crop yields Kitapları

Increasing world food output

The relation between yields and prices

Selected U.S. crop budgets

Potential crop production

Moisture storage and crop yields in the dryfarming areas of the Great Plains

Day length and crop yields

The profits from the use of fertilizers

Improvements in crop growing

Production practices and quality assessment of food crops

Crop yields from Illinois soil experiment fields in 1931 together with a general summary for the rotation periods ending in 1931

Losses in agriculture

Crop-weather models and their use in yield assessments

Field and seed crops

Principles of Crop Production

Crop yields from Illinois soil experiment fields in 1925

Crop rotation and productivity

Physiology and determination of crop yield

Projecting crop yields for the United States