Сводный каталог книг

[Текст] / L.G. Brace ; Forest Research Branch, Department of Forestry, Canada. - Ottawa : Minister of Forestry, 1964. - 15 с. : tables. - (Department of Forestry Publicaion / Department of Forestry, Canada, Forest Research Branch ; 1049). - Библиогр: p. 15. - 0-10 р.

УДК

634.9

Аннотация: After nine growing seaesons no practical difference in survival and groth of white spruce could be attributed to method of planting in a test of two planting methods that dispose the seedling roots in a horizontal plane close to the soil surface and a conventional one that places the roots in a horizontal plane close to the soil surface and a conventional one that places the roots vertically. Growth and variability in height were found to be related to height of planting stock. Planting stock less than 0.5 feet tall grew poorly on the planting site studied. Research into improved culling and grading procedures for size and quality of spruce planting stock is suggested.

Экземпляры всего: 1
ИЛ-Иф (1)
Свободны: ИЛ-Иф (1)

[Текст] / L.G. Brace, K.M. Magar ; Canada Department of Forestry and Rural Development. - Ottawa : Forestry Branch, 1968. - 8 с. : tables. - (Forestry Branch Departmental Publication / Canada Departmrnt of Forestry and Rural Development ; 1209). - Библиогр: p. 8. - 0-16 р.

УДК

634.9

Аннотация: Two methods of automatically computing, summurizing and plotting stem-analysis data proved considerably less time- and cost-consuming than a conventional manual method. Added advantages of automation were improved accuracy; increased flexibility in grouping, summarizing and re-using data; and rapid graphing od data for checking the accuracy of basic observations and compilation


Доп.точки доступа:
Magar, K.M.
Экземпляры всего: 1
ИЛ-Иф (1)
Свободны: ИЛ-Иф (1)