Agronomy and Crop Sciences Commons^™

Linuron : A New Herbicide For Cereal Crops, Geoffrey A. Pearce

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

DURING two years of trials on both pastures and cereals Linuron has proved itself to be a valuable addition to the range of chemicals for the control of weeds in cereals.

It has a good crop tolerance safety factor and controls a wider range of weeds than most other herbicides.

Is Your Farm A Haven For Grain Pests, Department Of Agriculture, Western Australia

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

Overseas markets insist that the grain they buy must be in sound condition and free of insect pests.

Keep your farm free of stored grain pests and you will help to protect our export markets and reduce the cost of treatment that you and your neighbours will bear.

New Soybean Varieties, J. F. Shane, S. H. Phillips

Agronomy Notes

Several new soybean varieties have been released during the past few months. Many have appeared in the Uniform Soybean Nurseries at Henderson or Fulton as number strains or named varieties. The following abbreviated descriptions may be of help in comparing these newer releases with more widely known material.

Cereal Variety Testing : A New Approach, H M. Fisher

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

One hundred and twenty large scale trials will be planted at 38 centres in the Department of Agriculture's expanding cereal variety testing programme.

ACCORDING to statistical returns West Australian farmers grow well over 100 varieties of cereals. More than 80 of these are different varieties of wheat.

Only a few varieties are widely grown so one might ask why farmers continue to grow so many of the less popular types.

The obvious answer is that they believe such varieties to be both suitable and profitable for their particular conditions.

Summer And Autumn Rainfall In Relation To Epidemics Of Wheat Stem Rust In Western Australia, W A. Shipton

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

High summer and autumn rainfalls, followed by rust infection of volunteer plants and favourable conditions during late winter and spring, lead to rust epidemics.

WIDESPREAD outbreaks of wheat stem rust are rare in Western Australia.

Early Spraying Esential For Webworm Control, J A. Button

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

Results of trials conducted during the last two seasons have emphasised the need for very early treatment of webworm infested crops.

Where heavy infestations occur every effort should be made to apply treatments during the first fortnight after crop emergence

Cultivation : Does Haste Mean Waste?, H M. Fisher

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

Many farmers believe that increasing the speed of cultivation and seeding implements will cause deterioration of soils and reduced crop yields.

In a three-year trial on clover ley land at Wongan Hills higher cultivation speeds tended to increase rather than decrease wheat yields. There was some deterioration in the physical structure of the soil.

Agriculture In Williams-West Arthur : Report Of A Survey Of Farm Practices, A W. Hogstrom

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

THIS article summarises the results of a survey of 81 farms in the Williams and West Arthur Shires, carried out by officers of the Department of Agriculture at the request of the Central South Zone Development Committee.

Field work for the survey started in 1961.

Irrigation In The South-West : Report On Government-Controlled Areas, 1965-66, G Gauntlett

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

LARGE scale irrigation in the south-western part of Western Australia is confined to the coastal plain, west of the Darling Range where the three irrigation districts of Waroona, Harvey and Collie have been established.

The 1965 Ord River Cotton Crop, G D. Oliver, A. W. Hogstrom

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

THE financial results of 18 cotton growers in the Ord River Valley during the 1965 season were obtained during a survey conducted in August, 1965.

All farmers who have been allocated blocks and who grew cotton in 1965 were included in the survey.*

Controlling Annual Grasses In Spring Seeded Alfalfa With Eptc, J. F. Freeman

Agronomy Notes

Many Kentucky farmers plan to sow alfalfa in early spring on a prepared seed bed. A main objective is to avoid or reduce most of the damage of alfalfa weevil on the first-year crops . Eptam 6 E sprayed on the prepared seed bed at rate of 2 quarts in 10 to 20 gallons of water per acre and disked in 3-4 inches deep right behind the sprayer usually gives good control of annual grass weeds and some control of broadleaf weeds as well. A second disking, crosswise to the first, is needed for thorough mixing of the herbicide with …

