1) Soil testing

Author
Self, J. R
Series
Crop series. Soil volume no. 0.501
Publisher
Not Supplied
Pub. Date
Not Supplied
Language
English

2) Soil sampling

Author
Self, J. R
Series
Crop series. Soil volume no. 0.500
Publisher
Not Supplied
Pub. Date
Not Supplied
Language
English

3) Soil sampling: the key to a quality fertilizer recommendation

Author
Self, J. R
Series
Service in action volume no. 0.500
Publisher
Colorado State University Cooperative Extension
Pub. Date
1994.
Language
English

4) Soil test explanation

Author
Self, J. R
Series
Crop series. Soil volume no. 0.502
Publisher
Not Supplied
Pub. Date
Not Supplied
Language
English

5) Soil, water, and plant testing

Author
Self, J. R
Series
Crop series. Soil volume no. 0.507
Publisher
Colorado State University Cooperative Extension
Pub. Date
[2005]
Language
English