The Encyclopedia Americana: A Library of Universal Knowledge, Količina 11Americana Corporation, 1936 |
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Stran 144
... fertilizers . A fertilizer may contain any one or more of these substances . The chief distinction between the functions of farm manure and commercial fertilizers may be stated in a general way to be that farm manure increases crop ...
... fertilizers . A fertilizer may contain any one or more of these substances . The chief distinction between the functions of farm manure and commercial fertilizers may be stated in a general way to be that farm manure increases crop ...
Stran 145
... fertilizers composed of mineral salts , commonly known as commercial fertilizers . The earliest record of the use of artificial manures for increasing the yield of crops is contained in a book entitled ' A Discourse Con- cerning the ...
... fertilizers composed of mineral salts , commonly known as commercial fertilizers . The earliest record of the use of artificial manures for increasing the yield of crops is contained in a book entitled ' A Discourse Con- cerning the ...
Stran 151
... Fertilizers . The term catalytic fertilizer has been used rather loosely to desig- nate a class of substances that , when added to a soil , increase plant growth by apparently ac ... fertilizers usually goes hand in FERTILIZERS 151.
... Fertilizers . The term catalytic fertilizer has been used rather loosely to desig- nate a class of substances that , when added to a soil , increase plant growth by apparently ac ... fertilizers usually goes hand in FERTILIZERS 151.
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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