American FarmerJohn S. Skinner, 1869 |
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Página 269
... important agricultural product , wheat , there seems a constant tendency to degeneration . The virgin soil of this conti- nent , within certain latitudes , usually produces abundant crops of this staple cereal ; but after a time , the ...
... important agricultural product , wheat , there seems a constant tendency to degeneration . The virgin soil of this conti- nent , within certain latitudes , usually produces abundant crops of this staple cereal ; but after a time , the ...
Página 327
... importance . The supply of atmospheric food is unlimited and constant . The supply of mineral food is limited by the ... important consideration to be kept constantly in view , is that each par- ticular plant requires particular elements ...
... importance . The supply of atmospheric food is unlimited and constant . The supply of mineral food is limited by the ... important consideration to be kept constantly in view , is that each par- ticular plant requires particular elements ...
Página 336
... important that the plants be raised from good seed - seed that will give healthy plants ; then a rich soil , deeply cultivated with an abundance of well rotted manures , and finally , thorough culture and keeping down weeds , will ...
... important that the plants be raised from good seed - seed that will give healthy plants ; then a rich soil , deeply cultivated with an abundance of well rotted manures , and finally , thorough culture and keeping down weeds , will ...
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Términos y frases comunes
2d best acid acre agricultural American Farmer ammonia amount animals applied Baltimore beds better bones breed bushels carbonic acid cattle cent cider clover compost corn cost cows crop cultivation culture dairy disease early earth eggs experience farm feed feet fertilizers field flowers four fowls fruit garden give grain grape grass ground grow growth guano half hogs horse hundred improved inches insects Journal keep labor land leaves less lime manure Maryland matter ment milk month oats pasture phosphate phosphoric acid plants plaster plough potash potatoes pounds practical produce profit quantity red clover rich roots rows salt season seed sheep soil sown spring straw success superphosphate supply surface tillage tion tobacco trees turnips varieties vegetable weather wheat William Devries winter worms yield young