Skip to content
Snippets Groups Projects
Commit 10260878 authored by Brita Linnestad's avatar Brita Linnestad
Browse files

[ci skip] Merge branch 'main' into release

parents 9afc9091 23bfce04
Branches
Tags
No related merge requests found
# NegativePrognosisModel
This repository contains the implementation of the Negative prognosis model.
<p>From a specific date (50% germination), daily risk values are accumulated based on weather data (temperature, relative humidity and precipitation). The risk is an accumulated value of how the weather affects late blight germination/infection, sporulation and growth. Alle processes are corrected for inhibition due to drying. After the accumulated risk has reached a certain limit (150), there will be an infection risk if there is one day with high infection risk. This model is together with time of row closure, used to decide the timing of first spray against potato late blight.</p>
<h4>First spray</h4>
<p>There is normally no need for spraying against potato late blight before row closure. Long lasting, favourable weather conditions in areas with early production, in combination with high levels of primary inoculum, can make it necessary to spray earlier. If the accumulated risk based on the negative prognosis model reaches 150 before row closure, first spray should be applied at the next infection period. In years with long periods with wet soil early in the season can also lead to early risk of infection.</p>
<p>When accumulated risk &lt; 150, warning symbol is green</p>
<p>When accumulated risk &gt; 150, warning symbol is yellow if the daily risk is below 7 and red if it is above 7</p>
<p>When a late blight warning has been issued, cultivar suseptibility, selection of fungicide and time of application should be considered before spraying. Risk of getting an infection is highest if warnings are issued two days ore more in a row, and when late blight has been observed in the area. &lsquo;</p>
<p>Fungicides are most effective when used as protectants against late blight. Infection normally occurs during the morning, which means that the spray should be applied the day before if not covered by the last spray. One application normally protects the crop for 7 to 14 days, depending on the fungicide, dose and growing conditions.&nbsp;</p>
<h4>Testing and validation</h4>
<p>This model has been tested in several countries, and is the basis for late blight warnings in the USA (NegFry)</p>
<h4>References</h4>
<p>Ullrich J. &amp; H. Schr&ouml;dter 1966. Das Problem der Vorhersage des Auftretens der Kartoffel krautf&auml;ule (Phytophthora infestans) und die M&ouml;glichkeit seiner L&ouml;sung durch eine &ldquo;Negativprognose&rdquo;. Nachrichtenblatt Deutsch. Pflanzenschutzdienst (Braunschweig) 18, 33-40</p>
### Development
......
......@@ -11,14 +11,14 @@
<groupId>no.nibio.vips.model</groupId>
<artifactId>NegativePrognosisModel</artifactId>
<version>1.1.2</version>
<version>1.1.3-SNAPSHOT</version>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>no.nibio.vips</groupId>
<artifactId>VIPSCommon</artifactId>
<version>2.0.1</version>
<version>2.0.2</version>
</dependency>
<dependency>
<groupId>junit</groupId>
......
......@@ -156,22 +156,24 @@ public class NegativePrognosisModel extends I18nImpl implements Model{
@Override
public String getLicense() {
return "\n" +
"Copyright (c) 2016 NIBIO <http://www.nibio.no/>. \n" +
"\n" +
"This file is part of NegativePrognosisModel.\n" +
"NegativePrognosisModel is free software: you can redistribute it and/or modify\n" +
"it under the terms of the NIBIO Open Source License as published by \n" +
"NIBIO, either version 1 of the License, or (at your option) any\n" +
"later version.\n" +
"\n" +
"NegativePrognosisModel is distributed in the hope that it will be useful,\n" +
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n" +
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" +
"NIBIO Open Source License for more details.\n" +
"\n" +
"You should have received a copy of the NIBIO Open Source License\n" +
"along with NegativePrognosisModel. If not, see <http://www.nibio.no/licenses/>.";
return "/*\n" +
" * Copyright (c) 2016 NIBIO <http://www.nibio.no/>. \n" +
" * \n" +
" * This file is part of NegativePrognosisModel.\n" +
" * This program is free software: you can redistribute it and/or modify\n" +
" * it under the terms of the GNU Affero General Public License as published by\n" +
" * the Free Software Foundation, either version 3 of the License, or\n" +
" * (at your option) any later version.\n" +
" *\n" +
" * This program is distributed in the hope that it will be useful,\n" +
" * but WITHOUT ANY WARRANTY; without even the implied warranty of\n" +
" * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" +
" * GNU Affero General Public License for more details.\n" +
" *\n" +
" * You should have received a copy of the GNU Affero General Public License\n" +
" * along with this program. If not, see <https://www.gnu.org/licenses/>.\n" +
" * \n" +
" */";
}
@Override
......
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Please register or to comment