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Articles 661 - 690 of 698

Full-Text Articles in Physical Sciences and Mathematics

Potential Improvements In Irrigation Management Practices: Water Savings And Costs, James R. Gilley Jun 1986

Potential Improvements In Irrigation Management Practices: Water Savings And Costs, James R. Gilley

Western Water: Expanding Uses/Finite Supplies (Summer Conference, June 2-4)

26 pages.


Agricultural Progress On The Ord, D A. Mcghie Jan 1986

Agricultural Progress On The Ord, D A. Mcghie

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

This is the first of occasional articles describing the experimental and commercial activity on the Ord River Irrigation Area (ORIA) in Western Australia's Kimberley region.

Against a background of extensive recources of land and water, a sometimes cimatic advantage and a complementary disadvantage of a remote location, agriculture on the Ord has swung from various monocultures to a broadly based and diversified production. In 1986, the value of agricultural production on the Ord will approach values equivalent to those of the cotton era for the first time since the demise of that industry 12 years ago.


Meeting Colorado’S Water Requirements: An Overview Of The Issues, David H. Getches Oct 1985

Meeting Colorado’S Water Requirements: An Overview Of The Issues, David H. Getches

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

43 pages (includes tables and map).

Includes 3 pages of footnotes.


Financing Water Projects: Where Do We Go From Here?, Henry P. Caulfield, Jr. Jun 1985

Financing Water Projects: Where Do We Go From Here?, Henry P. Caulfield, Jr.

Western Water Law in Transition (Summer Conference, June 3-5)

16 pages.


Interstate Transfers Of Water: Opportunities And Obstables [Sic], A. Dan Tarlock Jun 1985

Interstate Transfers Of Water: Opportunities And Obstables [Sic], A. Dan Tarlock

Western Water Law in Transition (Summer Conference, June 3-5)

34 pages.


Administering Water Rights: The Colorado System, Raymond L. Petros Jun 1985

Administering Water Rights: The Colorado System, Raymond L. Petros

Western Water Law in Transition (Summer Conference, June 3-5)

140 pages (includes illustrations and maps).

Contains bibliography.


On The Choice Of Shadow Prices For Project Evaluation., Jean Dreze Dr. Aug 1984

On The Choice Of Shadow Prices For Project Evaluation., Jean Dreze Dr.

Doctoral Theses

Manohar athanna is one of the remotest parts of Jhalawar District (Rajasthan, India). In the month of June it offers a striking contrast of scenic beauty and economic destitution. Agricultural activity is at a virtual standstill. The soil is very arid, irrigation practically non-existent, and by then the villagers (many of them tribals) have resolved to wait upon the good will of the rain gods.. Hence they have very little to do, or at least so they believe. Some gather wood to sell it in Manohar, walking miles under the scorching sun for a meagre reward, and adding slowly but …


Groundwater And Intergovernmental Relations In The Southern San Joaquin Valley, California, Sally K. Fairfax, Barbara T. Andrews Jun 1983

Groundwater And Intergovernmental Relations In The Southern San Joaquin Valley, California, Sally K. Fairfax, Barbara T. Andrews

Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)

25 pages (includes maps).


Structure And Inter-Relations Of The Land, Labour, Credit And Product Markets Of South Kanara: A Study Of A Backward Agricultural Economy., K. Nagaraj Dr. Feb 1982

Structure And Inter-Relations Of The Land, Labour, Credit And Product Markets Of South Kanara: A Study Of A Backward Agricultural Economy., K. Nagaraj Dr.

Doctoral Theses

South Kanara is a predominantly rural and agricultural district in the state of Karnataka in South India, given largely to the cultivation of a single subsistence crop (paddy) which accounts for nearly 70 per cent of its gross cropped area. The agricultural technology is Primitive, with little use of 'modern' inputs like chemical fertilisers, HYV seeds etc. There are no large scale or modern industries in the district. The little manufacturing activities that exist are mostly of the primary processing type, carried out in small establishments and households. There is however, rather high incidence of the so-called 'tertiary' activities like …


Replacement Strategies For Ageing Assets With Specific Reference To Coconut Plams In Kerala., Chandan Mukherjee Dr. Feb 1982

Replacement Strategies For Ageing Assets With Specific Reference To Coconut Plams In Kerala., Chandan Mukherjee Dr.

