Do Sunspot Cycles Affect Crop Yields

This document is part of the United States Department of Agriculture's (USDA)
Rural Development Publications collection. This collection includes publications
that relate to rural development in America, including from such series as Rural
Development Research Reports, Rural Development Perspectives, Agricultural
Economic Reports, and Agriculture Information Bulletins, as well as selected
Economic Research Staff Reports, Yearbook of Agriculture and the first 300 volumes
of Agriculture Handbooks.