The First book of Farming
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In our eReader you can find the full English version of the book. Read The First book of Farming Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The First book of Farming
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They are therefore better materials to use for a more gradual and continuous feeding of crops than the nitrate of soda or sulphate of ammonia.
Scrap leather, wool waste, horn and hoof shav- ings are rich in nitrogen but they decay so slowly that they make poor fertilizers. They are used by fertilizer manufacturers in making cheap mixed fer- tilizers.
SOURCES OF PHOSPHORIC ACID The principal commercial sources of phosphoric acid are : Phosphate Rocks.
Bones.
Fish scrap.
Phosphate slag.
The Phosp...hate Rocks are found in shallow mines in North and South Carolina, Georgia, Florida and Tennessee, and also as pebbles in the river beds.
They are the fossil remains of animals. After be- ing dug from the mines the rock is kiln dried and then ground to a very fine powder called " floats " which is used on the soil. The phosphoric acid in the floats is insoluble and becomes available only as the phosphate decays. This is too slow for most 196 THE FIRST BOOK OF FARMING plants SO it is treated with oil of vitriol or sulphuric acid to make it available.
What to read after The First book of Farming?
You can find similar books in the "Read Also" column, or choose other free books by Goodrich Charles Landon to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
They are therefore better materials to use for a more gradual and continuous feeding of crops than the nitrate of soda or sulphate of ammonia.
Scrap leather, wool waste, horn and hoof shav- ings are rich in nitrogen but they decay so slowly that they make poor fertilizers. They are used by fertilizer manufacturers in making cheap mixed fer- tilizers.
SOURCES OF PHOSPHORIC ACID The principal commercial sources of phosphoric acid are : Phosphate Rocks.
Bones.
Fish scrap.
Phosphate slag.
The Phosp...hate Rocks are found in shallow mines in North and South Carolina, Georgia, Florida and Tennessee, and also as pebbles in the river beds.
They are the fossil remains of animals. After be- ing dug from the mines the rock is kiln dried and then ground to a very fine powder called " floats " which is used on the soil. The phosphoric acid in the floats is insoluble and becomes available only as the phosphate decays. This is too slow for most 196 THE FIRST BOOK OF FARMING plants SO it is treated with oil of vitriol or sulphuric acid to make it available.
What to read after The First book of Farming?
You can find similar books in the "Read Also" column, or choose other free books by Goodrich Charles Landon to read onlineMoreLess
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