Fertilizer attachment for tree-planting machine
Subtitle: a progress report
By: R.W. Starostka, R.E. MacBride, and W.C. Hulburt
Contributors: MacBride, R. E.; Hulburt, W. C. (Walter Clare), 1910-1992; United States. Agricultural Research Service
Series: ARS -- 42-70; ARS 42 -- 70.
Publisher: U.S. Dept. of Agriculture, Agricultural Research Service
Published: 1962
Place of publication: Washington, DC
Language: eng
Subjects: Planters (Agricultural machinery); Fertilizer equipment; Tree planting; Trees; Fertilizers
Notes: Caption title.

"September 1962."

"The U.S. Department of Agriculture and W.R. Grace and Company are cooperating in a study to test fertilizers designed expressly for silviculture and to develop an attachment to the tree-planting machine for applying the fertilizers at planting time."

Includes bibliographical references.