论文部分内容阅读
通过气候条件、施肥水平及栽培制度与烟草赤星病关系研究,结果表明:赤星病发生最适宜的温度为25~31℃,相对湿度为70%以上。磷肥和钾肥显著降低赤星病的发生,最适配比为N:P:K=1:1;2或1;2:2。轮作尤其是2。(年)以上与非茄科作物轮作,可显著减轻赤星病的发生。
The results showed that the most suitable temperature for the occurrence of brown spot disease was 25 ~ 31 ℃ and the relative humidity was above 70% through the climatic conditions, the fertilization level and the cultivation system. Phosphate and potassium fertilizer significantly reduced the occurrence of brown spot disease, the most suitable ratio of N: P: K = 1: 1; 2 or 1; 2: 2. The rotation is especially 2. (Years) and non-Solanaceous crop rotations, can significantly reduce the occurrence of brown spots.