#$%^&*AU2020102198A420201022.pdf#####ABSTRACT The present invention discloses a cultivation method for promoting the development of the root system in the early-growth stage of the flue-cured tobacco, which comprises the steps of soil preparation, fertilization, ridging, film mulching and transplanting. The present invention establishes a cultivation method for promoting the development of the root system in the early-growth stage of the flue-cured tobacco on the basis of long-term tests and demonstrations. The cultivation method promotes the early growth and quick tiller of the tobacco root system during the root extension period, and it promotes the coordination of root growth and plant growth, therefore it enhances the ability of the tobacco plants to resist drought, improves the quality and grade of the flue-cured tobacco, which has a high value for popularization.1/1 Implementation Type Length(cm) Surface Average Volume(cm3 ) n site area(cm2 ) diameter(mm ) Jiaoyuan This 528.29+186.4 991.93+90.44 6.48+2.83 163.80+84.85 Town, Xuanen invention 9 County, Enshi Prefecture, Conventiona 5.7.19+29.02 868.76+23.41 5.47+0.46 118.84+13.18 China 1 method Huangliang This 533.08+167.1 926.27+53.32 10.82+4.36 253.42+115.4 Town, invention 1 5 Xingshan County, Conventiona 526.37+88.42 757.71+35.29 7.72+2.44 147.31+52.95 Yichang City, 1 method China Hubeikou This 564.20+116.8 929.48+274.1 8.97+5.27 226.51+42.62 Town, Yunxi invention 5 8 County, Shiyan City, China Conventiona 514.93+124.0 869.20+110.2 7.49+1.77 163.18+43.93 1 method 7 4 Root growth of flue-cured tobacco FIG, 1
