“…As a matter of fact, human harvesting or stocking always happens in a short time or instantaneously, hence the continuous action of human should be replaced. Recently, impulsive differential equations have been extensively used to the models in chemistry, engineering, biology, physics and other sciences, with particular emphasis on population dynamics [7,14,[22][23][24], and more complex models are developed and applied to the field of agricultural management [10,16,17,19,20].…”