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UNITED STATES DEPARTMENT OF AGRICULTURE 
DEPARTMENT BULLETIN No. 1337 
Washington, D. C. 
May, 1925 
WORK OF THE NORTHERN GREAT PLAINS FIELD STATION IN 1923 
By J. M. Stephens, Agriculturist; Robert Wilson, W. P. Baird, and J. T. 
Sarvis, Associate Agronomists; J. C. Thysell, Assistant Agronomist; and T. K. 
KiLLAND, Scientific Aid, Office of Dry-Land Agriculture Investigations, Bureau 
of Plant Industry 
CONTENTS 
Page 
Introduction 1 
Arboricultural investigations 2 
Cooperative shelter-belt demonstrations... 2 
Experimental tree plantings 6 
Horticultural investigations. S 
Pomological investigations , 8 
Olericultural investigations.. 11 
Ornamental horticulture 12 
Page 
Agi'onomic investigations 13 
Rotation and tillage experiments 14 
Cooperative cereal and forage-crop investi- 
gations 15 
Conclusions from agronomic investigations. 15 
Grazing investigations 16 
INTRODUCTION 
B3' J. M. Stephens, Superintendent 
This bulletin gives the results of the investigations conducted in 
1923 at the Northern Great Plains Field Station, which is located 
near Mandan, N. Dak., in the semiarid Great Plains area. The 
results that have been attained since the station was established in 
1913 are summarized in presenting those of the current year. 
The work at this station includes experimental field tests in the 
growth of trees, shrubs, fruits, vegetables, and field crops; cooperative 
shelter-belt investigations with farmers on the northern Great Plains ; 
and a series of pasture experiments to study the management of 
native and cultivated grassland for grazing beef cattle. 
The investigations are organized under four general projects: 
Arboriculture, horticulture, agronomy, and grazing. Each project 
is under the direct control of a scientifically trained investigator, 
working under the general supervision of the station superintendent 
and the agriculturist in charge of the Ofiice of Dry-Land Agriculture 
Investigations, Bureau of Plant Industry. 
The personnel of the station organization is as follows : 
Administration: J. M. Stephens, Agriculturist and Superintendent; F. W. 
Mason, Senior Clerk; Arboriculture: Robert Wilson, Associate Agronomist in 
Charge; Horticulture: W. P. Baird, Associate Agronomist in Charge; T. K. 
Killand, Scientific Aid; Agronomy: J. T. Sarvis, Associate Agronomist in Charge; 
J. C. Thysell, Assistant Agronomist; J. C. Brinsmade, jr., Assistant Agronomist 
in Charge of Cooperative Cereal Investigations; Grazing: J. T. Sarvis, Associate 
Agronomist in Charge. 
38ll4-25t— Bull. 1337 1 
