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Articles 15661 - 15690 of 16391

Full-Text Articles in Agronomy and Crop Sciences

Soil Surveys In Kentucky, Harry Hudson Bailey, Robert L. Blevins Jul 1971

Soil Surveys In Kentucky, Harry Hudson Bailey, Robert L. Blevins

Agronomy Notes

Soil surveys are a scientific inventory of the soil and land resources of an area. They locate the different kinds of soils and provide information as to their physical and chemical properties. The survey reports also contain tables and charts showing the use of the soils for agriculture, engineering, community development, recreational areas, woodland, and wildlife.

Today there is some type of soil survey activity in every county of Kentucky. The University of Kentucky has cooperative soil survey arrangements with the USDA Soil Conservation Service and the U.S. Forest Service.


Forage Sorghum And Forage Pearl Millet Performance Lexington, Kentucky 1970, Roy E. Sigafus Jun 1971

Forage Sorghum And Forage Pearl Millet Performance Lexington, Kentucky 1970, Roy E. Sigafus

Agronomy Notes

Most livestock producers, especially dairy farmers, have a need for a high quality roughage in summer when cool-season grass pastures are normally low in production. Alfalfa and clover-grass mixtures grazed rotationally, and small grain and "grass" silage or hay are common sources of summer feed . There is an increasing interest, however, in forage sorghums and forage millets for grazing or green-chop .


Performance Evaluation Of Some Warm-Season Prairie Grasses In Nebraska Environments, D. D. Warnes, L. C. Newell, W. J. Moline May 1971

Performance Evaluation Of Some Warm-Season Prairie Grasses In Nebraska Environments, D. D. Warnes, L. C. Newell, W. J. Moline

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Objectives of these experiments were to study and compare establishment of stands, fertility responses, and forage yields of certain warm-season grass varieties and experimental strains in Nebraska locations which differed in soil and climatic conditions.


Growing Season Air-Soil Temperature Relationships At Lincoln, Nebraska, Ralph E. Neild May 1971

Growing Season Air-Soil Temperature Relationships At Lincoln, Nebraska, Ralph E. Neild

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This study concerns the use of weekly average air temperature for predicting weekly average soil temperature under different conditions of surface cover during different times of year. Probabilities of weekly average air temperature for Lincoln as well as other Nebraska locations are available. These probabilities and the soil temperature prediction equations may be used in determining expected soil temperatures.


Effect Of Nitrogen Fertilization On Yield Of Burley Tobacco, J. L. Sims, W. O. Atkinson, Jones H. Smiley, Allen M. Wallace May 1971

Effect Of Nitrogen Fertilization On Yield Of Burley Tobacco, J. L. Sims, W. O. Atkinson, Jones H. Smiley, Allen M. Wallace

Agronomy Notes

Relatively large amounts of nitrogen from fertilizers and manures commonly are used in burley tobacco production. Growers are currently estimated to apply between 150 and 400 pounds of actual N per acre. Fertilization of burley with nitrogen significantly affects the physical and chemical characteristics of cured leaf and produces changes in yield and value. On most soils, leaf yields usually are increased by applications of N fertilizer, but the amount of yield increase per unit of applied fertilizer N varies widely between soils. High rates of N applied preplant or at planting often retard early plant growth, delay maturity, and …


Effects Of Soil Fumigations With Telone And Nemagon On Physio-Chemical And Ultrastructural Changes In Carrot Roots And Sweet Corn Seeds, Maureen Mei-Chu Chen May 1971

Effects Of Soil Fumigations With Telone And Nemagon On Physio-Chemical And Ultrastructural Changes In Carrot Roots And Sweet Corn Seeds, Maureen Mei-Chu Chen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Carrots (Daucus carota L. cv. Royal Chantenay) and sweet corn (Zea mays L. cv. Iochief) were grown on the Utah State University's Greenville farm in 1969 and 1970. The soil was fumigated with Telone (a mixture of 1, 3-dichloropropene and other chlorinated hydrocarbons) at the rates of 10, 20, and 30 gal/acre and Nemagon (1, 2-dibromo-3-chloropropane) at the rates of 1, 2, and 3 gal/acre one week before planting. Samples of uniformly mature carrot roots were taken for the studies of total carotenes, β-carotene, total and reducing sugars, respiration, and ultrastructural changes; and those of sweet corn seeds for the …


Effects Of Controlled Atmosphere Storage On Quality And Certain Physiological Characteristics Of Lettuce (Lactuca Sativa L., Cultivar "Great Lakes"), Christopher Chi-Chuen Yang May 1971