Doctoral Theses

Produotion assets which deteriorate in performance with time (or age) are required to be replaced. In general, a stream of benefits and costa are associated with every productive asset, be it a machine or a tree. Ugually, in replacement theory, the benefits and costs are taken as given functions of the age of the asset. These functions provide the oriteria for identifying the pÅ‚ysical condition of the asset. In simple replacement models, an asset is replaced by an ider tical one. The objective of a replacement policy is to find a sequence of time pointe (or alternatively, replacement ages) for …


Contracting For Water From A Federal Project, Gary L. Greer Jun 1981

Contracting For Water From A Federal Project, Gary L. Greer

Water Resources Allocation: Laws and Emerging Issues: A Short Course (Summer Conference, June 8-11)

7 pages.


Bulletin 3929 - Irrigation In Western Australia, K S. Cole Dec 1980

Bulletin 3929 - Irrigation In Western Australia, K S. Cole

Bulletins - 3000 - 3999

Irrigation is essential in many parts of the world to produce essential food and profitable cash crops. Generally, those areas of land with less than 360 mm of rain spread over a distinct wet season of several months cannot grow crops for food or cash on rainfall alone. Then irrigation becomes necessary unless some peculiarity such as an oasis exists.


Water Rights For Western Mineral Development On Public Lands, A. Dan Tarlock Jul 1980

Water Rights For Western Mineral Development On Public Lands, A. Dan Tarlock

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

13 pages.


Acid Rains: Implications For Agriculture, Prabhu D. Rawate Jan 1980

Acid Rains: Implications For Agriculture, Prabhu D. Rawate

Journal of the Minnesota Academy of Science

No abstract provided.


Agricultural Geology, R. Fenwick Jul 1979

Agricultural Geology, R. Fenwick

Natural resources published reports

WESTERN AUSTRALIA

Precambrian rocks occupy 1.5 million kn2 or roughly 60% of the total land area of the state, to form one of the most extensive and varied precambrian regions of the world. The oldest rocks are the comparatively little altered sediments and volcanics of the Pilbara Diock whose age must exceed that of the 3 000 million year old granites which intrude then

Western Australia is divisable into two broad geological types. The great plateau or Western or Archean Shield and coastal and inland basins.

The Western Shield is the largest area of Archean (Archeozoic era) rocks in Australia, …


University Of Connecticut Agriculture Climate Station In Coventry , Connecticut, The, David R. Miller, Byron E. Janes Sep 1978

University Of Connecticut Agriculture Climate Station In Coventry , Connecticut, The, David R. Miller, Byron E. Janes

Storrs Agricultural Experiment Station

No abstract provided.


The Oombulgurri Project Clancy Committee Report, D J. Clancy, P Mccosker, C Mayberry, A J. Millington, P Ryan Aug 1976

The Oombulgurri Project Clancy Committee Report, D J. Clancy, P Mccosker, C Mayberry, A J. Millington, P Ryan

All other publications

In early August the Oombulgurri community requested assistance in the following terms.

"On behalf of the Oombulgurri Community, we invite assistance in developing the grain and pasture cropping at Oombulgurri. We have experimented with peanuts, sorghum, and many varieties of vegetables. This has tested the reality of hopes to expand acreage and varieties to become self-sufficient in stock feed. The Farm and Garden Guild now needs the expertise of your services to plan a four-year programme. vie need assistance in choosing from the many options, opinions and advices available from Australia and elsewhere, for grain production, pastures, methods appropriate to …


Bulletin No 3993 - The Control Of Saffron Thistle, G. A. Pearce Jun 1976

Bulletin No 3993 - The Control Of Saffron Thistle, G. A. Pearce

Bulletins - 3000 - 3999

Saffron thistle is a primary noxious weed and is widespread throughout the drier parts of Western Australia. When growing in pasture its prickly growth habit discourages animals from grazing amongst it so that its presence results in the loss of feed. In crops it reduces yield and results in dockage when seed is found in harvested grain.


