There is a rectangular paddy field with a length of 600 meters and a width of 400 meters on the farm. If 200 kilograms of fertilizer is applied per hectare, how many kilograms of fertilizer should be applied to this land in total?
农场有一片长600米，宽400米的长方形稻田，如果每公顷地要施肥200千克，这块地一共要施肥多少千克？
<gadget id="calculator">400 / 10_000</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">200 * 600 * (1/25)</gadget>
<output>4_800</output>

<result>4_800</result>