Agronomy and Crop Sciences Commons^™

The Effect Of A Bacteriophage On The Competition Of Rhizobium Japonicum Strains For Nodulation Of Glycine Max (L.) Merr, Lori Kelley

Masters Theses

The symbiotic relationship between Rhizobium japonicum (Kir.) Buch. and Glycine max (L.) Merr. was the concern of this thesis. This relationship occurs naturally in soybean fields. In the field there are many different strains of Rhizobium. Some of these strains fix atmospheric nitrogen more efficiently than others resulting in a higher crop yield. The problem is the more efficient nitrogen fixers are out-competed by less efficient nitrogen fixers. In order to solve this problem the more competitive strains have to be controlled. There are two main ways to do this. One is to increase the number of the desired …

Documentation Of Whole-Farm Model For The Eastern Wheatbelt Of Western Australia, Ross S. Kingwell, David J. Pannell, David. A. Morrison

Grain and other field crops published reports

The Eastern Wheatbelt Model (EwM) is a hypothetical farm model, intended to be representative of farms in the eastern wheatbelt region. It is a model of an 'average' farm in an 'average' season. Nevertheless it is possible to substitute the resource mix of a 'real' farm for the •average' and to substitute various types of season for the 'average'.

Assumptions of 'average' farm resources and •average' season are based on opinions by WADA researchers and advisers. For the EWM, researchers and advisers at Merredin prescribed average resources for an eastern wheatbelt farm receiving a 300 mm average rainfall including 210 …

Intsormil 1985 Annual Report: Fighting Hunger With Research, John M. Yohe

INTSORMIL Impacts and Bulletins

This annual report covers the activities for program Year 6, the final year of operation under the initial grant document.

The CRSP's present a unique model for conducting agricultural research in collaboration with developing country agricultural research programs.

The INTSORMIL program also demonstrates these characteristics:

-- INTSORMIL has the dual goal of improving agriculture in the developing countries and in the United States.

- The seven participating U.S. institutions agree to contribute at least 25% of the cost of the CRSP from non-federal resources (in money or in kind), justified on the basis of benefits that can accrue to their …

Fighting Hunger With Research, Judy F. Winn

INTSORMIL Impacts and Bulletins

The Sorghum/Millet Collaborative Research Program, INTSORMIL, combines the resources and research talent of host country research institutions, eight land grant universities, and the Agency for International Development. Its objective is to improve world-wide sorghum and millet production and utilization. This 5-year report shows that the international sorghum-millet research program is one in which researchers from the U.S. and host countries can effectively collaborate. The INTSORMIL External Evaluation Panel and other reviewers have and will continue to recommend program strengthening changes. Adjustments in research program content and scientist involvement will result as plans are made for future research.

Sorghum and millet …

Notes: Differences Among Nematode Populations In Tall Fescue Pastures In North, Central, And South Alabama, Jeffrey F. Pedersen, R. Rodriguez-Kabana

Department of Agronomy and Horticulture: Faculty Publications

Surveys of nematode populations in tall fescue (Festuca arundinacea Schreb.) pastures in north, central, and south Alabama in 1982 and 1983 showed significant differences in frequency of occurrence of many nematode species by geographical region. Although nematode damage has been implicated in the poor adaptation of tall fescue to the sandy soils of the extreme Southeast, many plant parasitic nematode species occurred in low frequency in south Alabama pastures. There were significant differences in the frequency of occurrence of Paratrichodorus christiei (Allen) Siddiqi by region. This nematode occurred with relatively high frequency in south Alabama in both years. There were …

Effects Of Herbicides And Treatment Dates On The Establishment Of Sod-Seeded Red Clover, Birdsfoot Trefoil, And Alfalfa, R.L. Nichols, R.A. Peters, B.G. Mullinix Jr.

Storrs Agricultural Experiment Station

No abstract provided.

Ord River Irrigation Area Of Western Australia - Background Information For Prospective Farmers, Western Australian Department Of Agriculture

Farm Systems and Economics published reports

The Ord Irrigation Project is located in the Shire of Wyndham-East Kimberley in the far north of the State of Western Australia.

