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Articles 11221 - 11250 of 11977
Full-Text Articles in Physical Sciences and Mathematics
Longevity Of Doublegee Seed Under Continuous Pasture, D J. Gilbey
Longevity Of Doublegee Seed Under Continuous Pasture, D J. Gilbey
Experimental Summaries - Plant Research
Locality: Avondale, Wongan Hills and Chapman Research Stations. Background. Since 1974 pegged areas on the three research stations have been under continuous pasture and have been sampled annually to study the fate of the viable doublegee seed population. Each site was sprayed for doublegee control in the growing season before the first samples were taken in late summer of 73/74. The sites were again sprayed in the 1974 growing season except for Wongan Hills. The Wongan Hills site was cropped in 1976 and no further data is available. 74C7, 75WH65, 75WH66, 76AL11, 76C9, 76C6, 77C3, 77GE9, 77LC26, 77ME28, 77M028, 77N034, …
Vertical Drainage In Field Cores, Larry G. Wells, R. W. Skaggs
Vertical Drainage In Field Cores, Larry G. Wells, R. W. Skaggs
Biosystems and Agricultural Engineering Faculty Publications
No abstract provided.
1977 Summary Of Results Of Field Experiments (January 1978), D L. Chatel
1977 Summary Of Results Of Field Experiments (January 1978), D L. Chatel
Experimental Summaries - Plant Research
1. Inoculation. 1.1. High rainfall. 1.2. Low rainfall. 2. Clover Scorch. 3. Rye grass toxicity. LIST OF EXPERIMENTS 1. The responses of varieties of Trifolium yanninicum to inoculation with different strains of rhizobia - Denmark. 2. The response of T. yanninicum to inoculation over two growing seasons - Denmark. 3. The response of white and strawberry clovers to inoculation - Denmark. 4. The response of sub clover to inoculation - spaced row trial - Merredin. 5. The response of sub clover to inoculation - plot trial (Not sampled) - Merredin. 6. The response of sub clover to inoculation - spaced …
Clover And Medic Breeding And Selection 1977, C. M. Francis
Clover And Medic Breeding And Selection 1977, C. M. Francis
Experimental Summaries - Plant Research
Early Maturing Low Oestrogen Crossbreds. Disease Resistant Clovers for-Higher Rainfall Regions. Waterlogging Resistant Clovers (T. yanninicum). Overseas Collections. Early Maturing Medics from Libya. Table 1. Seed Yields of Medicago Species.
Summary Of 1977 Field Trials, M. L. Poole
Summary Of 1977 Field Trials, M. L. Poole
Experimental Summaries - Plant Research
Competition between wheat and annual ryegrass at six rates of seeding wheat, six ryegrass densities and five rates of nitrogen fertiliser (Wongan Hills Research Station) - 77WH6. Time of removal of annual ryegrass from a wheat crop (Wongan Hills Research Station)- 77WH7. Effect of different tillage systems on establishment and yield of wheat (Merredin Research Station) - 77M52. Rapeseed variety trial (Lancelin) - 77MO30. Shedding losses in rapeseed (Mount Barker Research Station) - 77MT25. Time of germination of ryegrass on wheat yield (Wongan Hills Research Station) - 77WH47. Sunflower agronomy trial (Bramley research Station) - 77B5. Other trials: 1. Co-operative …
Planting Systems Investigations, D Tennant
Planting Systems Investigations, D Tennant
Experimental Summaries - Plant Research
Planting systems investigation. l. Planting depths. 2. Soil water (0-lOcm) near planting. 3. Mineralised N near planting. Planting systems investigation. Two trials were initiated on each of five Research Stations in collaboration with G.A. Pearce and J.E. Holmes. Details in respect of treatments, operations, fertilisers, rainfall, yields and weed populations are provided by these officers in their respective reports. For the purposes of this report, attention is drawn to two findings of a preliminary study of similar planting systems in 1976. TABLE 1. DepthS of planting (cm). Means of 40 to 80 estimates - 77A16, 77E18, 77M13, 77MT15, 77WH17. TABLE …
Moisture Responses Of Wheat (Merredin), R Weir
Moisture Responses Of Wheat (Merredin), R Weir
Experimental Summaries - Plant Research
A trial was planted at Merredin in 1976 on Salmon Gum soil with the aim of testing the drought tolerance of Gamenya, Madden and Insignia wheat.
Farm Dams In The Wheatbelt, I A F Laing
Farm Dams In The Wheatbelt, I A F Laing
Journal of the Department of Agriculture, Western Australia, Series 4
Of the estimated 76 000 farm dams in the wheatbelt, about 8 per cent either leak or are salt affected. The remaining 70 000 dams are capable of holding water for livestock use and can be regarded as sercicable dams.
