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Publications by R. Campkin
Sources of Potassium Taken Up by Ryegrass From Some Soils of the North Island
New Zealand Journal of Agricultural Research
Soil Science
Crop Science
Animal Science
Plant Science
Zoology
Agronomy
Related publications
The Effective Relative Affinity for Magnesium and Potassium of Some Soils From the North Island, New Zealand
New Zealand Journal of Agricultural Research
Soil Science
Crop Science
Animal Science
Plant Science
Zoology
Agronomy
Description of Ryegrass Removed From New Zealand North Island Hill Country
New Zealand Journal of Agricultural Research
Soil Science
Crop Science
Animal Science
Plant Science
Zoology
Agronomy
Releasing Characteristics of Potassium in Some Coastal Soils of West Bengal
International Journal of Current Microbiology and Applied Sciences
Kinetic Release of Potassium Reserve in Some Calcareous Soils in Northern of Iraq
Mesopotamia Journal of Agriculture
Relation of Nonexchangeable Potassium and Magnesium to Development in Some Iowa Soils
The Kinetics of Nonexchangeable Potassium and Magnesium Release From Quebec Soils
Canadian Journal of Soil Science
Soil Science
Effect of Soil Properties on Forms of Potassium in Some Soils of Homs Governorate
Association of Arab Universities Journal of Engineering Sciences
Status of Potassium in Some Calcareous Soils of Egypt and Factors Affecting Its Forms
Annals of Agricultural Science, Moshtohor
Relative Performance of Strawberry Cultivars From California and Other North American Sources in Fumigated and Nonfumigated Soils
Journal of the American Society for Horticultural Science
Horticulture
Genetics
