridge,two-row per ridge)and planting density(16 500 plant/ha,20 000 plant/ha)on yield and quality of tobacco were investigated by randomized plot experiment in full aroma style organic tobacco-growing base,Yexian county,Henan province. Compared with that in full inorganic fertilizer treatment,the yield decreased,while the rate of first class tobacco,the rate of first and middle class tobacco,and average price increased significantly. However,there was no difference in the rate of first class tobacco,the rate of first and middle class tobacco and average price among the four organic tobacco treatments,while the highest yield and income were obtained in the treatment of two-row per ridge and planting density of 20 000 plant/ha,reaching 2 351.45 kg/ha and 58 621.65 RMB/ha respectively.Moreover,compared with that in full inorganic fertilizer treatment,appearance quality,chemical components and sensory quality of tobacco improved.However there was no difference in appearance quality and chemical components among the organic tobacco treatments.Among the organic tobacco treatments,the sensory quality of tobacco in two-row per ridge and planting density of 20 000 pant/ha treatment was the best,while the worst was obtained in one-row per ridge and planting density of 20 000 pant/ha treatment.In a word,the cultivation method with two-row per ridge and planting density of 20 000 pant/ha was suitable for organic tobacco cultivation in Henan full aroma style zone in consideration of output and tobacco quality.