Near-Infrared Spectroscopy Technology for Soil Nutrients Detection Based on LS-SVM

Abstract : The detection method of the soil nutrients (organic matter and available N, P, K) were analyzed based on the near infrared spectroscopy technology in order to decision-making for precision fertilization. 54 samples with 7m×7m was collected using DGPS receiver positioning in a soybean field. The soil organic matter, available nitrogen (N), available phosphorus (P), available potassium (K) content was determined, the near-infrared diffuse reflectance spectrum of the soil samples were obtained by FieldSpec3 spectrometer. 54 samples were randomly divided into 40 prediction sets and 14 validation sets. After smoothing, the eight principal components of original spectra were extracted by principal component analysis (PCA). Prediction model of soil organic matter, available nitrogen (N), available phosphorus (P), potassium (K) were respectively established with the eight principal component as input and soil nutrients by measured as the output, and the 14 validation samples were predicted. The results showed that the soil organic matter, available nitrogen (N), available phosphorus (P), potassium (K) prediction model were set up with principal component analysis and LS-SVM, which the correlation coefficients between the prediction value and measurement value were 0.8708, 0.7206, 0.8421 and 0.6858, the relative errors of the LS-SVM prediction was smaller and those mean values were 1.09%, 1.06%, 4.08% and 0.69%. The method of soil organic matter content prediction is feasible.
Type de document :
Communication dans un congrès
Daoliang Li; Yingyi Chen. 5th Computer and Computing Technologies in Agriculture (CCTA), Oct 2011, Beijing, China. Springer, IFIP Advances in Information and Communication Technology, AICT-368 (Part I), pp.325-335, 2012, Computer and Computing Technologies in Agriculture V. 〈10.1007/978-3-642-27281-3_39〉
Liste complète des métadonnées

Littérature citée [19 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01351828
Contributeur : Hal Ifip <>
Soumis le : jeudi 4 août 2016 - 17:13:08
Dernière modification le : jeudi 4 août 2016 - 17:44:16
Document(s) archivé(s) le : samedi 5 novembre 2016 - 11:40:20

Fichier

978-3-642-27281-3_39_Chapter.p...
Fichiers produits par l'(les) auteur(s)

Licence


Distributed under a Creative Commons Paternité 4.0 International License

Identifiants

Citation

Yandan Qiao, Shujuan Zhang. Near-Infrared Spectroscopy Technology for Soil Nutrients Detection Based on LS-SVM. Daoliang Li; Yingyi Chen. 5th Computer and Computing Technologies in Agriculture (CCTA), Oct 2011, Beijing, China. Springer, IFIP Advances in Information and Communication Technology, AICT-368 (Part I), pp.325-335, 2012, Computer and Computing Technologies in Agriculture V. 〈10.1007/978-3-642-27281-3_39〉. 〈hal-01351828〉

Partager

Métriques

Consultations de la notice

83

Téléchargements de fichiers

249