Bulletin, Броеве 86–115University of Florida, Agricultural Experiment Stations, 1906 |
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Страница 22
... lime per acre , while the amount of these plant foods present , on the average , in the soils of the humid regions of the United States is 26,000 pounds per acre . He has further shown that in no case does the amount of soluble salts ...
... lime per acre , while the amount of these plant foods present , on the average , in the soils of the humid regions of the United States is 26,000 pounds per acre . He has further shown that in no case does the amount of soluble salts ...
Страница 30
... lime and magnesium , which are present in most soils , and is in turn rendered slowly available by the action of the solutions con- tained in the roots of the plants . As to the absorption of the alkalies , the explanation is not so ...
... lime and magnesium , which are present in most soils , and is in turn rendered slowly available by the action of the solutions con- tained in the roots of the plants . As to the absorption of the alkalies , the explanation is not so ...
Страница 33
... lime and magnesia , and a comparatively small amount of organic matter , but which is on the other hand , 98 to 99.5 per cent . insoluble matter - much of it being very coarse sand - hence there are wanting nearly all those proper- ties ...
... lime and magnesia , and a comparatively small amount of organic matter , but which is on the other hand , 98 to 99.5 per cent . insoluble matter - much of it being very coarse sand - hence there are wanting nearly all those proper- ties ...
Страница 36
... lime to the soil . In some soils lime tends to produce a flocculent effect ( a binding together of the minute particles into flakes ) which condition makes the soil more retentive of moisture . In a sandy soil the tendency would be for ...
... lime to the soil . In some soils lime tends to produce a flocculent effect ( a binding together of the minute particles into flakes ) which condition makes the soil more retentive of moisture . In a sandy soil the tendency would be for ...
Страница 40
... lime in various forms . Through atmospheric agen- cies , largely , these compounds are rendered more or less readily available to plants . " A fertile soil is one in which the weathering effects come in at such times and to such an ...
... lime in various forms . Through atmospheric agen- cies , largely , these compounds are rendered more or less readily available to plants . " A fertile soil is one in which the weathering effects come in at such times and to such an ...
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A. W. BLAIR abundant adults ammonia amount applied average Bordeaux mixture Brown Fungus Bulletin bushels cassava cent citrus cottonseed meal crop cultivation disease E. W. BERGER eggs favorable feeding fertilizer Florida Florida Agricultural Experiment food plants forage fruit fumigation fungi gain Gainesville grove grower growing growth H. G. S. Potash H. S. FAWCETT humus inches increase infested insecticides Japanese cane killed larvæ leaf leaves lime limestone method Milk produced moisture muck soils nitrates nitrogen orange P. H. ROLFS phosphoric acid pinned plant food Plot pupa pustules rain rape Red Aschersonia red fungus red-headed fungus samples scale insects Scaly Bark shows silage Soil 66 solution sooty mold sorghum sorghum silage species spores spots spraying stage Subsoil 66 sugar sulphate surface sweet potatoes TABLE tion tomato umbrella trees velvet beans Wheat bran whitefly larvae winter yellow yield