A Laboratory Manual of Agriculture for Secondary Schools

Cover A Laboratory Manual of Agriculture for Secondary Schools
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Smooth the surface of the soil in all the pans and plant twenty kernels of corn in each pan. Plant the kernels at a depth of one inch.
Treat the pans as follows : 1. Sand. No treatment. Set in a warm place to ger- minate.
2. Sand. Thoroughly saturate with water. Set in a warm place to germinate.
3. Sand. No treatment. Place where the temperature is cool, but not cold enough to freeze.
4. Clay. No treatment. Set in a warm place to ger- minate.
156 LABORATORY MANUAL OF AGRICULTURE 5. Clay. Thorou
...ghly pack the surface of the soil by compacting. Set in a warm place to germinate.
6. Clay. Thoroughly pack the surface of the soil by compacting and thoroughly saturate the soil. Set in a warm place to germinate.
It will usually be sufficiently warm behind the stove or in the furnace room of the school building to maintain the proper temperature for germination.
Pans 1, 3, 4, and 5 should be watered to maintain the proper moisture for the best growth of the seeds.
Pans 2 and 6 should be wet until water just stands on the surface and should be maintained in this condition by adding additional water each day.


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