番茄脐腐病是由于水分供应失调和缺钙而引起的一种生理病害。番茄得到充足的水分，正在旺盛生长时，土壤里的水分突然减少、干燥，致使青果脐部严重失水而发生组织坏死，此外，在植株生长过程中，常因钙素不足，引起果脐周围细胞生理紊乱，失去控制水分的能力而发病。病斑... Umbilical rot disease of tomato is a physiological disease caused by imbalance of water supply and calcium deficiency. Tomato sufficient moisture, is in strong growth, the soil suddenly reduce the water, dry, resulting in serious failure of fruit umbilical tissue necrosis occurred, in addition, the plant growth process, often due to insufficient calcium, causing around the umbilicus Physiological disorders, loss of ability to control the water and disease. Lesions ...