Agronomy and Crop Sciences Commons^™

Summary Of Trial Results - 1973, N. R. Mckeown

Experimental Summaries - Plant Research

Trials in Progress During 1973 observations were made on 11 small plot legume species· trials and 11 grazing trials. In 1974 the small plot trials will remain the same and the grazing trials will be reduced to 8. This report summarizes the results from the grazing trials under the following headings:- Seasonal Conditions. Grazing Experiments. 68M023 - Legume Grazing Management·Trial,. West Moora. 71LG17 - Comparison of Production from Cyprus Medic and Volunteer Pasture. Comparison of Production from Tornafield Medic, Serradella and Subterranean.Clover. 70ME2 - Walgoolan 71WH13 - Wongan Hills 69M017 - Watheroo 69LG24 - Lake Grace. Low Oestrogen Legume Grazing …

Market Prospects For Rapeseed : 1972-73, R J. Guyton

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

Interest in rapeseed as an alternative crop in the agricultural region of Western Australia was reflected in the area sown in 1971, some 70,000 acres, and an initial export contract of 10,000 tons made in January 1972.

This market report draws upon information released by the Department of Primary Industry and Department of Trade and Industry (both located in Canberra) and research within the Department of Agriculture. Its purpose is to outline future prospects for rapeseed as an aid to decision making for the 1972 season.

1973 Time Of Planting And Rate Of Seeding On Lupin Yield, G Walton

Experimental Summaries - Plant Research

Comments on results - Of the four time of planting trials two definitely showed superiority of earlier seeding (73BA5, 73E6). The two trials in the Southwest (73BR14 and 73MT7) gave highest yields with June sowing compared to May. Three trials (73BR14, 73E6 and 73BA5) appear to have a Variety x Time interaction for plant density, but no definite trend for either Uniharvest or Unicrop although later sowing reduced plant density. Seeding rates in excess of 82 kg/ha gave the highest yields in all trials. The rate of seeding experiments (73BA5 and 73MT7) show that the best crop density for yield …

Lupin Split Seed Pilot Trial - Esperance Downs Research Station., J. W. Gartrell

Experimental Summaries - Plant Research

Lupin Split Seed Pilot Trial. Esperance Research Station 1974. % of seed classed according to size and degree of splitting. Manganese - S Richardson - Dandaragan 73PE2

Observation On Natural Outcropping In The Tomato (Lycopersicon Esculentum L.) In Northwest Arkansas, Alvin F. Reeves

Journal of the Arkansas Academy of Science

A single tomato plant homozygous for the recessive anthocyaninless mutant, ae, was grown in the middle of an experimental tomato plot at the University of Arkansas Agronomy Experimental Station Farm in Fayetteville. Progeny tests of seeds harvested from this plant indicated that only 0.7% of the seeds were the result of outcrossing to other plants

A Study Of Energy And Water Transfer In Irrigated And Nonirrigated Sorghum, Loyd Raymond Stone

Electronic Theses and Dissertations

Approximately 70% of all precipitation is lost through percolation out of the root zone or by evapotranspiration (evaporation from the soil plus transpiration from plants). Estimation of these water loss processes has generally been on a small scale due to the cost and time required for their measurement. Development of remote thermal scanners has provided a possible means of estimating water loss from surfaces by using the surface temperature. This study was designed (a) to determine water movement patterns in the soil profile and (b) to evaluate the feasibility of using canopy temperatures in estimating evapotranspiration rates from cropped areas. …

Growth, Development, And Plant Temperature Characteristics Of Oats Under Water Stress, Bikkar S. Sandhu

Electronic Theses and Dissertations

Little information is available on sensitivity of oats to water deficits. Therefore, this study was designed (a) to investigate physiological response of oats to water stress, (b) to determine quantitative effect of water deficits on growth and yield components of oats, and (c) to evaluate plant temperature of oats as a water stress index. Spring oats (Avena sativa L.) grown under field conditions were subjected to 10-11 day stress at boot stage, at anthesis through early grain formation stage and at both stages in combination. Diurnal and seasonal patterns of relative leaf water content, leaf diffusion resistance, and net photosynthesis …

Extractable Nutrients And Ph Values From Nine Soil Associations Of Arkansas, A. W. Tennille

Journal of the Arkansas Academy of Science

Soil samples from the 0-10-cm and 10-20-cm depths were obtained from nine of the 11 soli associations of Arkansas. Sites sampled had a heavy forest cover and showed no evidence of cultivation. Routine soil tests showed that pH values ranged from a low of 4.38 for the Loessial Hills to 5.83 in the Ozark Highlands. Potassium ranged from 69 to 206 kg/ha. Phosphorus was very low in nearly all sites; the extremes were 9 and 83 kg/ha, but most values were less than 30 kg/ha. Calcium ranged from 122 to 1,523 kg/ha. The data indicate that when woodland areas are …

Biological Control Of Heliothis In Sorghum, P J. Michael

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

This research looks at Biological control of Heiiothis in sorghum, a preliminary report.

