Conservation Reserve Program Amendments Act of 2023 This bill amends the Conservation Reserve Program (CRP) of the Farm Service Agency to provide for the enrollment of citrus land in the program. CRP is a land conservation program that provides an annual rental payment to farmers in exchange for removing environmentally sensitive land from agricultural production and planting species that will improve environmental health and quality. Specifically, the bill allows the Department of Agriculture (USDA) to include cropland in the program that is otherwise ineligible if the land has been used to plant a citrus crop during the 10-year period preceding the date of the bill's enactment. USDA must enroll citrus land using existing continuous enrollment procedures. USDA may give priority to citrus land that is at risk of conversion or development, is of ecological significance, or is affected by huanglongbing (i.e., citrus greening, a bacterial disease spread by an insect that is known as the Asian citrus psyllida and feeds on citrus). The total acreage of citrus land enrolled in the conservation reserve must not exceed 100,000 acres for each of FY2024-FY2028. Further, the bill excludes citrus land from existing adjusted gross income limitations for payments or benefits under CRP.