Beverly hills night club fireuse NFPA 1 2009 or 2012 edition and the others should be credible sourcesfocus on is the impact of codes on the firethe difference between impact of codes in the fires time and nowadaysGRNS300/500GrainsCropProductionAssignment1Trimester2,2013Report1Aim:- The aim of this assignment is to expose you to decision support models, and todevelopan understanding of N and water in farming systems. Information on water useefficiencyis discussed in Topic 7, and nitrogen budgeting is discussed in Section 6.4.4,with additional information being included on Moodle, in the additional reading in thephysiologysection, and in the manual Managing Legume and Fertiliser N for NorthernGrain Cropping.This assignment will require you to investigate the nutrient and water requirements, andcrop physiology, of a wheat paddock over the next 8 weeks.YieldProphetYield Prophet? is an on-line crop production model designed to present grain growersand consultants with real-time information about their crops, providing integratedproduction risk advice and monitoring relevant to farm management. Yield Prophetoperates as a web interface for the Agricultural Production Systems Simulator (APSIM),and generates crop simulations and reports to assist in decision making. By matchingcrop inputs with potential yield in a given season, Yield Prophet subscribers may avoidover- or under- investing in their crop.The simulations provide a framework for growers and advisors to:?Forecast yield?Manage climate and soil water risk?Make informed decisions about nitrogen and irrigation applications?Match inputs with the yield potential of their cropAssess the effect of changed sowing dates or varieties?Assess the possible effects of climate changeAssignmentsetup:-Go tohttp://www.yieldprophet.com.auand login to Yield Prophet using the user name:UNEStudent21and password: uneSelect a region/paddock to monitor. You have a choice of BoggabillaThe actual weather and soil information for this year has been entered for these sites, andthiswill be suitable to start this assignment. However, if you want to change details tobetter reflect your local area or paddock, then you can modify the following:?the paddock location and weather station used (select information to do this)?the variety sown, sowing date, and population (select crop)?soil type?N and water values, rooting depth, and stubble cover and type for your soil?applications of N, water, etc. You will be expected to modify both N and waterduring the assignment.There will be an information file on Moodle which explains how to do each of these.Answeringquestions:For most of the questions, there is no completely right or wronganswer. What we want you to do is show us that you understand what is driving thesystem, or causing the differences/trends which you are seeing, and how theseinteractions between weather, soils, nutrients, and crop are important in managing afarmingsystem.When you are showing us that you understand, please keep your answers short a coupleoflines to a paragraph is all we are expecting for most points in a question. This savestime for you when answering, and for us when marking.Include the relevant graphs from the reports this will help your answer, and allows us toseethe information you are basing your answers on.Reportpart120/25marksGenerateacropreportforyourpaddock(SelectReports>Create>CropReport)1. What is your estimate of the yield of this crop? Base your comments on theclimate forecast, and yield probability curves, and comment on the range ofpredicted values.Discuss the range of yields predicted with current nitrogen application, and whenN is unlimited from now, and from the start of the season. Your comments shouldincludethe differences between wetter and drier years for the different N scenarios.Comment on whether yield has been lost up to this point from the lack of nitrogen.2. Give your thoughts or comments on the following from the crop reporta. The amount of rainfall which has fallen so far, in comparison to historicalrecords.b. Crop rooting depth (now and the final limit),c. water and N availability and stress,d. likelihood of frost and heat stress affecting this crop.e. You are planning to spray fungicide to protect the flag leaf just after it hasemerged when are you likely to be spraying.To get more information on heat and frost risk, you can use the sowingopportunityreport on Yield Prophet, or the CropMatewebsite(http://cropmate.agriculture.nsw.gov.au but not for WA sites) to calculatewhen the window with the lowest risk of heat or frost stress is.3. Using the Nitrogen Comparison Report (and possibly the N Profit Report), applydifferent rates of N to determine what you think is the optimum rate of N for thissite(you dont need to include these reports in your assignment). Then apply thatrate of N at different timings to see whether timing is important in your region. Iwould suggest the following three timings to start with, but feel free to play withothers if you want.a. Presowingor at sowingb. Growth stage GS16 (6 leaf stage late tillering)c. Growth stage GS37 (flag leaf emergence)Briefly discuss the results, including why there are differences between timings.You should also include comments on which of these timings (or other timing)you would use, and how other factors, such the initial N level, might influenceyourdecisions.Tips?Use the crop report to determine the dates these growth stages occur.?Assume the following when using the N profit report grade APW, 10.5% protein,protein payment $5/%, grain price $250/t, nitrogen price $1.50/kgIf your paddock has high levels of N applied at or before sowing, and isnot responsive to these applications, remove this initial application andapply it at the above growth stages to see if you can improve on yourexisting strategy. Write a comment so that we can see what you have done.4. This question is looking at the effect of starting soil water levels on yield. Pickone of the other sites, and modify it to have the same weather station and soil typeas your existing scenario. Set up the initial soil water levels to be different to yourexisting scenario.For Boggabilla, start with approximately 15-25% of a full profile.The actualpercentage isnt important, its the difference between wet and dry profiles we areinterested in. See the Modifying the setup in YP file on Moodle for how tochange water if you dont see what you should be doing.Produce a crop report, and discuss the differences in yield between this scenarioand the results from the initial soil water level (Q1). Include comments on thedifferences between the current and unlimited N yields, and between wetter anddrier years.5. Using the Irrigation comparison report and the best rate and timing of N from Q3,enter the following scenarios to add water to the crop (this could be rainfall or irrigation):a. Pre-sowing 100mm, 75% efficiencyb. GS16 100mm, 75% efficiencyc. GS65 100mm, 75% efficiencyDiscuss the effect of increased rainfall/water on yield, and particularly thedifferences in response between the different growth stages.Report part 2:5/25 marksThis follow up is to observe how the yield predictions have changed over time inresponse to rainfall, and to look briefly at how much and when the crop has been stressed.Ideally this would be done after grain fill or at harvest, but the trimester is a little tooshort for this.For your initial scenario/soil set up with your recommended N rates from Q3.6. What are the yield estimates for this crop now? Comment on what has influencedthe yield estimate, and include comments on what has stressed the crop, and whenthis has happened.7. Review your nitrogen rate decision from Questions 3 is this rate still a profitabledecision, given the rainfall which has occurred? If you had made thisrecommendation to a grower, what would you be saying if they were attackingyour decision (if it is still a good decision, well done, but outline your responsehad it been a very dry finish, or very wet finish).
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