Abstract
Assessment of soil fertility status can be done through a soil test approach, but the main problem is the difficulty of predicting the nutrient content in the soil. This requires laboratory testing and takes several times, while the nutrient requirements must be known immediately so that plants can grow ideally. In the last few decades, researchers have been trying to find alternative methods that are fast, innovative, effective, environmentally friendly, and non-destructive to predict nutrient concentrations. One of the technologies that are currently developing rapidly and has the potential to be used to detect/predict the nutrient content is near-infrared reflectance (NIR). Many studies have been conducted and reported related to the application of close-range infrastructure technology, especially for speed and soil quality. This paper discusses several reviews of research in Aceh Province related to the application of NIRS Technology to detect soil fertility. The NIR technique is an analytical technique that is fast and does not damage the sample of the material to be tested. Information on chemicals based on biological reactions after exposure to NIR radiation. Near-infrared light is available in the wavelength range up to 780 nm to 2500 nm or above visible light. When a ray coming from a light source A falls on a biological object, there will be an interaction between the object and the light. The objects location will respond in the form of reflection, absorbance and transmission. The reflection response can be in the form of direct reflection (specular reflectance) which means that light is reflected back by objects, pseudo reflection (diffuse reflectance) where light is first and then reflected. This research about NIR technology, it can solve problems, especially regarding the improvement and evaluation of soil fertility by predicting the right model to measure the nutrient content of the soil.
Highlights
Spesifikasi: rendah – tinggi dan probe backgroundHasil dan Pembahasan Menurut Fajrina (2018) dan Mislia (2020), beberapa permasalahan yang sering timbul akibat kondisi tersebut adalah ph tanah rendah, rendah unsur hara, KTK ion dalam tanah rendah, fiksasi fosfat tinggi, c organik rendah, masalah erosi sehingga berakibat pada penurunan fungsi lahan
Multivariate data analysis applied to spectroscopy
Comparison among principal component, partial least squares and back propagation neural network analyses for accuracy of measurement of selected soil properties with visible and near infrared spectroscopy
Summary
Teknologi Nirs (Near Infrared Reflectance Spectroscopy) Untuk Mendeteksi Kesuburan Tanah Studi Kasus di Provinsi Aceh: Review. Penilaian status kesuburan tanah dapat dilakukan melalui pendekatan uji tanah, masalah utama yang dihadapi di masyarakat adalah sulitnya memprediksi kandungan unsur hara dalam tanah. Salah satu teknologi saat ini yang sedang berkembang pesat dan memiliki potensi dapat digunakan untuk mendeteksi/memprediksi kandungan unsur hara adalah teknologi pantulan infra merah dekat atau near infrared reflectance (NIR). Banyak penelitian telah dilakukan dan dilaporkan terkait dengan penerapan teknologi inframerah jarak dekat, terutama untuk penentuan kesuburan dan kualitas tanah. Dalam paper ini dibahas beberapa review mengenai penelitian yang berada di Provinsi Aceh terkait pengaplikasian Teknologi NIRS untuk mendeteksi kesuburan tanah. Dengan adanya penelitian terkait teknologi NIR ini dapat menyelesaikan masalah terutama terhadap perbaikan dan evaluasi kesuburan tanah dengan cara memprediksi model yang tepat untuk pengukuran kandungan unsur hara pada tanah
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