United States Department of Agriculture
Describes and illustrates a technique to mail and store diseased leaf samples to prevent deterioration or damaage.
The third timber inventory of Missouri's Southwestern Ozarks Forest Survey Unit shows a substantial decline in the volumes of both growing stock and sawtimber between 1959 and 1972. Commercial forest area also declined substantially during the same period. Presented are highlights and statistics on forest area and timber volume, growth, mortality, ownership, and...
Compares effeects of various wee-control methods, including hericides, cultivation, and legume cover crop, on tree survival and height growth of 2-year-old hybrid poplars. Cultivation and herbicides singly or in combination gave consistently better results than the other treatment tested.
Reports the various applications and average costs of prescribed burning in the Central Lake States during 1972.
Describes the financial performance of red pine on site index 60, 70, and 80 lands by using new yield evidence and up-to-date cost and revenue assumptions. Best combinations of initial stocking, residual basal area after thinning, an rotation age are identified for two different financial criteria: soil expectation value and internal rate of return.
Herbicides of 17 different rates and formulations were oversprayed on newly planted 1-0 European larch seedlings in teh spring of 1983 at the recommended rates. Simazine, bifenox, oxyfluorfen, promamide, and oryzalin provided adequate weed control with no damage to the larch. Height growth at the end of the first growing season was one-and-a-half times greater in the...
Red pine seedlings were grown in nine different soil media and in two types of containers in a greenhouse. Growth differed significantly among the media after 16 weeks, with the largest seedlings produced in a peat-vermiculite mix
Describes and analyzes the activities of farm building contractors and manufacturers in Illinois, Indiana, Iowa, and Missouri. Contractors and manufacturers are setting the trend in the farm building market in terms of building type and size and materials used.
Two 750 ft. piles of unbarked chips were stored for 1 year to evaluate the effect of chip storage on the effectiveness of bark-chip separations-segregation methods under study. in processing stored chips suffered more wood loss than fresh chips.
Black oak forest floor fuelbeds under 20 - and 40-year-old stands in southeast Missouri averaged 6.4 and 4.2 inches in depth, respectively. Loose Litter averaged 2.0 and 2.9 tons per acre and 3.3 inces in depth. Bulk density of litter averaged 0.33 and 0.49 lb/ft3 and of total forest floor 0.89 and 1.10 lbs/ft3, respectively.
Runoff was measured on paired litter-removed, litter-left plots in an 11-year-old European larch plantation. On five of the six pairs of plots, the plot with the litter left intact yielded more runoff. however, the differences were neither statistically nor hydrologically significant.
Species coefficients are reported for predicting individual tree survival for nine Lake States species, supplementing a previous report for 10 species. Tree attributes are diameter growth rate and diameter at breast height. Regional and local performances are summarized.
In 1981 wooded strips and windbreaks in Kansas coverd 336,000 acres and were more than 54,000 miles long. Wooded strips contained 300 million board feet of sawtimber and 92 million cubic feet of growing stock.
Two study sites in central Missouri oak-hickory forests were searched for nest sites of cavity nesting birds. Researchers located and measured 133 nests of 11 species. Cavity nesting bird habitat selection is affected by both snag characteristics and vegetation structure.
Volume tables are given for yield of clear-one-side, flat dimension from small, low-quality trees and boldts removed in a stand improvement cut of 54- to 76-year-old black cherry trees from northern Pennsylvania.
Seasonal weight-volume relationships were determined for rough (bark on) aspen and black spruce 100-inch pulpwood that was delivered withing 1 week after cutting in northern Minnesota during 1971-72. For aspen, the weight of wood and bark per cubic foot of wood averaged 56 pounds in the winter and 61 pounds in the summer. This relationshipfor winter-cut black spruce...
This 28th annual report shows 1973 pulpwood production by county and species group in Michigan, Minnesota, and Wisconsin. Lake States pulpwood production rose to 4.7 million cords in 1973 from 4.3 million cords in 1972.
Volume tables are given for yield of clear-one-side, flat dimension fromsmall low-quality trees and bolts removed in a stand improvement cut from 30- to 40-year-old black walnut cuttings.
Volume tables are given for yield of clear-one-side, flat dimension from small low-quality trees and bolts removed in a stand improvemtn cut of 18- to 44-year-old soft maple trees in southern Illinois.
Projected softwood shortages and high costs of mechanized tree planting indicate that more efficient planting equipment and systems are needed. This paper presents cost and productivity data for mechanically planting red pine seelings on a site previously occupied by hardwoods in northern Wisconsin