Farm Operations Management, H E. Fels, A. W. Hogstrom

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

The main defence of Australian farmers against the cost-price squeeze has been to increase productivity. The tendency is to run more and more stock per man and to grow more crop per man.

Some farmers run unusually large numbers of animal units per man-year.

The operations of 16 such farmers over one year were examined to find out whether it had been profitable for them to reduce labour inputs to such an extent.

Crop Variety Recommendations For 1974, Department Of Agriculture, Western Australia

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

Crop variety recommendations are reviewed each year and reflect trends in the market situation and the availability of new varieties with specific applications and advantages.

The following recommendations for 1974 cover a wide range of grain crops grown in the agricultural areas of W.A.

Drying Soybeans With Heated Air, Douglas G. Overhults, G. M. White, H. E. Hamilton, I. J. Ross

Biosystems and Agricultural Engineering Faculty Publications

No abstract provided.

Summary Of 1972 Seasonal Results "Decide" Superphosphate Rates On Pastures, J. W. Bowden

Experimental Summaries - Plant Research

A total of 53 pasture trials were topdressed. Of these, 37 trials were quantitatively assessed at different times during the growing season. Of the 15 wheat trials sown, only four trials gave useful results because of multiple drilling techniques used on most trials. Until the trial results have undergone comprehensive statistical analysis, no conclusions can be drawn. about the levels of response or "optimum" rates of superphosphate application at individual sites. However, because of the very short growing season in 1972 responses were generally poor. It appears that nil superphosphate application would have been optimum for animal production in the …

1973 Rates Of Phosphate On Lupin Yield, G Walton

Experimental Summaries - Plant Research

Comments on Results - New Land sites (Graphs 1, 2) - The three sites were very responsive with the point of inflexion about 600 kg/ha super rate (similar to 1972 result). The seed x super rate interaction shows the quicker response to super with higher seeding rates. Low Super Bank (800 kg/ha) (GRAPH 3) - The two sites showed very little response to super applied. On the Eradu sandplain no response to super for either Unicrop or Wheat. On the Watheroo yellow sandplain (73M015) the two lupin cultivers and the wheat gave different responses. High Super Bank (>1 OOOkg/ha) …

Mineral Nutrient Levels In Lupin Crops Affected By 'Split Seed'., M. W. Perry

Experimental Summaries - Plant Research

Table 1. Survey of Nutrient Levels in Whole Seed. Table 2. Nutrient Levels in Tests and Embryo. Table 3. Effect of Sprays. Table 4. Nutrient Levels in Vegetative material. Table 5. Nutrient Level in Vegetative material (Soil type comparisons at paired adjacent sites) - Samples of M.L. Poole.

Progress And Data For Investigation, D Tennant Dr

Experimental Summaries - Plant Research

1. Fallow Re-assessment. 2. Root Penetration and Distribution in Wheat. 3. Moisture use by Lupins, Rape and Wheat. 4. Variety Investigations in respect of Root Growth. 72M9, 73MO41. Locations: Lancelin - 73M041, Wyalkatchem 73N038, Bering Siding - 73N040 (2), Tammin - 73N041, Cunderdin - 73no42, Meckering - 73N043, Bodallin - 73ME26, Walgoolan - 73ME27, Ulva Siding - 73ME29, Shackleton - 73ME30, Yelbeni - 73ME31 (3).

1973 Long Term Rotation Trials, Ian Rowland

Experimental Summaries - Plant Research

The results shown are the yield of grain harvested from crops grown after various lengths of pasture ley. Experiments - W56H, 66M29, 67BA6, 68E5, 68SG5, 69GE20,

Summary Of Experimental Results, R Weir

Experimental Summaries - Plant Research

Wheat protein survey - Seeding rate x grain protein - 72NA33, Seeding rate x grain protein - 72M28, Temperature effects on flower set of lupin - 72GL4.

The Art And Science Of Plant Breeding, John Sylvester Gladstones

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

Whether he has known it or not, man has influenced the evolution of plants throughout his whole existence. In the pre-agricultural state he collected fruits and seeds from plants chosen for their useful or desirable qualities, and dispersed them wherever he went. With the neolithic revolution and the development of agriculture, some of these plants were taken into cultivation.

