Stem sawflies of economic importance in grain crops in the United States,

"Literature cited": p. 37-50.

Regional location of production of major field crops at alternative demand and price levels, 1975; a linear programing analysis,

Issued in cooperation with Iowa State University of Science and Technology, Agriculture and Home Economics Experiment Station, and the Center for Agricultural and Economic Development.

The influence of weather on crops, 1900-1930 : a selected and annotated bibliography /

Includes index.

The mineral composition of crops with particular reference to the soils in which they were grown : a review and compilation /

"The work represented by this publication was supported by the Bankhead-Jones research fund. It was initiated in the Bureau of chemistry and soils (now the Bureau of agricultural chemistry and engineering) and was later transferred to the Bureau of plant industry."--P. 1.

A Graphic summary of farm crops : (based largely on the census of 1940) /

Includes index.

Hearing to review food aid and agriculture trade programs operated by the U.S. Department of Agriculture and the U.S. Agency for International Development : hearing before the Subcommittee on Specialty Crops, Rural Development, and Foreign Agriculture of the Committee on Agriculture, House of Representatives, One Hundred Tenth Congress, first session, May 10, 2007.

"Serial no. 110-21."

Floriculture crops.

Some v. distributed to some depository libraries in microfiche, <1986-1998>

California vegetable crops.

Mode of access: Internet.