兴烟1号新品系综合配套栽培技术研究

Research on the Comprehensive Cultivation Technique of New Tobacco Line-Xingyan No.1

[目的]初步筛选出新品系兴烟1号适宜的栽培技术组合,为黔西南烟区优质烤烟生产提供理论依据。[方法]采用4因素3水平正交试验研究肥料配比、施肥量、种植密度和留叶数对新品系兴烟1号产量和产值的影响,筛选出其适宜的栽培技术组合。[结果]在当地,新品系兴烟1号形态效果最好的栽培技术组合为:N∶P2O5∶K2O配比1.01∶.5∶2.5,施纯N 90.0 kg/hm2,种植密度为12 000株/hm2,有效留叶数为30片/株;产量效果最好的栽培技术组合为:N∶P2O5∶K2O配比1.0∶1.5∶2.5,施纯N 90.0 kg/hm2,种植密度为14 250株/hm2,有效留叶数40片/株。综合评价,新品系兴烟1号适宜的栽培技术组合为:N∶P2O5∶K2O配比1.01∶.5∶2.5,施纯N 90.0 kg/hm2,种植密度12 000株/hm2,有效留叶数30片/株。[结论]该配套栽培技术组合有利于提高经济效益。

[ Objective] The theoretieal basis of good-quality tobacco production in southwestern Guizhou was provided based on the research on the cultivation technique of new tobacco line Xingyan No. 1. [ Method ] The orthogonal test of 4 factors： the ratio of fertilizers, the fertilization amount, the planting density and the number of leaf left of the new tobacco line, impacting its yield and productive value was conducted at 3 levels, and the appropriate combination of eultivation technique for it was seleeted. [ Results ] At the local, the best combination of cultivation technique for the morphological character of the tobacco line was： the ratio of N：P2 O5：K2O was 1.0：1.5：2.5; the application of pure N, 90.0 kg/hm^2 ; the planting density, 12 thousand plants/hm^2 and the number of effective remaining leaf, 30 leaves/plant. The best combina- tion of cultivation technique for the yield character of the tobacco line was： the ratio of N： P2O5：K20 was 1.0：1.5：2.5; the application of pure N, 90.0kg/hm^2, the planting density, 14 250 plants/hm^2 and the number of effective remaining leaf, 40 leaves/plant. The appropriate culti- vation technique of new tobacco line Xingyan No. 1 was combination： the ratio of N：P2O5：K20 was 1.0：1.5：2.5, the application of pure N, 90.0 kg/hm^2 ; the planting density, 12 thousand plants/hmz and the number of effective leaf left, 30 leaves/plant. [ Conclusion] The combination of cultivation technique helped to improve economic efficiency.