Effect of Different Planting Densities on Yield and Quality of Cigar Filler Tobacco in Jinsha River Basin of Zhaotong
In order to explore the optimal planting density of cigar filler tobacco variety in Jinsha River basin of Zhaotong,field comparison test was conducted with'Yunxue 39'as the test material,and three different densities of row spacing of 110 cm,plant spacing of 35 cm,40 cm and 45 cm.The effects of different planting density treatments on the growth period,botanical characters,agronomic characters,disease resistance,tobacco appearance quality,chemical composition and yield quality of'Yunxue 39'were studied.The results showed that when the planting density was 110 cm row spacing and 40 cm plant spacing,'Yunxue 39'had the best field agronomic traits,lower natural incidence in the field,more suitable appearance quality and output value of fresh tobacco leaves,and the best quality of tobacco leaves after drying.The total nitrogen content,chlorine and potassium ratio were similar to the cigar filler tobacco varieties from Colombia,Nicaragua and other high-quality cigar producing areas.The highest content of abiethanol was 0.09 mg/g.Therefore,the suitable planting density for'Yunxue 39'in Jinsha River basin of Zhaotong City is 110 cm row spacing and 40 cm plant spacing.
NETL
NSTL
万方数据
