The farmer fertilizes rice and applies 1125 kg of chemical fertilizer to a rectangular paddy field 250 meters long and 200 meters wide. How many kilograms of fertilizer per hectare?
农民给水稻施肥，在一块长250米，宽200米的长方形稻田里施化肥1125千克．平均每公顷化肥多少千克？
<gadget id="calculator">200 / 10_000</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">250 * (1/50)</gadget>
<output>5</output>

<gadget id="calculator">1_125 / 5</gadget>
<output>225</output>

<result>225</result>