OPTIMAL ECONOMIC LENGTH OF LEYS: A DYNAMIC PROGRAMMING APPROACH
A model is presented to investigate the optimal economic life cycle of grass leys with winter damage problems in northern Norway and to determine the threshold of winter damage before it is profitable to reseed. A two-level hierarchic Markov process has been constructed using the MLHMP software. The...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.128.4397 2023-05-15T17:43:26+02:00 OPTIMAL ECONOMIC LENGTH OF LEYS: A DYNAMIC PROGRAMMING APPROACH Agnar Hegrenes Anders Ringgaard Kristensen The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.128.4397 http://www.ecsocman.edu.ru/images/pubs/2003/12/31/0000141888/015.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.128.4397 http://www.ecsocman.edu.ru/images/pubs/2003/12/31/0000141888/015.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.ecsocman.edu.ru/images/pubs/2003/12/31/0000141888/015.pdf Dynamic programming Bayesian updating Leys replacement Norway text ftciteseerx 2016-01-07T14:24:10Z A model is presented to investigate the optimal economic life cycle of grass leys with winter damage problems in northern Norway and to determine the threshold of winter damage before it is profitable to reseed. A two-level hierarchic Markov process has been constructed using the MLHMP software. The model takes uncertainty concerning yield potential, damage estimation and weather dependent random fluctuations into account. A Kalman filter technique is used for updating of knowledge on yield potential and damage level. The application of the model is demonstrated using data from two commercial Norwegian farms. Since parameter estimates vary considerably among farms, it is concluded that decision support concerning optimal economic life cycle of grass leys should be done at farm level. The results also show the importance of using a flexible dynamic replacement strategy. Use of the model for a specific farm situation is illustrated. Text Northern Norway Unknown Norway |
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English |
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Dynamic programming Bayesian updating Leys replacement Norway |
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Dynamic programming Bayesian updating Leys replacement Norway Agnar Hegrenes Anders Ringgaard Kristensen OPTIMAL ECONOMIC LENGTH OF LEYS: A DYNAMIC PROGRAMMING APPROACH |
topic_facet |
Dynamic programming Bayesian updating Leys replacement Norway |
description |
A model is presented to investigate the optimal economic life cycle of grass leys with winter damage problems in northern Norway and to determine the threshold of winter damage before it is profitable to reseed. A two-level hierarchic Markov process has been constructed using the MLHMP software. The model takes uncertainty concerning yield potential, damage estimation and weather dependent random fluctuations into account. A Kalman filter technique is used for updating of knowledge on yield potential and damage level. The application of the model is demonstrated using data from two commercial Norwegian farms. Since parameter estimates vary considerably among farms, it is concluded that decision support concerning optimal economic life cycle of grass leys should be done at farm level. The results also show the importance of using a flexible dynamic replacement strategy. Use of the model for a specific farm situation is illustrated. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Agnar Hegrenes Anders Ringgaard Kristensen |
author_facet |
Agnar Hegrenes Anders Ringgaard Kristensen |
author_sort |
Agnar Hegrenes |
title |
OPTIMAL ECONOMIC LENGTH OF LEYS: A DYNAMIC PROGRAMMING APPROACH |
title_short |
OPTIMAL ECONOMIC LENGTH OF LEYS: A DYNAMIC PROGRAMMING APPROACH |
title_full |
OPTIMAL ECONOMIC LENGTH OF LEYS: A DYNAMIC PROGRAMMING APPROACH |
title_fullStr |
OPTIMAL ECONOMIC LENGTH OF LEYS: A DYNAMIC PROGRAMMING APPROACH |
title_full_unstemmed |
OPTIMAL ECONOMIC LENGTH OF LEYS: A DYNAMIC PROGRAMMING APPROACH |
title_sort |
optimal economic length of leys: a dynamic programming approach |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.128.4397 http://www.ecsocman.edu.ru/images/pubs/2003/12/31/0000141888/015.pdf |
geographic |
Norway |
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Norway |
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Northern Norway |
genre_facet |
Northern Norway |
op_source |
http://www.ecsocman.edu.ru/images/pubs/2003/12/31/0000141888/015.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.128.4397 http://www.ecsocman.edu.ru/images/pubs/2003/12/31/0000141888/015.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766145504073220096 |