NDVI vegetation index Articles
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Data with Drew: Vegetation Indices
The cameras we use on fixed wing and drone aircraft capture visual picture images (RGB), near infrared images (NIR), and thermal images. A formula is used to analyse the NIR data returned and provides Pollen Systems with two main metrics to measure plant vigor: NDVI (Normalized Difference Vegetation Index) and NDRE (Normalized Difference Red Edge). These vegetation indices are each unique ways to ...
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Spatial mapping of complex turfgrass sites: site-specific management units and protocols
Site-specific management units (SSMUs), similar in soil, plant, and irrigation requirements, are foundational to efficient management in precision agriculture. This concept is applied to management of complex turfgrass sites to improve irrigation practices. An experimental mobile unit mapped two golf fairways' turfgrass (Paspalum vaginatum SW.; ‘Salam’) in Naples, FL in summer 2006 on a 2.5 m ...
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A simple spectral index using reflectance of 735 nm to assess nitrogen status of rice canopy
Spatial distribution of canopy N status is the primary information needed for precision management of N fertilizer. This study demonstrated the feasibility of a simple spectral index (SI) using the first derivative of canopy reflectance spectrum at 735 nm (dR/d|735) to assess N concentration of rice (Oryza sativa L.) plants, and then validated the applicability of a simplified imaging system ...
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Farming Innovation: From Ammonia to AgTech Software
Just over a century ago, the Haber-Bosch process was invented in Germany, enabling the scalable production of copious amounts of ammonia for the very first time. This 1910 Eureka! moment meant farmers could fertilize their crops unlike ever before, growing food on a massive scale. So massive, in fact, a population explosion ensued – humankind went from 1.6 billion in 1900 to 7.7 billion in ...
By Vistex Inc
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How ZR3I Managed To Be The First Digital Agri SaaS Platform in the Arab World
INTRODUCTION Zr3i is a digital agricultural platform that provides data to the small farmers, agriculture businesses and all workers in the agriculture sector. Zr3i has developed a website and an android application for Egypt and the Arab World that are available in Arabic language for better understanding for local farmers. “Zr3i’s main objective is to provide detailed ...
By Farmonaut
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TrueNDVI vs. Synthetic NDVI Explained
Not all NDVI is created equal Normalized difference vegetation index (NDVI) imagery products have become increasingly common in precision agriculture applications. More companies are offering NDVI and NDVI-like products, including “Synthetic NDVI” images from drone platforms. At Sentera, it is our mission to provide you only the most valuable crop health data, which is why all of our ...
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Make the Most Out of Each Farmable Acre
Variable rate technology increases production and manage costs while reducing waste We farm in a time where working smarter, rather than harder, is essential to running a successful, sustainable business. There’s an incredible push in agriculture today for you to balance economics on the farm with environmental practices that keep farmland healthy for generations to come. The key to ...
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The Power of Fusing 3D with Multispec
3D assessment of plants became a commonly used technology in plant phenotyping to measure morphological and architectural features of plants. Although, 3D sensors such as PlantEye can be the workhorse for every phenotyping platform, it still lacks the ability to measure changes in color or other spectral information that are an important indicator for the plants physiological ...
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