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Physical Sciences and Mathematics Commons

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Articles 1 - 9 of 9

Full-Text Articles in Physical Sciences and Mathematics

Don't Crop Areas Liable To Waterlogging, Department Of Agriculture, Western Australia Jan 1971

Don't Crop Areas Liable To Waterlogging, Department Of Agriculture, Western Australia

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

The increasing areas of crops being sown in high rainfall districts make it likely that many crcp areas include sections liable to severe waterlogging.

This report presents results of a 1970 trial which clearly show that sowing such sections is not economic.


Irrigation In South-Western Australia, K S. Cole Jan 1971

Irrigation In South-Western Australia, K S. Cole

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

THE pattern of irrigation in South-Western Australia is constantly changing, At present, the main increase is in the private sector.

In the past century, there has been a see-saw effect from private to Government to private schemes.


Trickle Irrigation, B Swan Jan 1971

Trickle Irrigation, B Swan

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

THE introduction of trickle irrigation has caused tremendous interest among commercial irrigators. While not a new concept, its application was formerly restricted to glasshouse and nursery use.


Growing Plants With Salty Water, C V. Malcolm, S. T. Smith Jan 1971

Growing Plants With Salty Water, C V. Malcolm, S. T. Smith

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

LACK of good quality water in many parts of Western Australia often forces people to use salty water for irrigation and gardening.

This article gives some hints on how to reduce salt damage to plants when salty water must be used for irrigation or gardening.

It includes a table of plants which may be irrigated with water of varying degrees of salinity and lists precautions which should be taken for each group.


Grain Sorghum In The Ord Valley : Three Crops A Year?, P J. May Jan 1971

Grain Sorghum In The Ord Valley : Three Crops A Year?, P J. May

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

High temperatures and ample irrigation water allow grain sorghum to be grown throughout the year on the Ord River Irrigation Area, and observations in 1969-70 indicated that it may be possible in this area to produce three crops in one year from one planting, by ratoon cropping.

This article describes the technique and discusses its possibilities on the Ord.

The sorghum midge, one of the worst pests of sorghum, could well make ratoon cropping impossible, but the midge has not yet been seen in this area.


Sprinkler Irrigation In Windy Conditions, K S. Cole, G. C. Brown Jan 1971

Sprinkler Irrigation In Windy Conditions, K S. Cole, G. C. Brown

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

THOSE summer winds—be they cooling afternoon breezes or scorching easterlies—are no help to the irrigationist.

Where sprinklers are used wind can result in uneven irrigation, reduced yields and spoilt produce.


Low Cost Filter For Trickle Irrigation, C R. Coffman, G. L. Godley Jan 1971

Low Cost Filter For Trickle Irrigation, C R. Coffman, G. L. Godley

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

CLEAR water is essential for a successful trickle irrigation scheme. Most water sources are not sufficiently clean and some form of filtration is necessary.


Testing Grain Crops, H M. Fisher Jan 1971

Testing Grain Crops, H M. Fisher

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

TODAY'S competitive markets for crop products stress the need for greater awareness of buyers' requirements and more detailed knowledge about our ability to supply them.

Crop varieties and their performance in different environments are important aspects of production potential.


New Varieties Could Extend The Peach Canning Season, S R J Newton Jan 1971

New Varieties Could Extend The Peach Canning Season, S R J Newton

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

THE peach canning industry in Western Australia at present has only a limited period of operation, coinciding with the harvest time of the major variety, Golden Queen.

New canning peach varieties tested at Stoneville Research Station could be used to extend the harvest period of canning peaches beyond that of the present standard variety, Golden Queen.

This would have obvious advantages for growers and a canning industry.

The South African variety Keimoes was the most promising canning peach tested. Tests on other varieties are continuing.