Author : Earl George Davis
Publisher :
Page : 1240 pages
File Size : 12,99 MB
Release : 1945
Category : Agriculture
ISBN :
Author : Kenneth G. Renard
Publisher :
Page : 412 pages
File Size : 45,26 MB
Release : 1997
Category : Geophysical prediction
ISBN :
Introduction and history; Rainfall-runoff erosivity factor (R); Soil erodibility factor (K); Slope length and steepness factors (LS); Cover-management factor (C); Support practice factor (P); RUSLE user guide; Coversion to SI metric system; Calculation of EI from recording-raingage records; Estimating random roughness in the field; Parameter values for major agricultural crops and tillage operations.
Author :
Publisher :
Page : 404 pages
File Size : 13,5 MB
Release : 1949
Category : Agriculture
ISBN :
Set includes revised editions of some issues.
Author :
Publisher :
Page : 690 pages
File Size : 36,11 MB
Release : 1944
Category : Soil conservation
ISBN :
Author : Gunnar M. Brune
Publisher :
Page : 292 pages
File Size : 11,82 MB
Release : 1948
Category : Sedimentation and deposition
ISBN :
Author : Thomas Leigh Copley
Publisher :
Page : 48 pages
File Size : 37,75 MB
Release : 1948
Category : Erosion
ISBN :
This publication treats briefly of the nature and extent of erosion on these tobacco lands and gives some practical mechanical methods of soil protection, which safeguard the specific qualities of leaf demanded by the tobacco trade.
Author :
Publisher :
Page : 32 pages
File Size : 30,94 MB
Release : 1949
Category : Agriculture
ISBN :
Author : Edward Counselman Higbee
Publisher :
Page : 694 pages
File Size : 50,91 MB
Release : 1948
Category : Agriculture
ISBN :
Interest in these plants, in addition to their effectiveness against numerous pests, is also because commercial pyrethrum and rotenone insecticides derived from these plants are also comparatively nontoxic to man and other warm-blooded animals. They may be used with safety in the household, for livestock dips and sprays, and on garden vegetables, fruits and canning crops.
Author :
Publisher :
Page : 1152 pages
File Size : 10,2 MB
Release : 1949
Category : Agriculture
ISBN :
Author :
Publisher :
Page : 108 pages
File Size : 20,14 MB
Release : 1945
Category :
ISBN :
