1) A soil study: Part III,Soil

Author
Headden, William P
Series
Bulletin volume 65
Publisher
Agricultural Experiment Station of the Agricultural College of Colorado
Pub. Date
1901.
Language
English

2) Alfalfa

Author
Headden, William P
Series
Bulletin volume 35
Publisher
State Agricultural College, Agricultural Experiment Station
Pub. Date
1896.
Language
English

3) A soil study: Part I,Crop grown, sugar beets

Author
Headden, William P
Series
Bulletin volume 46
Publisher
State Agricultural College, Agricultural Experiment Station
Pub. Date
1898.
Language
English

4) The nitrate question in Colorado: a review for the farmer

Author
Headden, William P
Series
Bulletin volume 299
Publisher
Colorado Experiment Station
Pub. Date
1925.
Language
English

5) Nitrates in the soil: an explanation of so-called "Black Alkali" or "Brown Spots"

Author
Headden, William P
Series
Bulletin volume 160
Publisher
Agricultural Experiment Station of the Agricultural College of Colorado
Pub. Date
1910.
Language
English

6) A soil study: Part II,Crop grown, sugar beets

Author
Headden, William P
Series
Bulletin volume 58
Publisher
Agricultural Experiment Station of the Agricultural College of Colorado
Pub. Date
1900.
Language
English

7) A peculiar soil condition in the San Luis Valley

Author
Headden, William P
Series
Bulletin volume 286
Publisher
Colorado Experiment Station
Pub. Date
1923.
Language
English

8) The fixation of nitrogen in some Colorado soils

Author
Headden, William P
Series
Bulletin volume 155
Publisher
Agricultural Experiment Station of the Agricultural College of Colorado
Pub. Date
1910.
Language
English

9) The fixation of nitrogen in Colorado soils: the distribution of the nitrates and their relation to the alkalis

Author
Headden, William P
Series
Bulletin volume 186
Publisher
Agricultural Experiment Station of the Agricultural College of Colorado
Pub. Date
1913.
Language
English

10) Fixation of nitrogen in Colorado soils: occurrence of nitrates on rocks

Author
Headden, William P
Series
Bulletin volume 277
Publisher
Agricultural Experiment Station of the Agricultural College of Colorado
Pub. Date
1922.
Language
English

11) The fixation of nitrogen in some Colorado soils: a further study

Author
Headden, William P
Series
Bulletin volume 178
Publisher
Agricultural Experiment Station of the Agricultural College of Colorado
Pub. Date
1910.
Language
English

12) The fixation of nitrogen in Colorado soils: a study of the Wellington district, Larimer County, Colorado

Author
Headden, William P
Series
Bulletin volume 258
Publisher
Agricultural Experiment Station of the Agricultural College of Colorado
Pub. Date
1921.
Language
English