Consciously or unconsciously he selected types with higher yield, which germinated readily when planted, and whose seeds stayed in the head at maturity rather than being shed as in the wild grasses and legumes. Over thousands of years this "guided evolution" …

Winter Wheat Cultivar Performance In An International Array Of Environments, J. E. Stroike, V. A. Johnson

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The International Winter Wheat Performance Nursery organized in 1968 by the Nebraska Agricultural Experiment Station in cooperation with the Agricultural Research Service, U.S. Department of Agriculture, under a contract with the Agency for International Development, U.S. Department of State, has presented a unique opportunity to measure the performance and stability of 28 winter wheat cultivars over an international array of environments. Computations of three parameters for yield, selected agronomic traits, and grain protein and lysine were made from nursery data recorded in 1969 and 1970.

Late Summer Establishment Of Alfalfa And Birdsfoot Trefoil As Related To Date And Method Of Seeding, D.W. Allinson

Storrs Agricultural Experiment Station

No abstract provided.

Results Of The Second International Winter Wheat Performance Nursery, J. E. Stroike, V. A. Johnson, J. W. Schmidt, P. J. Mattern

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The Second International Winter Wheat Performance Nursery was grown in 1970 at 38 sites in 23 countries. Four of the sites were in the southern hemisphere. Data were reported from 36 sites. The same 30 varieties evaluated in the First International Winter Wheat Performance Nursery were grown in this Second International Winter Wheat Performance Nursery. Twenty-eight varieties were winter wheats; two were spring wheats. Data on grain yield, test weight, maturity, plant height, lodging, shattering, winter survival, diseases, grain protein content and lysine content for 1970 are reported. Two-year mean data summaries also are reported.

Date Of Planting Studies Of Winter Wheat And Winter Barley In Relation To Root And Crown Rot Grain Yields And Quality, C. R. Fenster, M. G. Boosalis, J. L. Weihing

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This study was undertaken to determine the nature of root and crown rot of wheat and to ascertain the proper time to plant winter wheat so as to conserve moisture, minimize root and crown rot and thereby maximize yield. Studies conducted for 15 years at several locations in western Nebraska reveal that planting date is a significant factor for higher yields, particularly in certain years.

Comparison Of Ammonium Nitrate And Urea As Nitrogen Source For Topdressing Established Grass Sods, Grant Thomas, Harold F. Miller

Agronomy Notes

When urea is broadcast and not worked into the soil there is a risk of some of the nitrogen being lost to the atmosphere as ammonia. In an effort to measure the effectiveness of urea compared to ammonium nitrate as sources of nitrogen for topdressing on established grass sod, an experiment comparing these two sources at rates to supply 0, 50, 100 and 150 pounds of nitrogen per acre was conducted in 1971.

Tall Fescue Seed Production In Kentucky, Dennis M. Tekrony, C. J. Kaiser, Warren C. Thompson, Robert C. Buckner

Agronomy Notes

Producing tall fescue seed has traditionally been a profitable venture for many Kentucky farmers. It can still provide additional income if: (1) it is properly managed and fertilized and (2) it is integrated into a total farming program which in most cases includes livestock.

Grian Sorghum Performance Tests - 1971, James H. Herbek, Morris J. Bitzer

Agronomy Notes

Grain sorghum varieties were evaluated at four locations (Carlisle, Daviess, Hopkins, and Todd Counties) in Kentucky in 1971.

Smooth-Stemmed Turnip, B J. Quinlivan, A. C. Devitt

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

Cruciferous weeds are common throughout the agricultural areas of Western Australia. They include wild turnip, wild mustard, wild radish, charlock and raphistrum weed or short fruited turnip.

Another one—tentatively named smooth-stemmed turnip—has recently been sighted. Its exact weed potential will not be known for some years, but it is likely to spread through the south coastal districts where the climate and sandy surfaced soils favour its growth.

Biscuit Wheat In W.A, G H. Jones, J. A. Parish, H. J. Moss

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

Following small scale trials in the production and evaluation of Gluclub wheat in 1970 and 1971, farmers have been asked to produce 20,000 tons of this variety for the 1972/73 season.

The background of this attempt to establish a class of soft or biscuit wheat in world markets is described in this article.

Pit And Scald Of Granny Smiths, Department Of Agriculture, Western Australia

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

Trials investigating storage and shipping disorders of fruit, mainly apples and pears, are conducted annually in cool rooms made available to the Department by the W.A. Meat Export Works.

Nitrogen On Rapeseed, Department Of Agriculture, Western Australia

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

Experiments comparing the responses of wheat and rape to nitrogenous fertilisers were planted at 26 sites from Geraldton to Esperance in 1971.

In spite of hail damage and poor emergence of rape at some sites, meaningful results were obtained in 18 cases.