脐橙继第2次生理落果(从蜜盘处脱落)之后,还有一次落果量颇大的第3次落果,一般称为后期落果,通常导致减产2～3成,严重时可达5成左右。现将我们对脐橙后期落果的原因及相应防治方法的初步研究结果介绍于后。 1.脐部黄化 在我地脐黄从6月开始,7月进 Following the second physiological fallout (falling off from the honey plate), the navel orange also has a third falling fruit, which is often referred to as the late fall fruit, which usually leads to a decrease of 2 to 3% in the case of fruit drop and about 50% in severe cases . Now we on the navel orange fall after the cause and the corresponding prevention and treatment of the preliminary results of the study introduced later. 1. umbilical yellow in my umbilical yellow from June, July into