PROBLEM TO BE SOLVED: To provide a fertilization method that is reduced in fertilizer application unevenness and is labor-saving in a paddy field.SOLUTION: A fertilizing device concerning the present invention comprises a liquid fertilizer preparation unit (first container) for charging an inexpensive solid fertilizer generally circulated in a wide area in a container positioned in the upper part and mixing it with water to convert into liquid, a liquid fertilizer storage unit (second container) for temporarily reserving the fertilizer converted into the liquid in a container positioned in the lower part through a connector such as a hose, and further a flow rate controlling unit for releasing it to the outside from the liquid fertilizer storage unit through a flow control valve. The fertilizing liquid flowing out from the flow rate controlling unit is supplied into the paddy field after being dissolved in irrigation water in an irrigation water square of a paddy field side through a liquid fertilizer guide pipe such as the hose. The fertilizer being a solid at first is made into the liquid by this device and is supplied into the paddy field along with the irrigation water at a constant concentration and a constant flow rate, and thereby is spread out in every corner of the paddy field along with the stretch of the irrigation water. As a result, the fertilizer can uniformly be sprayed without unevenness in the paddy field.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】水田において、肥料散布ムラの少ない、省力的な施肥方法を提供すること。【解決手段】本発明に係る施肥装置は、上部に位置する容器内において一般的に広く流通する安価な固形肥料を投入し、水と混合して液体化させる液肥調製部(第一容器)と、液体化された肥料をホース等の連結具を介して下部に位置する容器内で一時的に溜め置く液肥貯留部(第二容器)、さらに液肥貯留部から流量制御バルブを介して外部に放出される流量調節部から構成される。流量調節部から流出した液体肥料はホース等の液肥誘導管を介して水田脇の灌漑水枡で灌漑水に溶けたのち水田内へ供給される。この装置により、当初固体であった肥料は液体化され、一定の濃度、一定の流量で灌漑水とともに水田内へ供給されるので、灌漑水の広がりとともに水田の隅々にまで行き渡る。これにより、水田内にムラなく均一に肥料を散布することが可能である。【選択図】図1
