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为有效合理施用钼肥,通过盆栽和田间试验研究了钼素营养对烤烟不同性状指标的影响和土壤有效钼的临界值。结果表明,施钼能提高烟叶产量,改善和提高烟叶品质。在盆栽试验条件下,对于烟叶产量性状的土壤有效钼临界值约为0.30 mg/kg,对于烟叶油分性状的土壤有效钼临界值约为0.10 mg/kg。在大田试验条件下,对于烟叶产量性状的土壤有效钼临界值为0.15 mg/kg,对于上等烟和杂色烟性状的土壤有效钼临界值均约为0.20 mg/kg。
In order to effectively and reasonably apply molybdenum fertilizer, the effects of molybdenum nutrition on the index of different traits and the critical value of soil available molybdenum were studied by pot and field experiments. The results showed that the application of molybdenum could increase the yield of tobacco and improve and improve the quality of tobacco. The soil available molybdenum threshold for tobacco leaf yield was about 0.30 mg / kg and the available molybdenum threshold for tobacco leaf oil content was 0.10 mg / kg under pot experiment. The available molybdenum threshold for the yield traits of tobacco leaves was 0.15 mg / kg under field test conditions, and 0.20 mg / kg for the upper and lower variegated tobacco traits.