论文部分内容阅读
通过盆栽和大田试验 ,研究了施钾和 AM真菌对烤烟产量、品质的影响。结果表明 ,在不同施钾水平下 ,接种 AM真菌对烟叶产量、品质具有明显的影响。接种 AM真菌具有提高宿主产量的功能 ,且菌根菌与施钾量二者之间存在最佳组合关系。施钾和 AM真菌对不同叶位烟叶干重的影响差异显著 (P<0 .0 1) ,但不同组合间差异较复杂 ,随叶位、施钾量不同而有区别。施钾量为 0 .75～ 1.12 5 g· kg- 1 时 (盆栽试验 ) ,接种 AM真菌的烤烟可获得较高产量和较佳品质的烟叶 ;施钾量为 6 7.5～ 10 1.2 5 kg/ hm2 时 (大田试验 ) ,接种 AM真菌的烤烟单株产量、每公顷产量最高 ,且超过了在 135 kg/ hm2 施钾水平下对照株的产量 ,还可以提高每公顷产值和中上等烟比例。
Pot and pot experiments were conducted to study the effects of potassium and arbuscular mycorrhizal fungi on yield and quality of flue-cured tobacco. The results showed that inoculation AM fungi had obvious effects on the yield and quality of tobacco leaves under different K levels. Inoculation of AM fungi has the function of increasing the yield of the host, and there is an optimal combination relationship between the AM fungi and the K application rate. The effects of applying K and AM fungi on the dry weight of leaf at different leaf positions were significantly different (P <0.01), but the differences among different combinations were more complicated, which differed with leaf position and K application rate. When potash application was 0.75 ~ 1.12 5 g · kg-1 (pot experiment), the flue-cured tobacco with AM fungi could obtain higher yield and better quality tobacco; the potassium application was 6 7.5 ~ 10 1.2 5 kg / hm2 (field experiment), the yield per plant per hectare of flue-cured tobacco with AM fungi inoculated with AM fungi exceeded the yield of control plants at 135 kg / hm2 potassium level, and the output value per hectare and the proportion of middle-high smoke .