The book Agriculture for Southern Schools was written by author J F John Frederick Duggar Here you can read free online of Agriculture for Southern Schools book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Agriculture for Southern Schools a good or bad book?
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— By mixing his fertilizers the farmer can usually save several dollars per ton. He $ 5.58 8.75 1.72 $ 16.05 $ 21.00 16.05 Fig. 66. - On left, Cotton Unfertilized ; on right, Cotton supplied WITH A Complete Home-mixed Fertilizer can also make a variety of mixtures, adapted to each crop and to each field. io6 AGRICULTURE Fillers in fertilizers. — A full ton of the mixture is not always needed to afford the desired amount of plant- food. If a full ton having the given percentage composition is wa...nted, add the necessary amount of some worthless mate- rial, such as ground stone or cinders. Such worthless addi- tions to fertilizers are called fillers. If manufacturers add them it is for the purpose of making a fertilizer that they can afford to sell at a low price. To avoid buying and hauling useless filler, use only the highest grades of manu- factured fertilizers. These are higher in price, but gener- ally furnish nitrogen, phosphoric acid, and potash at a lower cost per pound than do low-grade, cheap fertilizers.
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