This report is the ninth in an annual series of economic surveys of New Zealand wheatgrowing farms. These surveys have been undertaken by the Agricultural Economics Research Unit at Lincoln College on behalf of the Wheatgrowers Sub-Section of Federated Farmers of New Zealand Inc. Specific attention has been focused on the physical characteristics of wheatgrowing farms, the area of wheat and other crops sown, wheat yields, management practices and costs and returns for the 1984-85 wheat crop. An attempt has been made to allocate plant and machinery overhead costs to the wheat enterprise on a current cost basis. A comparison of this information with past surveys enables a more comprehensive profile of the industry to emerge.