The potential for harnessing northern rivers was realised many years ago. In 1941, a small experimental farm was established on the Ord, and possible dam sites were investigated upstream.

In 1945, this small experimental farm was relocated and the Kimberley Research Station was established on Ivanhoe Plain, part of the 12,000 hectare area now irrigated from Lake Kununurra above the Diversion Dam.

By 1958, the Western Australian Government was convinced of the viability of an irrigation scheme on …

Evaluation Of S-734 And Bas 9052 For Control Of Johnsongrass (Sorghum Halepense) In Soybeans (Glycine Max), Julio Beingolea Ochoa

Masters Theses & Specialist Projects

Johnsongrass is one of the more limiting factors in soybean production and is the most serious weed problem in the Southeastern United States. Actually, different herbicides are used in johnsongrass control, and still there are new herbicides which are being tested. Two experimental herbicides for johnsongrass control in soybeans are BAS 9052 and S-734.

The experiments were conducted in 1980 and 1981 with the objective to evaluate the effectiveness of S-734 alone and in combination with mefluidide and BAS 9052, BAS 9052 applied early or late postemergence, trifluralin, alachlor, and fluchloralin for seedling and rhizome johnsongrass control.

In both areas …

Ord River Irrigation Area Of Western Australia, Western Australian Department Of Agriculture

Farm Systems and Economics published reports

The Ord Irrigation Project is located in the Shire of Wyndham-East Kimberley in the far north of the State of Western Australia.

The potential for harnessing northern rivers was realised many years ago. In 1941, a small experimental farm was established on the Ord, and possible dam sites were investigated upstream.

In 1945, this small experimental farm was relocated and the Kimberley Research Station was established on Ivanhoe Plain, part of the 12,000 hectare area now irrigated from Lake Kununurra above the Diversion Dam.

By 1958, the Western Australian Government was convinced of the viability of an irrigation scheme on …

Nutritive Evaluation Of Warm-Season Grasses In Connecticut, R.W. Taylor, D.W. Allinson

Storrs Agricultural Experiment Station

No abstract provided.

Ord River Irrigation Area - Potential For A Sugar Cane Industry In Western Australia, Department Of Agriculture, Western Australia

Farm Systems and Economics published reports

The Ord River Irrigation Area is in the Kimberley Region of Western Australia, 3,200 kms from Perth, the State’s Capital City.

The area is located in the arid tropics with a climate suitable for high plant growth rates provided water supply is adequate.

With only 12,000 ha of land developed out of a potential 72,000 ha of clay soils the area has the potential for further development of a major irrigated agricultural enterprise.

The Ord River Irrigation Project has been developed for commercial agriculture following the construction of a diversion dam in 1963, and a major dam in 1974, The …

Field Techniques Manual, Department Of Agriculture, Western Australia

All other publications

Contents : Vol. 1. Crop and pasture research--Vol. 2. Animal production--Vol. 3. Horticulture--Vol. 4. Management of natural resources.

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.

The Effect Of The Herbicide Metolachlor On Nutrient Levels In Zea Mays L., Tamsey Dawn Warren Ellis

Biological Sciences Theses & Dissertations

An investigation of the effect of metolachlor, a chloracetamide herbicide released for agricultural purpose during the Spring of 1977, on plant tissue levels of phosphorus, potassium, calcium and magnesium in juvenile sweet corn and the recovery rate of sweet corn exposed to metolachlor from any plant nutrient effects when the herbicide was removed.

An increase of metolachlor concentration caused a progressive reduction in growth (height and dry weight) of the leafy portion of juvenile sweet corn. At metolachlor concentrations of 0.16 ppm and higher pronounced stunting and twisting were observed in the plants.

There was a progressive reduction in the …

Relationship Of Vigour Tests And Seed Lots To Cotton Seedling Establishment, U. R. Bishnoi, James C. Delouche

All Articles

No abstract provided.