Extracts From The Department Of Agriculture's Annual Report, 1974-75, Department Of Agriculture, Western Australia Jan 1975

Extracts From The Department Of Agriculture's Annual Report, 1974-75, Department Of Agriculture, Western Australia

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

The Department of Agriculture's Annual Report for the year ended June 30, 1975, took the form of short reviews of selected activities of the Department during the year.

Some of these reviews are reprinted below to give an idea of the range of activities undertaken by the Department. A limited number of copies of the full report are available to interested organisations from the Department of Agriculture, Jarrah Road, South Perth, 6151.

In past years the Department's report has taken the form of a relatively detailed technical summary of the work of each Division. Because of the large volume of …


Land Systems Of The Brockman River Catchments, S. Porritt Jan 1974

Land Systems Of The Brockman River Catchments, S. Porritt

Natural resources published reports

The survey was conducted to gain basic information about the agricultural land use of the Brockman River Catchment. The University of Western Australia Faculty of Agriculture was interested in the area as a compact, agriculturally diverse area close to Perth which was, therefore, suitable for filed studies. The Department of Agriculture, Moora Office was interested in this study as a framework within which to improve its extension services in the area.

Both parties cooperated in investigations of the area by providing data and equipment. Field work was carried out in summer 1973-74 and data compiled by an agricultural science student …


The Mormon Role In Irrigation Beginnings And Diffusions In The Western States: An Historical Geography, Kelly C. Harper Jan 1974

The Mormon Role In Irrigation Beginnings And Diffusions In The Western States: An Historical Geography, Kelly C. Harper

Theses and Dissertations

Irrigation has played an important part in the development of the Western States. Its beginnings have often been associated with the Mormon settlement in Utah. However, irrigation had its inception in the West long before the Mormons came to the Great Basin in 1847. The spatial extent of irrigation before this date included limited acreage in nearly every Western State.

Before their arrival in the Great Basin the Mormons had become acquainted with irrigation methods. Knowledge of irrigation had diffused to them primarily from the Spanish in the Southwest. Thus, they were well prepared to begin their irrigation enterprises in …


An Intensive Edaphological Characterization Of The Soils Of Malambito Experimental Station And Its Implications In Future Agricultural Research, William L. Rubink May 1973

An Intensive Edaphological Characterization Of The Soils Of Malambito Experimental Station And Its Implications In Future Agricultural Research, William L. Rubink

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Malambito Experiment Station, in the Atlántico III project area, Department of Atlántico, Colombia, had almost no quantitative edaphological data on which to base agricultural research. Unexplainably low general yields as well as problem areas of deficient plant growth only confounded the results of field plot experiments. Intensive soil sampling and subsequent measurements of pH, ECe of the saturation extract, and the four major cations disproved the previous suggestions that the crop growth problems were related to saline, sodic, or degraded soil conditions. The Ca/Mg+K+Na ratio, although significant when correlated with plant height, was sufficient explanation for only a small …


Bulletin No 3867 - Water For Agriculture. Clearing Cloudy Or Coloured Water, N. E. Platell Oct 1972

Bulletin No 3867 - Water For Agriculture. Clearing Cloudy Or Coloured Water, N. E. Platell

Bulletins - 3000 - 3999

THE suspended material in most water supplies is generally clay, although sometimes organic matter and materials precipitated from solution, such as hydrated iron oxides, may be present. Coloured waters are those waters that are still coloured, due to dissolved coloured matter, after suspended material has been removed. Some coloured waters such as those found in swampy areas may be entirely free of suspended material.

The amount of clay or colour present is mainly of concern where the water is used for household purposes. Only rarely is the clay or colour present in such quantities that the water is undrinkable for …


Biometrical Genetics Of Insecticide Resistance:A Quantal Response Character., N Singh Dr. Feb 1968

Biometrical Genetics Of Insecticide Resistance:A Quantal Response Character., N Singh Dr.

