摘要
为探讨施肥量与密度对烟叶产、质量的关系,在开阳进行了施肥量与密度两因素5水平试验。结果表明:随着施肥水平的提高,烟株各部位叶片增长、增宽,产量、均价提高;中肥水平的品质最好。随着密度的增加,产量、均价递增,主茎变细,节距变长,叶片变小、变轻,品质稍有下降。在中低等肥力条件下,为兼顾产量、品质和效益,肥密配比以1 000株/667m2和6～7 kg/667m2的组合为佳。
In order to reveal the relation between the N levels, density and tobacco yield and quality, two factors and five level trails were conducted at Kaiyang. The results showed that along with the rise of fertilization level, the leaves at various positions of the plant lengthened and broadened, hence the yield and average price increased. The quality was the best at the medium fertilization level. Along with the rise of density, the yield and average price increased, but the main stems became thinner, internodes longer, leaves smaller, hence the quality decreased slightly. Under the condition of mid-low fertility, the combination of the fertilization amount and density ratio of 6-7kg pure N per 666.7 m2 and 1000 plants per 666.7 m2 was optimum so as to give consideration to the yield, quality and efficiency.
出处
《吉林农业科学》
CSCD
2008年第3期22-26,共5页
Journal of Jilin Agricultural Sciences
基金
专卖局资助"贵州山地特色优质烟叶研究开发"(贵烟2007-04)
关键词
烤烟
优质适产
施肥量
密度
最优组合
Flue-cured tobacco
Fine quality and proper yield
N levels
Density
Optimum combination
