芹菜心腐病在保护地中易发病,生理性缺硼和钙是造成心腐病的主要原因。一般情况下缺硼会引起缺钙。芹菜是需要肥料较多的蔬菜,但也会发生因肥料浓度过浓,如氮、钾肥施入过多,或土壤中盐分浓度过高,或高温、低温、干旱而造成芹菜对硼和钙素吸收受到阻抑,产生心腐病。根腐病、根结线虫病的发生,可造成根系的吸收钙素能力降低。一、症状识别发病初期,芹菜心叶生长点的柔嫩组织由绿色变成褐色,然后扩展到心叶,最后心叶全部枯死。叶脉间变褐,叶缘细胞逐渐坏死,呈黑色、褐色,最后心部腐烂。二、防治措施 Heart-rot celery in the protection of the disease prone to physiological boron and calcium deficiency is the main cause of heart rot. In general, boron deficiency can cause calcium deficiency. Celery is the need for more fertilizers of vegetables, but also occur because of excessive concentration of fertilizers, such as nitrogen, potassium fertilizer applied too much, or the salt concentration in the soil is too high, or high temperature, low temperature, drought caused by celery on boron and calcium Absorption is suppressed, resulting in heart rot. Root rot, the occurrence of root-knot nematodes, can reduce the capacity of the root absorption of calcium. First, the early symptoms of symptom onset, celery heart growth of soft tissue leaves turned from green to brown, and then extended to the heart leaves, heart leaves all the last dead. Browning between the veins, leaf marginal cells gradually necrosis, black, brown, the last heart decay. Second, prevention and control measures