Hotbed and propagating frame
By: [developed by Agricultural Engineering Research Division and Crops Research Division, Agricultural Research Service]
Series: Miscellaneous publication / United States Department of Agriculture -- no.       986
Publisher: U.S. Dept. of Agriculture
Published: 1965
Place of publication: Washington, D.C
Language: eng
Subjects: Hotbeds; Design and construction; Plant propagation; Equipment and supplies
Notes: "Issued February 1965."