Controlling Chickweed And Henbit In Alfalfa, J. F. Freeman

Agronomy Notes

Chickweed and henbit weeds are bad in alfalfa this fall. DNBP (premerge or Sinox PE) sprayed on infested fields at rate of 1 to 3 qt in 20 to 40 gallons of water per acre may destroy the weeds without harm to the dormant alfalfa. Use the higher rate if chickweed is matted on the ground or if henbit is heavy in the stand. Spray only when the temperature is 55 to 60 degrees or warmer and fair weather is predicted for 12 hours after treatment. The 1-qt rate applied in early fall when chickweed is very small (not until …

Where Is Moly?, A. L. Hatfield

Agronomy Notes

Is moly in hiding or has it gone down the river? Recent tests in Graves County suggest that it is probably just in hiding.

Moly (molybdenum) is of importance to Kentucky farmers because of its unique relation to soil acidity and legume growth. Many other trace or minor elements necessary for plant growth are most available to crops under acid soil conditions. Molybdenum becomes more available as the soil acidity approaches neutrality.

Agronomy Notes, No. 32, S. H. Phillips

Agronomy Notes

Silo Fillers Disease, caused by nitrogen dioxide, was discussed in a joint Agronomy and Pharmacology release. Dr. Mark Luckens, College of Pharmacy, has prepared strips of potassium iodide - starch test paper to assist in detecting this deadly gas in silos and feeding areas. These strips are small (5/8" x - 2") and change to a blue color when in contact with nitrogen dioxide. We have 300 strips available for use by County Agents.

Agricultural Limestone In Kentucky, George D. Corder

Agronomy Notes

Kentucky farmers invested about $6 million in agricultural limestone in 1964. However, much more lime than this should have been used if farmers get the most economical crop production and the most efficient use of fertilizers that are applied or the fertility that is already in the soil.

Small Grain Planting Information, S. H. Phillips

Agronomy Notes

No abstract provided.

Topdress Alfalfa This Fall, George D. Corder

Agronomy Notes

Good stands of alfalfa should be fertilized even though the alfalfa weevil is causing some concern. This fall, say after the last harvest, is a good time to topdress with phosphate, potash and boron fertilizers.

1964 Drought In Connecticut, The, Byron E. Janes, Joseph J. Brumbach

Storrs Agricultural Experiment Station

No abstract provided.

Soil Test Summary For 1964 Now Available, Harold F. Miller

Agronomy Notes

The number of soil samples tested in soil testing laboratories under the supervision of the College of Agriculture in 1964 showed an increase of 6,028 samples. In 1963, 46,444 samples were tested compared to 52,472 in 1964. These figures do not include the thousands of samples tested in commercial laboratories.

Effect Of Fluoride On Respiratory Enzymes In Soybean Leaves, Arthur Chiu-Eng Lee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There are many reports relating the effects of fluorides on plant respiration. Fluoride has been regarded as an inhibitor of respiration. Warburg et al. (1942) demonstrated that fluoride inhibited enolase activity, therefore, decreased the respiration rate of yeast. Miller (1958), found a similar inhibition of enolase from pea seed. Bonner (1948), Bonner and Wildman (1946), and Laties (1949) reported that the fluoride ion in culture solutions reduced the respiration rate in Avena Coleoptile, spinach leaves and barley roots. Since the inhibition was reversed by the addition of pyruvate, they concluded that the inhibition of respiration was due to the inactivation …

Soil Surveys In Kentucky, Harry Hudson Bailey

Agronomy Notes

Twenty-two Kentucky counties have been surveyed and published using the classification scheme of the U.S. Department of Agriculture. These counties and the dates of the field survey are: Adair (1961), Bath (1959), Calloway (1937), Christian (1912), Clark (1961), Fayette (1931), Fulton (1961), Garrard (1921), Graves (1941), Jessamine (1915), Logan (1919), McCracken (1905), Madison (1905), Marshall (1938), Mason (1903), Mercer (1930), Muhlenberg (1920), Rockcastle (1910), Scott (1903), Shelby (1916), Union (1902), Warren (1904). The maps and reports on Adair, Bath, Calloway, Clark, Fulton, Graves, Logan, Marshall and Mercer Counties are still available (1965) through: Agronomy Department, University of Kentucky, Lexington. The …

