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| Washington, D. C. vy March 30, 1925 
REPORT OF THE NORTHERN GREAT PLAINS FIELD STATION FOR THE 
10-YEAR PERIOD, 1913-1922, INCLUSIVE 
By J. M. SrepuHens, Agriculiurist and Superintendent, RoBerRtT WI.Lson, W. P. 
Barrp, and J. T. Sarvis, Associate Agronomists, J. C. THYSELL, Assistant 
Agronomist, and T. K. K1Luanp, Scientific Aid, Office of Dry-Land Agricul- 
ture Investigations, and J. C. BRINSMADE, JR., Assistant Agronomist, Office 
of Cereal Investigations, Bureau of Plant Industry } 
CONTENTS 
Page | Page 
MemroduciiOMmeeoote. 9 suse 2 2 See 1) Agronomilcumvestigations 2-2. east ee 47 
7D UAPTDIND 5 ~ SS SaaS SE Be See 2 Rotation and tillage experiments_-_-______ 47 
SO eee ne ee ee ee 5 Experiments with forage crops__________- 7 
Arboricultural investigations _______________- 7 Varietal tests with corn ____-_____._____- 63 
Experimental test plantings____-_______- 7 Soil-moisture investigations______________ 65 
Cooperative shelter-belt demonstrations _ 11 Investigations with flax and cereals______ 65 
Summary and conclusions__-___________- 14 Cooperative grazing experiment-_____________ 70 
Horticultural investigations _________________ 15 Plan of the experiment__________________ 70 
PEO TINO LO Oyj ne ee ee ee a 16- Canings Onin ne, GA RN Oss 5 = een 7 
Ornamentals and landscape gardening___ 34 | Study of the native vegetation___________ 75 
PONE GINO UT Ces 2 ere een le ee 2 eo) 41 | Conclusions from the grazing experiment_ 7 
INTRODUCTION 
The purpose of this report is to discuss briefly the experiments 
conducted at the Northern Great Plains Field Station, located in 
Morton County, N. Dak., 2 miles south of Mandan. No attempt 
is made to describe the experiments in detail, but rather to present 
the lines and scope of the work at the station and give a summary of 
results obtained from the various experiments. The projects are 
grouped and divided into three departments: Arboriculture, horti- 
culture, and agronomy. The cooperative grazing experiment is a 
coordinate part of the agronomic work. The work and the results 
are reported separately by the men in charge of the respective 
departments. 
The territory adjacent to the station, which is typical of a large 
area of western North Dakota, was primarily a livestock country. 
1W. A. Peterson was superintendent of the station from the time it was organized until March, 1918. 
Max Pfaender was horticulturist from the time of the organization until September, 1919. F.E. Cobb 
assisted in the arboricultural investigations from June, 1915, to September, 1922, and from April, 1917, 
to October, 1919, inclusive, he was in charge of the work during the absence of Robert Wilson, who was on 
furlough in military service. Norman O. Henchel was assistant in arboriculture from June, 1917, to June, 
1920. Arthur W. Schultz assisted in the agronomic work from May, 1915, until his death in 1917, and R. S. 
Towle assisted in the agronomic work from August, 1917, to March, 1920. 
5381—25¢——1 
