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John Walter Leather
12 cilt bulundu.
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Experiments on the availability of phosphates and potash in soils
John Walter Leather · Thacker, Spink
57 sayfa · 1907
Soil, analysis / Potassium Compounds / Phosphates / Agricultural Chemistry
Evaporation from a plain water surface
John Walter Leather · Published for the Imperial Department of Agriculture in India by Thacker, Spink & Co.
15 sayfa · 1913
Evaporation
The pot-culture house at the Agricultural Research Institute, Pusa. By J. Walter Leather ..
John Walter Leather · Printed by Thacker, Spink & Co.
44 sayfa · 1907
Agricultural Research Institute (India) / Greenhouses