论文部分内容阅读
研究表明 ,涂园大白菜干烧心病的发生为害与气候、品种、土壤盐碱度、肥水管理、栽培技术等因子有关 ,高温干旱天气是干烧心病暴发成灾的主导条件 ,水是问题的关键。品种间抗性差异较大 ,并可因环境条件变化而变化。选择适宜的播种期、选用抗病品种、采取设施供水是预防干烧心病的关键性技术。从灾变的主导条件及防治的有效性分析 ,“缺水生长”和营养吸收障碍导致代谢失常是干烧心病发生的主要病因。
The research shows that the damage of dry-heart disease of Chinese cabbage is related to climate, breed, soil salinity, fertilizer and water management, cultivation techniques and other factors. High-temperature and dry weather are the main conditions leading to the disaster of dry heart disease, and water is a problem The essential. Variety between the larger differences, and changes due to environmental conditions and changes. Select the appropriate sowing date, the selection of disease-resistant varieties, water supply facilities to prevent dry heart disease is the key technology. From the dominant conditions of catastrophe and the analysis of the effectiveness of prevention and control, “dehydration growth” and malnutrition caused by metabolic disorders are the main causes of heartburn.