Effects Of Controlled Atmosphere Storage On Quality And Certain Physiological Characteristics Of Lettuce (Lactuca Sativa L., Cultivar "Great Lakes"), Christopher Chi-Chuen Yang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Lettuce heads (Cultivar "Great Lakes") were stored in different concentrations of O2 and CO2, including 1 percent O2 and 1 percent CO2, 2.5 percent O2 and 2.5 percent CO2, 5 percent O2 and 0 percent CO2, and 5 percent O2 and 5 percent CO2; temperatures of 35 and 70 F; and with or without microbe- and senescence-inhibiting chemicals and packaging. The samples were taken on the twentieth and fortieth days in the first series of experiments; and in the subsequent experiments, on the fifteenth, thirtieth, …


Bulletin No 3768 - Submitting Plants For Disease Identification, M D. Marcley Feb 1971

Bulletin No 3768 - Submitting Plants For Disease Identification, M D. Marcley

Bulletins - 3000 - 3999

THERE are several important points to remember when submitting plant material for disease identification by the Department of Agriculture's Plant Pathology Branch.

Firstly it is very important to collect a suitable sample because it is very difficult to determine the cause of a plant disease by looking at a completely dead plant. The sample should include the entire plant (before it is completely dead) including roots and soil. Then all the effects of the disease can be seen. For example leaf yellowing, dead areas of the stem, collar rot, root rot, eelworm damage, and disease of the water and food …


Nitrogen Fertilisers And Cereals, M G. Mason Jan 1971

Nitrogen Fertilisers And Cereals, M G. Mason

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

FEW aspects of cereal growing have received as much attention in the past 20 years as nitrogen fertilisers.

The recommendations and yield figures presented below are based on numerous trials in the agricultural areas of Western Australia.


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.


A New Look At Sweet Lupins In Western Australia, C M. Francis, M. L. Poole, M. H. Chopping Jan 1971

A New Look At Sweet Lupins In Western Australia, C M. Francis, M. L. Poole, M. H. Chopping

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

BECAUSE they have a seed protein content of 30 to 45 per cent., sweet lupins are playing a growing role in animal feeding, particularly in the poultry industry. Their value as a protein supplement should ensure a continued local market as at current prices they are highly competitive with soya beans in cost per unit of protein.


Calculation Of Nitrogen Rates For Quota Wheat, M L. Meaton Jan 1971

Calculation Of Nitrogen Rates For Quota Wheat, M L. Meaton

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

WHEAT delivery quotas well below previous production levels on many farms have created strong farmer interest in alternative land uses and economic production methods.


Fertilising Quota Wheat Crops, N J. Halse Jan 1971

Fertilising Quota Wheat Crops, N J. Halse

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

BEFORE wheat quotas were introduced, a farmer had to make two major decisions on fertilisers for wheat crops each year—what area to crop; and how much fertiliser to use.


Field Peas : A Crop For The Cereal Growing Areas?, M L. Poole, H. M. Fisher Jan 1971

Field Peas : A Crop For The Cereal Growing Areas?, M L. Poole, H. M. Fisher

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

No abstract provided.


Rapeseed. 1. Establishing A Healthy Crop, M L. Poole, M. G. Mason Jan 1971

Rapeseed. 1. Establishing A Healthy Crop, M L. Poole, M. G. Mason

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

No abstract provided.


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.


Sorghum Midge : Threat To Re-Cycle Cropping, D G. Shedley Jan 1971

Sorghum Midge : Threat To Re-Cycle Cropping, D G. Shedley

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

SORGHUM midge is one of the most widespread and persistent pests of any crop, Under suitable conditions, the midge can halve the yield of grain sorghum crops.


Grow Barley For Malt Or Feed, G B. Crosbie, J. A. Parish Jan 1971

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.


Management Of Dry Land Lucerne In The South-West, R Sprivulis Jan 1971

Management Of Dry Land Lucerne In The South-West, R Sprivulis

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

MANY dry land lucerne stands have been successfully established in the dairying areas of the South-West.

With good management these can remain productive for many years; poor management can greatly reduce their productive life.


Rapeseed. 3. Varieties And Their Growth Patterns In Western Australia, M L. Poole Jan 1971

Rapeseed. 3. Varieties And Their Growth Patterns In Western Australia, M L. Poole

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

RAPE belongs to the genus "Brassica" which also includes such plants as the garden cabbage, wild turnip and cultivated mustard.

The name is derived from the Latin word "rapum". meaning turnip.


The Control Of Annual (Wimmera) Ryegrass In Cereal Crops, Geoffrey A. Pearce, B. J. Quinlivan Jan 1971

The Control Of Annual (Wimmera) Ryegrass In Cereal Crops, Geoffrey A. Pearce, B. J. Quinlivan

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

The annual ryegrasses are valuable pasture plants in Western Australia, yet have become one of the major weed problems in cereal crops.

