The minimum transaction unit is 1 lot.
1 soybean is 10 ton, so it can be said that you need to buy 10 ton to buy one hand.
At the same time, because the futures trading adopts the margin system, assuming that the margin is 10% and the price of A 1009 (soybean 1 1009 contract) is 3840, then the first-hand money needed is 3840 */kloc-0 */.