Lin, Zhidan Accurate and rapid detection of soil and fertilizer properties based on visible/near-infrared spectroscopy. [electronic resource] - Applied optics Jun 2018 - D69-D73 p. digital Publication Type: Journal Article ISSN: 1539-4522 Standard No.: 10.1364/AO.57.000D69 doi Subjects--Topical Terms: Fertilizers--analysisModels, TheoreticalSoil--chemistrySpectroscopy, Near-Infrared--methods