Doctoral Theses

Geneses of the Froblems1.1.1 Resistence -A poblem in the fields of publio hosl th, agriculture, and endmel husbandry Discovery of the synthetic insecticides of residual toxcicity and their availability for civilian use after the World Mar I had presented a bright proapeot of freedom from insect bome diseases, Lindted fleld trials of chlorinated hydrocarbon insecticides in the sphere of ublic heal th had resulted in decline of the veotor/post pepulations by 'erdsia! and oonsaquentay the incidonce of vector borne diseases recorded drameatic falls. Inspired by such good results different combries and World Heoalth Organi zntion (WED) embarked upon the adventuro …


Agroclimatic Calendar For Nebraska, R. E. Neild Feb 1968

Agroclimatic Calendar For Nebraska, R. E. Neild

School of Natural Resources: Faculty Publications

Crops are planted so growth, development and harvest correspond closely to the season most favorable for yield and quality. With exception of fall-seeded small grains and some forages, most Nebraska crops are planted in the spring when temperature and precipitation are increasing.


A History Of The War Service Land Settlement Scheme Western Australia, A, R. Barrett Jan 1965

A History Of The War Service Land Settlement Scheme Western Australia, A, R. Barrett

Farm Systems and Economics published reports

In writing a history of the Western Australian War Service Land Settlement Scheme, it is pertinent to remark that land settlement projects have ever been difficult and, in fact, to date very few have been really successful. However, there has always been the necessity to accede to the desire of returning men to go on the land, also in States such as Western Australia there was and still is the need for further land development. Therefore, when the Commonwealth Government offered to provide the funds for servicemen's rehabilitation on the land the State gladly accepted and agreed to take responsibility …


Agriculture In The Lakes District : Report Of A Survey Of Farm Practices, A W. Hogstrom Jan 1964

Agriculture In The Lakes District : Report Of A Survey Of Farm Practices, A W. Hogstrom

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

At the request of the Central South Zone Development Committee a survey which covered 58 farms in the Lakes District was carried out by officers of the Department of Agriculture. Field work for the survey started in 1961.

The Lakes District supports about 70 holdings adjoining a chain of salt lakes to the east of Newdegate and Hyden but west of the No. 1 Rabbit Proof Fence.

The chain of lakes is about 70 miles long running in a N.N.W. to S.S.E. direction. The lakes are O'Connor, Carmody, Hurlstone, Varley, Gulson, Fox, Camm, King, and Pal lamp.


A Review Of Agriculture On The Esperance Downs, J L. Shier, T. C. Dunne, E. N. Fitzpatrick Jan 1963

A Review Of Agriculture On The Esperance Downs, J L. Shier, T. C. Dunne, E. N. Fitzpatrick

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

Esperance is approaching a period of rapid development based on the results of research at Esperance Downs Research Station and on farmers' properties in the area.

This article reviews the soils, vegetation, climate, agricultural development and development costs of the area.


Agriculture In Western Australia. 2. A Preview Of Future Development, A W. Hogstrom Jan 1963

Agriculture In Western Australia. 2. A Preview Of Future Development, A W. Hogstrom

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

THE agricultural areas of Western Australia produce most of the State's agricultural output.

Only isolated small areas of arable agriculture exist in the North- West and tropical areas of the State.


Some Problems Of Ergodic Theory And Information Theory., K. R. Parthasarathy Dr. Jul 1962

Some Problems Of Ergodic Theory And Information Theory., K. R. Parthasarathy Dr.

Doctoral Theses

The subject of ergodic theory which is the mathematical outgrowth of the gas problem in statistical machines and the subject of information theory which in the mathematical outgrowth of the problem of information transmission through communication channels have many interesting dual features. In ergodic theory we study collectively and individually the measure preserving transformations of a first measure space, where as in information theory we do the same with the set of all measured in variant under a fixed measurable transformation of a measurable space. The object of this thesis it to study some of the dual relations between the …