The key to cultural control of annual ryegrasses in cereal crops is an understanding of the factors which govern germination of the seed.

Covering the seed with soil keeps out light and provides a more stable moisture supply, bringing about a faster rate of germination. This is the basis of control programmes recommended in this article.

Recommendations for chemical control are also included.


Faulty Germination Of Lupin Seeds, B J. Quinlivan Jan 1971

Faulty Germination Of Lupin Seeds, B J. Quinlivan

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

THE number of lupin seed samples tested in the seed laboratory over the last few years has shown a marked increase with the increasing popularity of lupins as a cash crop.

A seed with satisfactory germination is one which produces a healthy seedling. The germination of lupin samples tested in the laboratory has varied markedly.


Market Prospects For W.A. Wheat, William John Toms, J. A. Parish Jan 1971

Market Prospects For W.A. Wheat, William John Toms, J. A. Parish

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

WITH the Western Australian wheat industry valued at $100 million per year and subject to production restrictions, can market prospects be improved?

What types of wheat should we produce? Can we increase sales by segregating specific types from the present crop? This article discusses the changes in W.A. wheat production that would be necessary to suit specific markets.


Grain Storage Pests And The Farmer, G D. Rimes, C. F. H. Jenkins Jan 1971

Grain Storage Pests And The Farmer, G D. Rimes, C. F. H. Jenkins

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

WITH the grain buying countries of the world becoming more selective, farmers must take all possible precautions to ensure that they deliver insect-free grain to country terminals.

Stringent requirements regarding insect contamination have been set down by the Department of Primary Industry for this coming season.

This article gives a complete programme for control of grain pests through preparation of buildings, storages and equipment, and treatment of grain.


Barley Staining, J A. Parish, G. B. Crosbie, A. G. P. Brown, P. A. Portmann Jan 1971

Barley Staining, J A. Parish, G. B. Crosbie, A. G. P. Brown, P. A. Portmann

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

GRAIN discolouration or "staining" is a quality defect in W.A. barley which substantially reduces the marketable value oi the crop. It also causes heavy losses to individual growers whose grain is docked or rejected.


Correct Common Names Of Herbage Plants, B J. Quinlivan Jan 1971

Correct Common Names Of Herbage Plants, B J. Quinlivan

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

NEARLY all plants have both a scientific name and a common name. Some, unfortunately, have two, three, four or more common names, and this causes a great deal of confusion, particularly in the buying and selling of pasture seeds.


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.


Trial Results 1971, M L. Poole Jan 1971

Trial Results 1971, M L. Poole

Experimental Summaries - Plant Research

This report summarizes data for the following trials:

Trial 1. Rape varieties x time of seeding - Mt Barker R.S.

Trial 2. Rape varieties x time of seeding - Gibson

Trial 3. Rape varieties x time of seeding - Badgingarra R.S.

Trial 4. Rape harvesting trial-moisture content - Mt. Barker R.S.

Trial 5. Time of seeding x rates of seeding safflower

Trial 6. Time of seeding x rates of seeding sunflower

Trial 7. Depth control drill trial on rape.

Trial 8. Method of seeding trial on rape.

Trial 9. Sandblast trial - EDRS - Failed.

Trial 10. Rape varieties x …


Rapeseed. 4. Grain Quality, G B. Crosbie, M. L. Poole Jan 1971

Rapeseed. 4. Grain Quality, G B. Crosbie, M. L. Poole

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

RAPESEED is capturing an increasing share of the world edible oilseed market.

It competes with other oilseeds such as soyabeans, peanuts, sunflower and safflower seed.

If Western Australia is to share in these markets it is essential that only high quality seed is produced.


Maintenance P And S For Pastures In The Low Rainfall Areas., Tony Albertsen Jan 1971

Maintenance P And S For Pastures In The Low Rainfall Areas., Tony Albertsen

Experimental Summaries - Plant Research

Maintenance P and S for pastures in the low rainfall area. To determine the best rates of Gypsum and a Phosphate Fertiliser required to maintain optimum pasture growth on old land. Stocking rate and rate of super on Cyprus Barrel Medic Pasture 66M30. To determine if topdressing annual medic pasture on heavy wheatbelt land increases carrying capacity or animal production per head. Also to determine the relationship between super rate and animal production. Continuous Cropping with N.P.S. To determine the number of continuous cropping on different soil types using N.P. and S fertilisers. 69NO1 T. HENDERSON· QUELAGETTING 1970, ·1971 MEAN …