The invention discloses a
crop cultivation device facilitating
plant spacing adjustment, and belongs to the technical field of
crop cultivation. The
crop cultivation device can indirectly control a cultivation
floating platform to adjust the
plant spacing through an adjusting iron block by introducing a hydroponic mode and based on the suspension characteristic of the cultivation
floating platform, the
crop cultivation device is very convenient, and absorption of nutritional ingredients is more effective; meanwhile, a specially-arranged sensing floating ball can sense the absorption condition of a
nutrient solution, the density is reduced after nutritional ingredients are consumed to a certain degree, the sensing floating ball sinks to pull a supplementing ball bin to release special nutrients, and the special nutrients are received and increased by the cultivation
floating platform; and then, the cultivation floating platform also gradually sinks, so that the roots of the crops can absorb nutritional ingredients deposited at the water bottom, finally, after the cultivation floating platform is in direct contact with the water bottom, a multi-section ejector rod triggers the
release action of nutrients to restore the density, then the cultivation floating platform and the sensing floating ball are reset again to start normal cultivation, the cultivation cost of the crops can be effectively controlled, and the
absorption effect on the nutritional ingredients is improved.