A great many of the serviceable dams are unreliable water supplies due to the combined effects of lack of runoff from catchments, shallow depth of storage and small size of storage in relation to expected demand from livestock and evaporation loss.
Saltland And What To Do About It, C V. Malcolm
Saltland And What To Do About It, C V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
Saltland can be conveniently divided into three main types on the basis of cause. Within each type their is great variation, and the types may merge or overlap.
The three aims of a saltland treatment programme are; reduce the groundwater levels or seepage flows as much as possible,reduce the capillary action which brings salt to the surface, and to revegetate the soils with the most useful plants that can survive.
Phosphorus Sources Trials, M Da Bolland, M J. Baker
Phosphorus Sources Trials, M Da Bolland, M J. Baker
Experimental Summaries - Plant Research
HIGH RAINFALL AREAS -Sand 76BU1 - New land phosphorus sources trial (pasture) T. O'Byrne, Yalingup. 76BU4 - Old land phosphorus sources trial (pasture) T. Combe, Busselton. Gravel 76MT10 - New land phosphorus sources trial (pasture) Mt. Barker Research Station. 76MT9 - Old land phosphorus sources trial (pasture) Mt. Barker Research Station. 77MT1 - Newland particle size and method of cultivation phosphorus source trial (pasture) Mt. Barker Research Station. 77MT2 - Old land phosphorus sources cropping trial (oats every 3rd year) Mt. Barker Research Station. MEDIUM RAINFALL AREAS Sand 76ES37 - Young land phosphorus sources trial (pasture) F. Fels, Esperance. 77E1 …
Herbicide Screening. Soursob Control In Cereal Crop., J. Peirce
Herbicide Screening. Soursob Control In Cereal Crop., J. Peirce
Experimental Summaries - Plant Research
Herbicide screening - soursob control in cereal crop (Beverley). Soursob control in cereals (Yelbeni, Doodlakine). Chemical control of Oxalis purpurea L. (Beverley). Chemical control of Doveweed (Eremocarpus setigerus Benth.) - Beverley.
Long Term Rotation Trials 1977, I Rowland
Long Term Rotation Trials 1977, I Rowland
Experimental Summaries - Plant Research
W56H, 66M29, 67C13, 67N4, 68E5, 68SG5,73SG16.
Lupins, Barley, Clover.
Grain Legume Agronomy 1976-1977, G H. Walton
Grain Legume Agronomy 1976-1977, G H. Walton
Experimental Summaries - Plant Research
76B1, Lupin agronomy, high rainfall area.
CB49, Lupin crop establishment methods.
76JE7, Lupin agronomy and soil fertility improvement.
74MO11, Seedling regeneration.
75MO7, Pasture establishment under unicrop and soil fertility improvement.
76MO13, L. cosentinii cv CB49 agronomy.
76MO14, Amino acid sequence study in the maturation of lupin seed.
76MT4, Chick pea response to plant density.
76MT5, Effect of waterlogging on lupin species.
76NA9, Polyculture of wheat and lupin.
76NA10, Pasture establishment under cover crops.
76TS12, L cosentinii cv agronomy.
Potassium Trials, W. J. Cox
Potassium Trials, W. J. Cox
Experimental Summaries - Plant Research
1. Potassium Trials. 77MO1, 76MO1, 77MO2, 77MO27, 76MO3. Lost due to drought effects: 77GE4, 77GE5, 77GE6, 77TS1, 77TS2, 77TS4, 77TS11.
