Author : Robert K. Shepard
Publisher :
Page : 24 pages
File Size : 15,15 MB
Release : 1987
Category : Forest soils
ISBN :
Plots in seven eastern white pine sawlog stands were treated with nitrogen at rates of 0, 56, 112, and 224 kg/ha. After four years the largest increase in basal area growth, 0.31 dm2/tree, and volume growth, 13.0 m3/ha, occurred in plots that received 112 kg/ha. It appears that an application rate of 112 kg/ha may provide a real return of 15% or more in some stands.
Author :
Publisher :
Page : 114 pages
File Size : 37,31 MB
Release : 1987
Category : Agriculture
ISBN :
Author :
Publisher :
Page : 232 pages
File Size : 43,5 MB
Release : 1988
Category :
ISBN :
Author : Akira Osawa
Publisher :
Page : 518 pages
File Size : 32,60 MB
Release : 1986
Category : Aphididae
ISBN :
Author : Library of Congress. Exchange and Gift Division
Publisher :
Page : 864 pages
File Size : 23,6 MB
Release : 1990-05
Category : State government publications
ISBN :
Author : William D. Ostrofsky
Publisher :
Page : 40 pages
File Size : 18,15 MB
Release : 1995
Category : Forests and forestry
ISBN :
Author :
Publisher :
Page : 768 pages
File Size : 13,30 MB
Release : 1992
Category : Agriculture
ISBN :
Author : John Chin David Rutter
Publisher :
Page : 860 pages
File Size : 14,1 MB
Release : 1990
Category :
ISBN :
Author :
Publisher :
Page : 524 pages
File Size : 34,81 MB
Release : 1991-12
Category : Agriculture
ISBN :
Author : C. Latremouille
Publisher :
Page : 80 pages
File Size : 21,82 MB
Release : 2008
Category : Nature
ISBN :
