Life Sciences Commons^™

Measurement Of Throughfall At Two Levels In A Young Aspen Stand, J.R. Clements

Aspen Bibliography

The purpose of this report is to compare measurements of the quantity of throughfall at two different heights above ground level in a seven-year-old sucker stand of largetooth aspen (Populus grandidentata Michx.) This comparison defines the influence rain splash from the forest floor has on the quantity of throughfall catch of trough rain gauges placed on the forest floor.

How Profitable Are Herbicides For Weeds In Crops?, J W. Malcolm, G. A. Pearce

Journal of the Department of Agriculture, Western Australia, Series 4

BEFORE spending money on chemical weed control in crops, a farmer needs to know how profitable the operation will be. He may also be influenced by other things such as the need for weed-free seed, but the most important consideration should be an increased cash return.

If a herbicide is used to control weeds in a crop, the extra yield achieved must be worth more than the cost of the herbicide and its application for the treatment to be profitable.

This article gives guidelines to help farmers estimate the likely profitability of herbicide treatments for quota and non-quota crops.

A Cheaper Herbicide For Wild Oats, Geoffrey A. Pearce

Journal of the Department of Agriculture, Western Australia, Series 4

A NEW herbicide, *NEOBAN, will reduce the cost of chemical for the control of wild oats in wheat and barley to $2.50 per acre.

Because of the cost of herbicides for wild oats during the past two years, the acreage treated has been declining steadily.

Farmers who thought that spending about $4 per acre was worth while will be delighted with Neoban.

Recommended Crop Varieties : 1972, H M. Fisher

Journal of the Department of Agriculture, Western Australia, Series 4

RECOMMENDATIONS on crop varieties for 1972 continue to place emphasis on grain quality in relation to the requirements of overseas buyers. Gamenya, Falcon and Bokal wheats, Dampier and Beecher barleys, Swan oats and Kameniza linseed are the main varieties recommended.

Alternative Crops To Wheat : An Assessment, H M. Fisher

Journal of the Department of Agriculture, Western Australia, Series 4

INTRODUCTION of wheat production quotas in 1969 promoted widespread interest in suitable alternative crops.

The only other crops grown on a significant scale in W.A. were barley and oats and farmers were quick to substitute these cereals in their cropping programmes.

A Revision Of Harlow's Recursive Cobweb Model For The Hog Industry From 1960 To 1968, James David Stewart

Masters Theses

No abstract provided.

Grow Barley For Malt Or Feed, G B. Crosbie, J. A. Parish

Journal of the Department of Agriculture, Western Australia, Series 4

MALTING barley can be grown in certain areas receiving more than 13 inches annual rainfall, and farmers have to make a choice between growing barley for malt or feed in these areas.

Interception Per Canopy In A Multi-Storied Largetooth Aspem Community, John R. Clements

Aspen Bibliography

No abstract provided.

Net Rainfall In A Multi-Storied Aspen Forest Community, J.R. Clements

Aspen Bibliography

This paper presents mathematical equations describing the relationships between the amount of net rain per storm under each crown canopy and the amount of gross rain per storm in a multi-storied forest community. The relationships were curvilinear and accounted for gradual filling of the storage capacity of the vegetation. The rate of increase of net rainfall was successively less for each crown canopy in turn starting with the uppermost canopy in the forest. The equation coefficients varied in respect of the position of the crown canopies in the vegetal profile and also in respect of variations in vegetal structure within …

Rb246 Trees And Shrubs For Noise Abatement, David I. Cook, David F. Van Haverbeke

University of Nebraska-Lincoln Extension: Historical Materials

Excessive noise is a form of environmental pollution. The continual increase in the community noise level during the past two decades indicates a future noise problem comparable to the current air pollution problem of our large industrial centers.

Trees and other forms of vegetation are known to have some effect on the transmission of sound but precise information on their use as noise screens is rather meager. In this study, we attempted to derive accurate, useful information for the above purpose, and to add to knowledge about outdoor sound propagation. Actual plantings of trees and shrubs in the form of …

An Ecological Study Of Coliform Bacteria Associated With Vaccinium Corymbosum, Harry C. Bittenbender

Honors Theses

Recent research has shown that there are coliform populations associated with the cultivated high bush blueberry, Vaccinium corynbosum. This study is aimed at determining the ecology of these colofirms, as they are related to blueberry production from the farm to the warehouse. Tests will be made to identify the Salmonella group, those associated with "food poisoning." Total bacterial coliform counts will also be made. This paper is primarily an ecological study of the coliforms found on blueberry farms near Grand Junction, though fruit samples were taken from all warehouses of the M.B.G.A.

R. L. Mitchell's Farm Ledger. Box 4: Folder 7, Bobby Mitchell

Deeply Rooted

Farm ledger containing crop production by an individual worker. This item has been aggregated as part of the Association of Southeastern Research Libraries (ASERL)'s "Deeply Rooted: The Agricultural & Rural History of the American South" project.