Seeding and Planting; A Manual for the Guidance of Forestry Students, Foresters, Nurserymen, Forest Owners, and Farmers
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 edition. Excerpt: ... to a depth of 12 inches and thoroughly loosens it without turning under the surface humus is one of the best. The Danish rolling harrow2 works on the same principle but loosens 1 Moller, Alfred: Demonstration und Vortrag im Versuchsgarten der mykologischen Abteilung. (Zeitschrift f. Forst-u. Jagdwesen, S. 330-332. 1912.) 2 Metzger, Forstassessor: Einiges uber die daniache Rollegge. (Allgemeine Forst-u. Jagd-Zeitung, S. 279-283. 1900.) the soil to less depth. It is believed that implements patterned somewhat after the better of the European forest plows of the wheel and roller types could be advantageously introduced into the United States. Artificial regeneration on heaths is always very difficult, due to the mineral soil being too poor to support satisfactory growth. The organic matter overlying the mineral soil contains humic acid and other sour humous constituents deleterious to tree growth. The difficulty is often increased by the presence of pan at shallow depths. Greve1 recommends the burning of the surface as the first operation, care being taken to injure the organic matter in the surface soil as little as possible. The surface layer of organic matter is then thoroughly mixed with the mineral soil beneath. It is usually useless to attempt artificial regeneration on heaths without previous soil preparation. 17. Shallow Tillage Various types of harrows, drags, cultivators, hoes, and rakes are used in working forest soil to a depth less than 5 inches. Harrows, drags, and cultivators with rigid frames and teeth are not suited for working forest soil. The implement should be of the roller type or the teeth should be flexible. Weinkauff2 recommends the spring harrow as the most efficient implement for working ordinary forest soil to a...
- 189 x 246 x 8mm | 286g
- 13 Sep 2013
- United States
- black & white illustrations