Book
Monitoring, warning, and decision support in winter wheat
| العنوان: | Monitoring, warning, and decision support in winter wheat |
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| المؤلفون: | Axelsen, Jørgen Aagaard, Jørgensen, Lise Nistrup, Damgaard, Christian Frølund, Justesen, Annemarie Fejer, Bruus, Marianne |
| المصدر: | Axelsen , J A , Jørgensen , L N , Damgaard , C F , Justesen , A F & Bruus , M 2020 , Monitoring, warning, and decision support in winter wheat . Bekæmpelsesmiddelforskning fra Miljøstyrelsen , no. 186 , Miljøstyrelsen , S.l. < https://mst.dk/service/nyheder/nyhedsarkiv/2020/maj/beslutningsstoette-til-vinterhvede/ > |
| بيانات النشر: | Miljøstyrelsen |
| سنة النشر: | 2020 |
| المجموعة: | Aarhus University: Research |
| مصطلحات موضوعية: | Beslutningsstøttesystem, Septoria, Bladlus |
| الوصف: | Background Winter wheat occupies a large part of the conventionally cultivated area in Denmark, and farmers commonly treat against fungal diseases 2 - 3 times per season. At least 1-2 of these treatments are specifically aimed at controlling Septoria. When treating with fungicides in June, farmers often add an insecticide to the application in order to be sure to avoid problems with aphids, even though the number of aphids has not exceeded the given threshold. Therefore, treatments with fungicides in winter wheat may be the reason for unnecessary treatments with insecticides, and it makes sense to develop a decision support system targeting Septoria and aphids at the same time. In an earlier project, a detailed, mechanistic ecosystem model (SeptoriaSim) was developed to simulate the growth of both winter wheat and Septoria and the damage caused by Septoria to winter wheat, depending on temperature, solar radiation, humidity, and rainfall. The output from this model was both the yield of winter wheat with and without fungicide treatment and the reve-nue of the treatments, taking sales price of wheat and treatment costs into account. The revenue of a treatment is an essential parameter when deciding on pesticide treatments, and the model was found to perform well in trials in 2015. Objective The overall objective of this project was to develop a combined decision support system for Sep-toria and aphids in winter wheat by improving SeptoriaSim and extending it with an aphid module. The work to fulfill this objective was split into four immediate objectives: 1. Develop new monitoring methods for the two pests 2. Provide a stronger scientific foundation for warning models against Septoria and aphids 3. Describe the spatial variation of aphids 4. Evaluate the reliability of the warning method/decision support tools in field trials. Investigations Four types of investigations were carried out with the aim of both providing data for calibration of the model and enforcing the scientific background: 1. Investigations of ... |
| نوع الوثيقة: | book |
| اللغة: | English |
| ردمك: | 978-87-7038-184-0 87-7038-184-4 |
| Relation: | https://pure.au.dk/portal/en/publications/c6e11381-dda2-45b9-bdc3-ba12ec13752a; urn:ISBN: 978-87-7038-184-0 |
| الاتاحة: | https://pure.au.dk/portal/en/publications/c6e11381-dda2-45b9-bdc3-ba12ec13752a https://mst.dk/service/nyheder/nyhedsarkiv/2020/maj/beslutningsstoette-til-vinterhvede/ |
| Rights: | info:eu-repo/semantics/restrictedAccess |
| رقم الانضمام: | edsbas.276DB624 |
| قاعدة البيانات: | BASE |
| ردمك: | 9788770381840 8770381844 |
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