The Forest Nursery: Collection of Tree Seeds and Propagation of Seedlings

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Department of Agriculture, Forestry Division, 1900 - Forest nurseries - 63 pages
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Page 31 - ... use of any of the contact insecticides mentioned in this publication it should be remembered that their value is in direct proportion to the thoroughness of their distribution. None of them is effective unless brought into contact with the bodies of the insects. The undersides of the sprayed leaves should be examined from time to time, to see that they are being wetted, and this may be used as an index to the effectiveness of the spray. The plant-lice will not be destroyed unless brought into...
Page 57 - Following the transplanting of seedlings the nursery rows should be kept clear of weeds and the soil stirred frequently with hoe or cultivator. It is especially necessary that the nursery be gone over after a rain as soon as the surface soil is dried out sufficiently to work well. This will prevent the deeper moisture from drying out about the roots of the trees. In case no rain falls within two weeks after the plants have been set in the nursery, water should be applied to the rows. In dry regions...
Page 3 - ... the last twelve years by the Department of Agriculture from farmers and other land owners asking advice on how to procure tree seeds and how to raise seedlings shows an extensive demand for such information. Many treatises have been written on the propagation of forest trees, but most of these books lack the simpler and special instructions which the Department's correspondence shows to be in greatest demand, especially among farmers. Moreover, a great many of the books published are now out...
Page 23 - Tree seeds must be collected chiefly by hand picking. Certain classes of them, such as the seeds of the Oaks, Hickories, Walnuts, ButtcrFIG.
Page 41 - As soon as the ground can be worked in the spring it should be plowed or spaded again and thoroughly pulverized by raking or harrowing, removing all clods, stones, etc.

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