不同营养土配方对烤烟早生快发及产质量的影响

Effects of Different Nutritive Soil Formulas on Growth,Yield and Quality in Flue-Cured Tobacco

为探寻适宜水田烤烟栽培的营养土配方,以蘑菇土、腐殖酸、生物炭等为原料,研究了不同营养土配方对烤烟早生快发及产质量的影响。结果表明,不同营养土配方均能促进烤烟早生快发,增强根系生长活力,改善烟叶的外观质量,提高烟叶的经济效益;其中,以"常规营养土+腐殖酸10 g+生物炭50 g"的配方表现最好,下、中、上部烟叶的干重分别比对照增重1.04、1.59、1.15 g,产量、产值、均价、上等烟比例分别比对照增加9.04%、463.47元/667m2、1.4元/kg、8.8个百分点。

The mushroom soil, humic acid and biological carbon were used as raw materials in this study to explore the effects of different nutritive soil formulas on growth, yield and quality of tobacco leaf. The results showed that the nutritive soils could promote the growth of plant, the development of root system, and the appearance quality and economic benefit of tobacco leaf. And the optimum was the normal nutritive soil＋ humic acid 10g＋ biological carbon 50g, in which the dry weight of the lower, middle and upper leaves increased by 1.04 g, 1.59 g and 1.15 g, and the yield, output value, average price and first-class tobacco proportion rose by 9.04%, 463.47 RMB yuan/667m^2, 1.4 RMB yuan/kg and 8.8 percentage points, respectively, as compared with the CK.