Trace Element Nutrition, J. W. Gartrell
Trace Element Nutrition, J. W. Gartrell
Experimental Summaries - Plant Research
Factors influencing the effectiveness of mixed copper-superphosphate fertilizers. 1. 77LG30 TABLE 1. Variable treatments and treatment numbers. TABLE 2 - Gamenya wheat grain yields from experiment 77LG30 (1977) in which the influence of several variables on the effectiveness of copper fertilisers were tested. TABLE 3 - Cu concentration in youngest-fully emerged leaf (7th-leaf) sampled 31.8.77 from experiment 77LG30 and index of Cu uptake (Cu in YFEL x actual grain yield). TABLE 4: Wheat grain yields and copper content in youngest fully emerged flag leaf sampled 5.10.77. 2. Copper x Nitrogen, Zn and Mo on wheat. 3. Wheat Grain Copper Analysis. …
Take-All Of Cereals And Cereal Seed Dressings, G D. Macnish
Take-All Of Cereals And Cereal Seed Dressings, G D. Macnish
Experimental Summaries - Plant Research
Take-all of cereals. Take-all surveys. Effect of nitrogen sources on take-all: 76LG25 Wheat, 77MT19 Wheat, 77JE31 Barley, 77MT17 Barley, 77LG20 Oats, 77JE5 Wheat, 77LG6 Wheat, 77E4 Wheat, 77ES6 Wheat, 77GE10 Wheat. Effect of rates of (NH4)2 SO4 and Na NO3 on take-all - 77E6 Wheat, 77ES Wheat. Effect of rates of (NH4)2 SO4 on take-all - 77LG7 Wheat, 77JE6 Wheat. Soil pH and take-all - 77LG25 Cleaning crops and take-all control - 76E6, 76N5, 76M47, 76A7, 76LG27. Spray-fallow and time of planting - 76GE35 9 76LG26, 76LG26, 76LG38. Effect of rates of sowing on take-all - 77JE7. Long term rotations …
Nitrogenous Fertilisers For Cereals - Results From 1977 Trials On Wheat, Oats And Barley, M. G. Mason
Nitrogenous Fertilisers For Cereals - Results From 1977 Trials On Wheat, Oats And Barley, M. G. Mason
Experimental Summaries - Plant Research
Rates of Nitrogen on Wheat, Oats and Barley - Soil Test. In this, the third year of this programme, 44 sites were selected and soil sampled during February - March. Thirty seven of these trials consisted of four replications on wheat only and the other seven consisted of three replications on wheat, oats and barley. All reps were soil sampled separately. In each rep. of the 37 trials, 20 samples were taken to 10 cm depth with pogo stick samplers. In the. other seven trials 50 samples per rep. were taken. In addition, from three holes at random across each …
Minimum Tillage Trials 1977, G. A. Pearce
Minimum Tillage Trials 1977, G. A. Pearce
Experimental Summaries - Plant Research
Minimum tillage trials 1977. Locations: Wongan Hills R.S., Avondale, Merredin, Mt. Barker, Esperance. Sites: At each station two sites were used, the first was under crop in 1976 and the trial will be repeated each year on the same area. The second site was under pasture in 1976 and was due to be cropped in 1977 as part of the normal district practice. The trials will be planted on a similar pasture site in 1978. Results. Apart from crop yields, weed counts (before spraying) and crop plant numbers were taken. Other measurements were made by various research officers and reported …
Miscellaneous Crop Trials - High Rainfall Districts, M. W. Perry
Miscellaneous Crop Trials - High Rainfall Districts, M. W. Perry
Experimental Summaries - Plant Research
1. High Rainfall Miscellaneous Crop Trials - 77BU3, 77BU11, 77DE2. 77HA1, 77HA6, 77MA2, 2. Standard Alternative Crop Trials - 77BA16, 77MT20, 77NA27, 77NA28. 3. L. cosentinii Establishment and Regeneration - 77MO20, 77GE31, 77TS22. Plant density x time of planting on L. Consentinii - 77BA15. 4. L. consentinii seeding rates - 77BR11. 5. Seeding Rates for High Rainfall Cereals - 77BR11.
Pasture Species Investigations - High Rainfall Area 1976, D A. Nicholas
Pasture Species Investigations - High Rainfall Area 1976, D A. Nicholas
Experimental Summaries - Plant Research
Contents Clover cultivar grazing trial (N. Bannister) - NOT in this document. Perennial versus annual grass grazing trial (Manjimup Research Station) - 72MNS. Pasture types x stocking rate trial (Denmark Agricultural High School) - 72D1. Clover cultivar evaluation trial (Denmark Research Station) - 8. The final yield sampling in December was not obtained through cattle having broken into the area. Clover cultivar evaluation trial (Karridale) - 77BU10. Clover cultivar evaluation trial (Denmark Research Station) - 77D5, 77DF, Clover cultivar evaluation trial (Wellstead) - 77AL22. Clover cultivar Evaluation Trials. Location: Esperance District - 77ES27 - R.L. Stead, Dalgup; 77ES28 - E.L.D., …
Effect Of Soil Properties On Copper Availability To Plants, R. F. Brennan
