1.
Study of the Influence of Physical Soil Factors and of Various Fertilizer Chemicals on the G...
by Pember, Frederick Russell, ...
ISBN: 9781276626354
List Price: $18.75
2.
Nitrogen Content and Yield of Crops As Affected by Different Nitrogenous Manures, Issues 142...
by Hartwell, Burt Laws, Freder...
ISBN: 9781279795484
List Price: $15.75
3.
Further Soil Tests in Paraffined Wire Baskets
by Hartwell, Burt Laws, Freder...
ISBN: 9781279908860
List Price: $14.75
4.
Study of the Influence of Physical Soil Factors and of Various Fertilizer Chemicals on the G...
by Pember, Frederick Russell, ...
ISBN: 9781346981130
List Price: $21.95
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Feeding Power of Certain Cereals, and Their Response to Fertilizer Ingredients
by Hartwell, Burt Laws, Freder...
ISBN: 9781347839201
List Price: $19.95
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Influence of Crop Plants on Those Which Follow, II
by Hartwell, Burt Laws, G E Me...
ISBN: 9781354112267
List Price: $21.95
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Feeding Power of Certain Cereals, and Their Response to Fertilizer Ingredients
by Hartwell, Burt Laws, Freder...
ISBN: 9781278356365
List Price: $15.75
8.
Studies by Means of Both Pot and Solution Culture of the Phosphorus and Potassium Requiremen...
by Pember, Frederick Russell
ISBN: 9781248476390
List Price: $17.75