Life Sciences Commons^™

Tb65: The Commercial Use Of Puckerbrush Pulp, Andrew J. Chase, Fay Hyland, Harold E. Young

Technical Bulletins

This study investigates the potential of several local puckerbrush or weed trees and shrubs as sources of fiber for papermaking. Four different pulping processes were used (sulfate, magnesium bisulfite, neutral sulfite semichemical, and cold caustic) with six puckerbrush species (alder, gray birch, red maple, pin cherry, aspen, and willow). Mixtures of puckerbrush species, and commercial chip-puckerbrush species mixtures were pulped by the sulfate process with the objective of producing a pulp that would be suitable for fine-grade papers. The results produced a good grade of bleachable pulp with adequate physical characteristics for most fine paper grades. The other three pulping …

Tb63: Variation In Foliar Nutrient Concentrations In Red Spruce, C. E. Schomaker

Technical Bulletins

Red spruce (Picea rubens Sarg.) is an important pulpwood species in northern New England and Canada. Management objectives favor this species and the closely related black spruce (Picea mariana Mill. BSP) on many sites. Foliar nutrient concentrations of unfertilized, economically mature, red spruce trees growing on four different sites and over two- and three-year periods are presented here and compared to foliar concentrations reported by other scientists.

Tb64: Low Temperature Injury To Apple Trees In Maine, M. T. Hilborn, W. C. Stiles

Technical Bulletins

This technical bulletin presents an overview of low temperature injury to apple trees. They describe the winter killing of apple trees in Maine in 1933-34 and describe hardy trunk forming stocks. They also report on a trial orchard at Highmoor Farm for trunk-forming stock and the influence of stock-scion combination on hardiness. They end with five recommendations for apple growers.

B704: Costs And Returns On Maine Apple Farms, Wilbert C. Geiss Jr., Reginald K. Harlan

Bulletins

The purpose of this study was to collect data relative to the costs of growing, harvesting, storing, and packing apples in Maine, to analyze the factors affecting costs and returns, and to provide Maine apple producers with current information for adjusting farm resources to achieve optimum efficiency in production under rapidly changing economic conditions.

This study was undertaken to determine the profitability of Maine apple farms, and to determine the current size and scope of the Maine apple industry. The results and implications of this study should be useful to all concerned with the apple industry in Maine and New …

A Study Of The Dickey-Lincoln Hydroelectric Project And Its Impact On The Resources Of The Upper Saint John River Valley, Rosemary M. Manning, Sierra Club, New England Chapter

Dickey-Lincoln School Lakes Project

This report was under-taken primarily to evaluate the impact that the construction of the Dickey-Lincoln project would have upon the resources of the Upper St. John River, and to examine the assertion that the Dickey-Lincoln project constitutes a wise use of the public's environmental and economic resources. Since the case that has been made for the construction of the Dickey-Lincoln project rest primarily on the justification of the project in economic terms, this aspect of the project proposal will be intensively explored.