The Encyclopedia Americana: A Library of Universal Knowledge, Količina 11Americana Corporation, 1936 |
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Zadetki 1–3 od 84
Stran 148
... contains from 7 per cent to 9 per cent phosphoric acid , largely in the form of tricalcium phosphate . All of these bone - phosphates are slow - acting fertilizers and should be used finely ground and for the per- manent benefit of the ...
... contains from 7 per cent to 9 per cent phosphoric acid , largely in the form of tricalcium phosphate . All of these bone - phosphates are slow - acting fertilizers and should be used finely ground and for the per- manent benefit of the ...
Stran 149
... contain little or no nitrogen . South Carolina rock superphosphate rock , or " floats " as they are sometimes phate contains from 12 to 14 per cent available phosphoric acid , including from 1 to 3 per cent reverted phosphoric acid ...
... contain little or no nitrogen . South Carolina rock superphosphate rock , or " floats " as they are sometimes phate contains from 12 to 14 per cent available phosphoric acid , including from 1 to 3 per cent reverted phosphoric acid ...
Stran 150
... contains its potash both as chloride and as sulphate . It also contains sodium and magnesium chlorides . It contains about 16 per cent potash . Owing to the pres- ence of chlorides it has the same effect as kainite . Muriate ( Chloride ) ...
... contains its potash both as chloride and as sulphate . It also contains sodium and magnesium chlorides . It contains about 16 per cent potash . Owing to the pres- ence of chlorides it has the same effect as kainite . Muriate ( Chloride ) ...
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acid agricultural American ancient animal appeared appointed army became blue British buildings called cent centre century chimæras Christian Church Cigrand coast College colonies color Consult contains crops eggs elected England English Europe farm farmer father Faust Federal feet feldspar Félibrige ferns fertilizers fibre Fichte field Firdausi fire fisheries fishes flag flax Florence Florida flour flowers France French German Greek History important industry insects islands Italian Italy king known Lake lancelet land langue d'oc larvæ later lived London manufacture ment miles mills modern nitrogen North organized Paris phosphoric acid pistil plants pollen potash professor published River Roman Rome Saint soil South Spain species sporangia square miles stamens stars stripes studied tion town union United University usually West wheat York