Crop Monitoring Handbook 1979, Department Of Agriculture, Western Australia

Grain and other field crops published reports

Prepared by the Plant Research Division of the Department of Agriculture for farmers who wish to keep detailed records of crop growth with the aim of achieving higher yields in the future.

Bulletin 3992 - Nitrogenous Fertilisers For Cereal Production, M. G. Mason

Bulletins - 3000 - 3999

Because fertiliser prices continue to rise, it is becoming increasingly important to understand what affects the response to fertilisers by crops.

Among the many factors influencing crop response to nitrogen applications, the most important are the season, soil type, paddock history, time of application and source of nitrogen. Before deciding whether to use nitrogen on a cereal crop, which source to use and at what rate, the farmer needs some understanding of how these factors work.

Farm Management Information - Comparative Costs And Return Whole Farm Budgets, Machinery Costs, Gross Margins, A. F. Herbert

Farm Systems and Economics published reports

The cropping costs, gross margins, and whole farm budgets contained in this booklet are published to assist you in your selection of enterprises on the farm, and to give background information for prospective farm purchasers in the Esperance/Dundas area.

The worked examples have attempted to approximate reality. However, individuals do things differently and it is pointless to generalize. The information presented should only be used as a guide. You need to prepare your own budgets for your own situation using your own assumptions and up-to-date costs and prices.

Services of the Department of Agriculture are readily available should you wish …

Grain Crop Variety Trials Western Australia 1978-1979, H. M. Fisher, G. B. Crosbie

Grain and other field crops research reports

The regional crop variety testing programme conducted by the Western Australian Department of Agriculture covers the final two stages of a four stage process of evaluating locally produced crossbreds and introduced material comprising:-

Plant Breeder Trials

Stage 1: Initial small plot yield tests on early generation material - 1 to 3 sites. Stage 2: Small plot yield tests on selected material (F5 derived) - 3 to 4 sites.

Regional Testing Programme

Stage 3: Large scale preliminary trials - 9 to 10 sites. Stage 4: Large scale final yield trials - 40 to 50 sites.

The basis of the regional programme …

Effects Of Row Width And Seeding Rate On Yield And Other Agronomic Characteristics Of Three Soybean Cultivars, Russell Kithcart

Masters Theses & Specialist Projects

Soybeans have traditionally been grown in rows wide enough to allow mechanical cultivation and to increase lodging resistance. Improved cultivars and herbicides have permitted farmers to obtain yield advantages from narrower rows. The growth response of soybeans to variations in row width and seeding rates depends upon the cultivar and geographic location.

“Williams,” “Mitchell,” and “Essex” cultivars were planted at row widths of 18, 36, 54, and 72cm. at seeding rates of 33, 67, 100 and 134 kg/ha in multi-row plots. Data were collected from each plot for seed yield, lodging, plant height, height of lowest pod, seed and population …

Bulletin No 3573 - Wheat Diseases In Western Australia, A. G. P. Brown, G. C. Mac Nish

Bulletins - 3000 - 3999

Diseases caused by pathogenic organisms can seriously affect the yield of wheat. Some diseases are comparatively rare whereas others occur over a large area of the wheatbelt year after year.

it is important to be able to identify diseases correctly so that the appropriate control measures can be applied, In the following article the diseases of wheat caused by pathogenic organisms are illustrated, with their symptoms described, and where possible, the control measures given.

Research For Connecticut By The Storrs Agricultural Experiment Station

Storrs Agricultural Experiment Station

No abstract provided.

Bulletin 3990 - The Narrow-Leafed Lupin In Western Australia, J. S. Gladstones

Bulletins - 3000 - 3999

Lupins are new as a commercial crop, but may be very old as a food plant. Types of the Mediterranean white lupin (Lupinus albus L.) have been part-developed and used as a subsistence crop for 3 000 years or more. Likewise the pearl lupin (L. mutabilis Sweet) has been grown for many centuries in the Andean Highlands of South America. In both cases the seeds are boiled and steeped in water for several days to rid them of their bitter, somewhat toxic alkaloids. They are then used directly as a valued protein source in human diets.

