First Principles of Soil FertilityKegan Paul, Trench, Trubner, 1910 - 265 páginas |
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Página 9
... pounds . This is due to the fact that the same elements can combine in many different ways , each combination forming a different compound . Alcohol , sugar , starch , fats and acetic acid , for example , are substances very unlike in ...
... pounds . This is due to the fact that the same elements can combine in many different ways , each combination forming a different compound . Alcohol , sugar , starch , fats and acetic acid , for example , are substances very unlike in ...
Página 10
... pounds of the matured corn plant , i . e . when the plant is in condition to be cut for shocking . From what has been said it will be seen that of the elements known only thirteen are found in plants ; for what is true of the corn plant ...
... pounds of the matured corn plant , i . e . when the plant is in condition to be cut for shocking . From what has been said it will be seen that of the elements known only thirteen are found in plants ; for what is true of the corn plant ...
Página 12
... pounds of the matured corn plant consist of water in a form that can be driven off at a heat not above the boiling point . In the organic matter is found 12.7 pounds of hydrogen and 88.9 pounds of oxygen which practically all came ...
... pounds of the matured corn plant consist of water in a form that can be driven off at a heat not above the boiling point . In the organic matter is found 12.7 pounds of hydrogen and 88.9 pounds of oxygen which practically all came ...
Página 13
... pounds of water Experiment to show that water is given off passes through the plant for each pound of dry matter pro- duced , so that 1,000 pounds of corn uses at least 30 tons of water from the leaves of plants . The bottle on the left ...
... pounds of water Experiment to show that water is given off passes through the plant for each pound of dry matter pro- duced , so that 1,000 pounds of corn uses at least 30 tons of water from the leaves of plants . The bottle on the left ...
Página 17
... pound containing the two elements carbon and oxygen . Charcoal is a good example of nearly pure carbon . Carbonic acid gas is found everywhere in the atmo- sphere , although present in very small quantities , con- stituting only four ...
... pound containing the two elements carbon and oxygen . Charcoal is a good example of nearly pure carbon . Carbonic acid gas is found everywhere in the atmo- sphere , although present in very small quantities , con- stituting only four ...
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Términos y frases comunes
acid and potash acre agricultural ammonia amount of nitrogen amount of plant animals applied average bacteria barn barnyard manure bedding carbonic acid clay clover commercial fertilizers complete fertilizers composition compounds condition corn crop decay deep stall denitrification drainage dry matter elements of plant Experiment Station fact farm farmer feeding fertilizing constituents fertilizing materials fertilizing value field grain green manuring ground grown hot fermentation humus important inches increase ingredients kainite land leaching legumes leguminous lime liquid excrement loss of nitrogen lysimeters manure produced materials ments method mineral matter mixed moisture necessary nitrate of soda nitrification nitrifying bacteria nitro nitrogen nure obtained organic matter oxygen phoric acid phos phosphate phosphoric acid plant food plant growth plots plowed pounds practically present rains ration removed rock roots rotation shown soil soil contains soluble substances sufficient sulphate superphosphate supply surface tillage tion urine wheat yield