I need agronomist consultation for Farm business. Frequent consultation

I have a 50,000m2 farm in Kuwait, Which is. A hot arid climate. The soil type is alkaline (pH 8) and texture is sandy loam. I need an agronomist to assist in: -Soil amendment plan - Fertilization plan to reach maximum yield of crops (potato) - current yield is similar farms is 25ton/ha where other countries reach up to 80ton/ha. -follow up with any consultation requirements related to the farm business.