Elements of Agricultural Chemistry and GeologyW. Blackwood, 1852 - 410 páginas |
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Página xii
... oats , barley , and rye , and of the sugar - cane . - Composition and use of peat or Dutch ashes . - Coal ashes . 247 CHAPTER XVIII . Why saline manures are required by the soil . - Mode of determining their local value ...
... oats , barley , and rye , and of the sugar - cane . - Composition and use of peat or Dutch ashes . - Coal ashes . 247 CHAPTER XVIII . Why saline manures are required by the soil . - Mode of determining their local value ...
Página xiii
... oat , and influence of variety on its composition and nutritive quality . - Composition of barley , and influence of circum- stances on its sprouting , melting , and feeding properties . - Composition of rice , maize ( Indian corn ...
... oat , and influence of variety on its composition and nutritive quality . - Composition of barley , and influence of circum- stances on its sprouting , melting , and feeding properties . - Composition of rice , maize ( Indian corn ...
Página 7
... oat straw as much as 200 lb. A ton of the grain of wheat leaves on an average about 45 lb. , of the 8 SIMPLE AND COMPOUND BODIES . grain of oats about.
... oat straw as much as 200 lb. A ton of the grain of wheat leaves on an average about 45 lb. , of the 8 SIMPLE AND COMPOUND BODIES . grain of oats about.
Página 8
James Finlay Weir Johnston. 8 SIMPLE AND COMPOUND BODIES . grain of oats about 9 lb. , and of oak wood only 4 or 5 lb. Animal substances also leave a proportion of ash when burned in the air . Dry flesh and hair leave about 5 per cent of ...
James Finlay Weir Johnston. 8 SIMPLE AND COMPOUND BODIES . grain of oats about 9 lb. , and of oak wood only 4 or 5 lb. Animal substances also leave a proportion of ash when burned in the air . Dry flesh and hair leave about 5 per cent of ...
Página 15
... Oats , 507 64 367 22 40 Oat Straw , 501 54 390 51 It is to be observed , however , that in drying by a gentle heat , 1000 lb. of common hay from the stack lost 158 lb. of water ; of clover hay , 210 lb .; of potatoes wiped dry ...
... Oats , 507 64 367 22 40 Oat Straw , 501 54 390 51 It is to be observed , however , that in drying by a gentle heat , 1000 lb. of common hay from the stack lost 158 lb. of water ; of clover hay , 210 lb .; of potatoes wiped dry ...
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Outras edições - Ver tudo
Elements of Agricultural Chemistry and Geology James Finlay Weir Johnston Visualização integral - 1855 |
Palavras e frases frequentes
abound acre agricultural ammonia animal applied arable barley bones burned bushels carbonic acid cent chalk chemical chiefly clay composition consists contain crops decay dissolved districts drains dung effect farmer farmyard manure fermentation fertilising fertility fibre geology gluten grain grass green grow growth guano gypsum Hence improvement inorganic kind land leaves less limestone liquid magnesia milk mineral mixed mixture natural nearly nitrate nitrate of soda nitric acid nitrogen oats organic food organic matter oxide of iron oxygen pasture peat phosphate phosphate of lime phosphoric acid plants ploughing portion potash potato practical produce proportion protein compounds quantity rains readily rich rocks roots saline matter saline substances salt sand sandstone sandy SECTION seed silica soda soil solid soluble starch straw subsoil sugar sulphate sulphuric acid supply surface tain tion top-dressing turnip urine vegetable matter weight wheat yield
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Página 41 - When a seed is committed to the earth, if the warmth and moisture are favorable it begins to sprout. It pushes a shoot upwards, it thrusts a root downwards ; but until the leaf expands and the root has fairly entered the soil, the young plant derives no nourishment other than water, either from the earth or from the air. It lives on the starch and gluten contained in the seed.
Página 73 - ... in vegetable matter, leave no more than 10 of clay when treated in this manner, it is called a sandy soil; if from 10 to 40, a sandy loam; if from 40 to 70, a loamy soil; if from 70 to 85, a clay loam ; from 85 to 95, a strong clay soil; and when no sand is separated at all by this process, it is a pure agricultural clay.
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