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2025 оны 05 сарын 1 єдєр

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2025 оны 05 сарын 1 єдєр
The Australian Pesticides And Veterinary Medicines Authority Oversees Herbicide Registration, Requiring Extensive Trials To Ensure Crop Safety And Efficacy. However, Due To The High Cost Of Testing Across Australia’S Diverse Conditions, Not All Soil Types And Climates Are Comprehensively Covered. Registrants Typically Focus On Environments Representing The Majority Of The Market, Leaving Smaller, Atypical Environments Untested. Growers In These Regions Must Often Learn Through Experience, Particularly With Pre-Emergent Herbicides, Which Are More Prone To Challenges In Lighter Sandy Soils And Soils Altered By Amelioration Practices Such As Claying And Delving/Mixing. Stakeholder Meetings Have Highlighted Several Issues With New Pre-Emergent Herbicides, Including Yield Losses, Crop Damage, And Inconsistent Weed Control. In Some Cases, Herbicide Efficacy Varies Significantly Across Different Soil Types, While Residues Have Been Found To Affect Crop Safety. Inadequate Label Information Has Also Contributed To These Challenges, With Growers Expressing Concerns About Poor Communication From Chemical Companies Regarding Product Performance And Risks. In The Western And Southern Regions, Significant Crop Damage Has Been Observed In Sandy Soils, Along With Complications Related To Plant-Back Intervals. In The Northern And Southern Regions, Growers Have Reported Herbicide Efficacy And Safety Issues In Alkaline Soils. The Consultancy Report And Stakeholders Involved In Ula2402-003Cax Identified The Evaluation Of Climatic, Soil, And Management Factors Affecting The Efficacy And Crop Safety Of Major Pre-Emergent And Post-Emergent Herbicides As A Top Research Priority.

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2025 оны 05 сарын 1 єдєр
Local Growers Report A Yield Ceiling In Oats, Unlike Barley, Suggesting A Challenge In Achieving Higher Grain Yield. This May Stem From Higher Biomass And A Source-Sink Imbalance, Making Oats More Vulnerable To Environmental Stress. Last Season’S Trials Support This, Showing Excessive Nitrogen Reduced Harvest Index And Grain Weight, Ultimately Lowering Yields—Likely Due To Increased Biomass And Greater Susceptibility To Terminal Drought (Data Available On Request). Further Reinforcing This, Trials Showed Significantly Higher Yields When Oats Were Planted In Late March Instead Of Late April, Suggesting Early Seeding Helps Mitigate Drought Effects. Overseas Research Also Links Vegetative Indices (Multispectral Analysis) At Panicle Emergence And Early Grain Fill To Final Yield, Suggesting These Indices Could Serve As A Tool For Identifying Unrealized Yield Potential. By Comparing Up To 3 Milling Oats Varieties That With Difference In Phenology And Crop Architecture This Research Will Seek To Address The Following Issues: * Maximise Oat Yield, Quality And Profit Through Efficient Use Of Nitrogen. * Provide Insights Into The Relationship Between Time Of Sowing, Biomass Growth, Nitrogen Application, And Grain Yield In Oats. * Identify Whether Variety Specific Characteristics Offer Opportunities To Overcome The Yield Ceiling. * Identify The Risk (Lack Of Photoperiod Hold) Or Benefits (Grain Yield) With Early Seeding Of Varieties. * Use Multispectral Technology To Improve Decision-Making Tools For Growers. * Contribute To Sustainable Oat Production By Addressing Yield Limitations Associated With Excessive Vegetative Growth, Terminal Drought, And Over-Fertilization. Trials Are To Be Applied To Farmer-Sown Strips Of Up To 3 Milling Oats Varieties That With Difference In Phenology And Crop Architecture (4 Randomized Replicates Within Each Block). A Range Of Environments To Capture N Response & Rainfall/Terminal Drought Influence: 1. Low Rainfall (Lake Grace): 4N Rates, 2 Tos, 3 Varieties (96 Plots) 2. Medium Rainfall (Narrogin): 4N Rates, 2 Tos, 3 Varieties (96 Plots) 3. High Rainfall (Williams): 5N Rates, 1 Tos, 3 Varieties (60 Plots)

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2025 оны 05 сарын 1 єдєр

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2025 оны 05 сарын 1 єдєр

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2025 оны 05 сарын 1 єдєр

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2025 оны 05 сарын 1 єдєр

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Тєрєл: Гэрээний шагнал

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2025 оны 05 сарын 1 єдєр

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Тєрєл: Гэрээний шагнал

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2025 оны 05 сарын 1 єдєр
Stubble Management Is A Significant Issue In Western Australia Particularly In The High Rainfall Zone, Where It Is Not Uncommon For Cereal Yields To Reach Over 7 T/Ha With The Resulting Stubble Loads Being Up To 10 T/Ha. This Is A High Amount Of Stubble Residue Left Post Harvest And Is An Increasing Concern For Local Growers Due To Poor Establishment Of Following Crops, Nitrogen (N) Tie-Up, Disease Carryover Issues And Seeding Operation Inefficiencies Such As, Blockages, Hair Pinning, Poor Soil Throw And Bulldozing. As A Result, Plant Establishment Has Become Increasingly Difficult, Particularly Canola Establishment. Traditionally, High Stubble Loads In The Region Have Been Removed By Burning, However, There Has Been A Move Away From Burning Due To A Combination Of Social License Issues, As Well As Farming System Concerns. Burning Increases The Risk Of Erosion And Nutrient Loss And Decreases Soil Moisture. Growers Are Also Concerned With Nitrogen (N) Tie-Up From Retained Crop Stubble. Although Cereal Stubbles Contribute Very Little N To The Following Crop, Stubbles Are A Source Of Carbon And N Is Required From The Soil To Breakdown This High Carbon Material. Previous Grdc Research Has Been Conducted To Understand The Additional N Requirements Needed To Overcome Early N Immobilisation By Stubble, This Research Suggests That An Additional 5-6 Kg N/T Of Cereal Residue Can Help Overcome The Issues Of Stubble N Immobilisation. (Https://Grdc.Com.Au/Resources-And-Publications/Grdc-Update-Papers/Tab-Content/Grdc-Update-Papers/20 18/02/The-Effect-Of-Stubble-On-Nitrogen-Tie-Up-And-Supply). Investigation Into Whether The Addition Of Nutrients, In Addition To An Enzyme ‘Digester’ To Stubble In Conjunction With Mechanical Stubble Treatments, During The Summer Fallow Period, Can Increase The Rate Of Stubble Breakdown To Allow For Improved Winter Crop Establishment (Especially Canola) And Reduction In Early Season Nitrogen Tie-Up. Reduced Carryover Of Stubble-Borne Diseases Could Also Be Explored Via Observations

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2025 оны 05 сарын 1 єдєр

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2025 оны 05 сарын 1 єдєр

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2025 оны 04 сарын 30 єдєр

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2025 оны 04 сарын 30 єдєр

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2025 оны 04 сарын 30 єдєр

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2025 оны 04 сарын 30 єдєр

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2025 оны 04 сарын 30 єдєр

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2025 оны 04 сарын 29 єдєр

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2025 оны 04 сарын 29 єдєр

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2025 оны 04 сарын 29 єдєр

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2025 оны 04 сарын 28 єдєр

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2025 оны 04 сарын 28 єдєр

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2025 оны 04 сарын 26 єдєр

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2025 оны 04 сарын 25 єдєр

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2025 оны 04 сарын 25 єдєр

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2025 оны 04 сарын 25 єдєр