Irrigation And Fertilization Practices For Seed Production From Established Stands Of Side-Oats Grama, D. E. Smika, L. C. Newell

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The objectives of this study of grass seed production were to determine the response of an established stand of a warm-season grass to irrigation and fertilizer practices with regard to the specific practices needed to produce maximum quantity of adequate quality seed per acre. Side-oats grama was chosen for the study because of the availability of adapted varieties.

Effect Of Gravity Separation On Cottonseed, Norman Justus, R. H. Loe, J.B. Dick, M. N. Christiansen

All Articles

No abstract provided.

Forage Sorghums, W. H. Stroube

Agronomy Notes

Wide interest and publicity relative to summer annual grasses has developed with the release, availability and publicity of forage "sorghum-sudan hybrids."

There are many varieties of sorghum-sudan crosses and similar materials currently on the market making intelligent recommendations concerning specific varieties most difficult. Our experience and that of workers in some other states indicate that most of these varieties behave somewhat similarly. One of the best ways to choose a variety in this case, is to buy a variety that you or a neighbor have had favorable experience with and buy from a known reputable dealer.

Appraisal For Combined Pea Aphid And Spotted Alfalfa Aphid Resistance In Alfalfa, W. L. Howe, W. R. Kehr, C. O. Calkins

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Sources of combined resistance to spotted alfalfa and pea aphids were found in Ranger alfalfa and its parental strains, foreign plant introductions, clones and their progenies. Ranger alfalfa appeared to be a good source for selection of plants with resistance to both aphids.

The Effect Of Light On The Growth Of Soybean Seedlings, Mary Abrahamsen, T. W. Sudia

Journal of the Minnesota Academy of Science

ABSTRACT- During the course of 13 days of germination and growth, the dry weights of roots, hypocotyl, and epicotyl increased in soybeans grown both in the light and in the· dark. The roots of etiolated 13-day-old soybeans were only 50 per cent of the weights of roots from similar plants grown in the light. The epicotyls of etiolated plants were only 18 per cent of the dry weight of epicotyls of light-grown plants, but the hypocoyl weights of etiolated plants were greater than those grown in the light. Cotyledon dry weight of light-grown plants was reduced by 70 per cent …

Nodulation Of Legumes On New Light Land. 1. Survival Of Rhizobia On Inoculated Pelleted Seed Held For Varying Periods Before Sowing Into Dry Soil, O M. Goss, W. A. Shipton

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

MOST of the light land areas being opened up in Western Australia are very sparsely populated with the rhizobial bacteria so essential for successful legume establishment.

Seed inoculation is therefore a necessity.

Farmers often have to resort to dry sowing because of the large acreages being planted or late opening rains.

Dairy Farming In The Busselton-Margaret River District. Part 3. Fodder Conservation, R A. Bettenay

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

An analysis of fodder conservation indicates that farmers in the Busselton-Margaret River district are conserving less than half the amount of fodder considered desirable.—Third in a series reporting a survey of farm practices in the district.

Nodulation Of Legumes On New Light Land. 4. Rhizobial Strains For Pasture Establishment, O M. Goss, W. A. Shipton

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

LEGUMES are the basis of improved pastures in Western Australia.

Successful establishment of these legumes depends on the presence in the soil of suitable bacteria which will invade the roots and develop nodules in which nitrogen fixation is carried out. The nitrogen compounds produced are utilised by the plants, making them independent of soil nitrogen.

At the end of the season, the decomposition of the plant residues improves soil fertility.

Recommended Oat Varieties, J L. Mcmullan

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

THE varieties Kent, Ballidu, Avon and Fulmark are recommended for sowing in 1965 by the Department of Agriculture and the Coarse Grains Advisory Committee.

The areas suitable for these varieties, when planted for various purposes, are given in the map and tables.