Yield gains in major U.S. field crops /
Smith, J. Stephen C.,editor.
Diers, Brian W.,editor.
Specht, James Eugene,editor.
Carver, Brett Frederick,1958-editor.
Includes bibliographical references.
Barley -- Cotton -- Cool-season forages -- Lettuce and spinach -- Edible grain legumes -- Maize -- Peanut -- Potato -- Rangeland and warm-season forage grasses -- Rice -- Sorghum -- Soybean -- Sugarbeet -- Sugarcane -- Sunflower -- Wheat.
Crop yields
Crop yields.