Effect Of Soil Properties On Copper Availability To Plants, R. F. Brennan
Experimental Summaries - Plant Research
Experimental glasshouse work involved examining the decrease in effectiveness of copper fertilizer in the soil through time. This seems to conflict with Mr. J.W. Gartrell's programme of field trials which have shown no evidence for any decline in the effectiveness of the original application. 1. Ammonium cxalate extractable Cu. TABLE 3 - 77GL3. The response to copper of Gamenya Wheat grown in a range of W.A. soils (Average dry weight (3 reps) - g/10 plants). 77GL4. Dongara, Gingin, Dowerin, Newdegate, S. W. Newdegate, Merredin. TABLE 4 - 77GL4. Effect of PH and incubation on the effectiveness of CuS045H20 to Gamenya. …
Lupin Trials, J Moore
Lupin Trials, J Moore
Experimental Summaries - Plant Research
Trials in lupins this year concentrated on testing herbicide for post emergence use in lupins. Of the 20 herbicides tested 12 did not cause significant decreases in crop density and/or yield. However, weed control was often poor and the herbicide phytotoxicity tended to vary between sites. (Chapman, Badgingarra and Avondale). The Chapman and Avondale trials were not harvested because of drought. Trials in 1978 should determine if any of the herbicides tested can safely be recommended. Lupins - summary. Post emergence lupin herbicides (Badgingarra Research Station) - 77BA36. Post emergence herbicides for lupins (Chapman Research Station) - 77C18. Post emergence …
Landsat Linear Trend Analysis - A Tool For Groundwater Exploration In Northern Arkansas, H. C. Macdonald, Kenneth F. Steele, Elizabeth Gaines
Landsat Linear Trend Analysis - A Tool For Groundwater Exploration In Northern Arkansas, H. C. Macdonald, Kenneth F. Steele, Elizabeth Gaines
Technical Reports
Intelligent development of groundwater resources is a process that requires a thorough understanding of the availability and movement of groundwater. In northern Arkansas knowledge of the deep aquifers is fairly limited, perhaps because economic factors and uncertain yields have discouraged exploitation. The development of these deeper aquifers to their fullest potential as reliable water sources depends on the delineation of high yield areas, a process that may be facilitated by linear trend analysis as outlined in this study. Satellite and photolineament maps of the 13 counties were prepared by use of LANDSAT images and Agricultural Stabilization and Conservation Service photo …
Lupin Cultivar Comparison, G H. Walton
Lupin Cultivar Comparison, G H. Walton
Experimental Summaries - Plant Research
1. Lupin cultivar comparison - L. cosentinii cv. CB49 and L. angustifo1ius cv Marri - 77A20. - L. albus cv Ultra and L. angustifolius cultivars, BRAMLEY R.S. - 77B1(A), 77B1(B). 2. Field pea cultivar comparison - AVONDALE R.S. - 77A22. 3. Lupin and cereal mixtures - 77MO19, 4. Undersowing of subclover pasture - 77NA25. Plant competition in mixtures of lupin and cereal (Lancelin) - 77MO19. Undersowing lupin and wheat crops with sub. clover (Cuballing) - 77NA25. Polycultures of wheat and lupin (Crossman) - 77NA26, 77MO18. Expt no: 76JE7, 77A20, 77A21, 77A22, 77B1(A), 77B1(B), 77GE30, 77MO17, 77MO18, 77MO19, 77NA25, 77NA26, 77TS21.
Pawnee County, Table Rock Area, R. K. Pabian
Pawnee County, Table Rock Area, R. K. Pabian
Conservation and Survey Division
No abstract provided.
Nebraska Mineral Operations Review, 1976, Raymond R. Burchett, Duane A. Eversoll
Nebraska Mineral Operations Review, 1976, Raymond R. Burchett, Duane A. Eversoll
Conservation and Survey Division
During 1976, there were active in Nebraska 41 limestone quarries; 592 sand, gravel and silt or siltstone pits; 8 clay or shale pits; 24 sandstone pits; and 1 peat pit. These 666 mining operations disturbed 820 acres and restored 78 acres during the year.
Thayer County, Alexandria And Gilead Areas, R. K. Pabian
Thayer County, Alexandria And Gilead Areas, R. K. Pabian
Conservation and Survey Division
No abstract provided.
Sarpy County, Gretna State Fish Hatchery Area (Schramm Park), R. K. Pabian
Sarpy County, Gretna State Fish Hatchery Area (Schramm Park), R. K. Pabian
Conservation and Survey Division
No abstract provided.
Jefferson County , Fairbury Area, R. K. Pabian
Jefferson County , Fairbury Area, R. K. Pabian
Conservation and Survey Division
No abstract provided.
Sarpy County, Gretna State Fish Hatchery Area, R. K. Pabian
Sarpy County, Gretna State Fish Hatchery Area, R. K. Pabian
Conservation and Survey Division
No abstract provided.