This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...in obtaining their own food and fix the nitrogen in the soil. Legumes will not do well, nor will any plants do well unless the soil contains bacteria. Exercise 4 illustrates to you a method called "soil inoculation," which the farmer sometimes uses to insure a good crop of alfalfa. Another good way to inoculate soil is ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...in obtaining their own food and fix the nitrogen in the soil. Legumes will not do well, nor will any plants do well unless the soil contains bacteria. Exercise 4 illustrates to you a method called "soil inoculation," which the farmer sometimes uses to insure a good crop of alfalfa. Another good way to inoculate soil is as follows: (1) in a tub full of water put several spadefuls of soil taken from an alfalfa field; (2) stir each day; (3) draw off the water and use it to soak the seeds. Potash and phosphorus. See Chapter XIX for the use of these two fertilizers. Caution. The latter part of Exercise 3 teaches that fertilizers must be used carefully or the plants may be killed. Questions 1. How may soil be improved? 2. Where does a plant get its food? 3. Name the plant foods which are necessary and which are sometimes missing. 4. How may soil fertility be lost? How may the loss be prevented? 5. Name the methods used in adding nitrogen to the soil. 6. Tell what you can of the value of manure, its care and its use. 7. What is meant by soil inoculation? (Repeated.) 8. How may potash and phosphorus be added to soil? (Repeated.) 9. What happens to an overfed plant? Home Studies 1. How many plant growers in your neighborhood use commercial fertilizers? (Repeated.) 2. What is the cost of fertilizing an acre of ground with a "mixed" fertilizer? 3. What will happen to our farms if hay crops are shipped away and the manure is wasted? 4. What does it cost to add manure to an acre of land? 5. What method is used in manuring soil in your vicinity? When is the manure applied? 6.'Is any care being used to prevent the "leaching" of manure and to prevent the loss of nitrogen in the air? 7. Find a method used by some alfalfa growers by which they i...
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