Mr . Black , when is the earliest shipment you can make ?   In April or early May .   I am afraid shipment by early May would be too late for us . Our customs formalities are quite complicated , and it takes time to distribute the goods to the farmers in our country . The fertilizers must be delivered before April , or else we can't be in time for the spring sowing .   In that case , we will have to improve one month further on the time . Now is Jan . If the fertilizers should be shipped before the end of March , only 2 months are left . The time is too limited . 