Bulletin No 4007 - Grasses In South Western Australia, J G. Paterson

Bulletins 4000 -

IThe grasses comprise one of the world's largest families of flowering plants, with over 500 groups or genera containing well over 5000 individual types or species distributed throughout the world. About 125 groups have been recorded in Western Australia but it is probable that the list is far from complete. About one third of these have ° been introduced from overseas.

The purpose of this bulletin is to describe those grasses which are more commonly found in the south-west of Western Australia. Also, as many people are interested in knowing the name and nature of a grass when they find …

Evaluation Of Herbicides For Suppression Of Rhizome Growth From Johnsongrass (Sorghum Halepense L.) In Corn And Soybeans, John Oakes

Masters Theses & Specialist Projects

Johnsongrass (Sorghum halepense L.) presents a serious problem in the production of corn and soybeans in Kentucky.

Various rates of the thiocarbamates, dinitroanilines, carbamates, amides, ureas, and triazines were used in association with the crops corn (Zea mays L.) and soybeans (Glycine max L.) to determine the degree of suppression on rhizomatous johnsongrass infesting the previously named crops.

Suppression was determined by selecting areas within each treated plot, counting the number of culms, then harvesting johnsongrass rhizomes. Dry weights of rhizomes were then determined as a measure of rhizome suppression.

Results show that of …

Bulletin No 4023 - Pasture Plants Of The Western Australian Shrublands, D G. Wilcox, J G. Morrissey

Bulletins 4000 -

The use of the shrubland pastures of Western Australia began in 1861 when Mr. W. Burges of the Bowes Station near Northampton sent a flock of sheep along the Greenough River to graze the country where Yuin station is today. Following his example, a number of other enterprising men established grazing areas along the river courses of this harsh and often drought stricken and forbidding land. By 1925, virtually all of the pastoral land of value in the mulga zone west of the Gibson Desert and the Great Victoria Desert had been developed, and by 1934, over four million sheep …

Production And Utilization Of Sunflower Food Plots At Shelbyville Wildlife Management Area, Illinois, Duane T. Dust

Masters Theses

Three sunflower (Helianthus annuus) fields from 3.2 ha to 1.0 ha in size, planted on the Shelbyville Wildlife Management Area, Illinois were analyzed for seed production and utilization by birds. Seed in heads and on the ground were sampled and species and numbers of birds in the fields were censused at two week intervals from September, 1976 to February, 1977. Decline in seed availability was most rapid in the smallest field and least rapid in the largest field. Fields and portions of fields adjacent to wooded cover were also utilized more rapidly. American goldfinch (Spinus tristis) …

Bulletin 4002 - Trickle Irrigation For Farms, K Cole

Bulletins 4000 -

The continued demand for, and use of trickle irrigation is proof of the inherent potential and performance of this form of irrigation.

Originally it was used in glasshouses and nurseries but it is now widely adapted to orchards, vegetable and other horticultural small crops and home gardens.

Although research is being actively pursued in the design and use of trickle irrigation it is now beyond the experimental stage as a technique and is an accepted and proven technique of watering many types of crop.

Lysimetric Calibration Of The Bowen Ratio-Energy Balance Method For Evapotranspiration Estimation In The Central Great Plains, Blaine L. Blad, Norman J. Rosenberg

Department of Agronomy and Horticulture: Faculty Publications

Most reports show good agreement between evapotranspiration (ET) rates estimated by Bowen Ratio-Energy Balance (BREB) method and rates measured with lysimeters, although underestimation by the BREB model has occasionally been reported. This study was conducted to evaluate the performance of the BREB technique in the climatic conditions characteristic of the central Great Plains, a region where a significant proportion of the energy consumed by evapotranspiration is supplied from advected sensible heat.

Agreement between the BREB method and lysimetric measurements of ET is good during non-advective periods but during advective periods the BREB model underestimates ET by about 20%. Data collected …

Deterioration Of Seed Corn During Storage, Nirmal S. Gill, James C. Delouche

All Articles

No abstract provided.