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Recently we got a question from the customer of Petiole mobile application related to his need to refer to the app in his dissertation. He was doing research in agriculture science and needed to quote Petiole as an instrument of leaf area measurement. Petiole is already featured by two scientific articles: Hrytsak, L. R., Herts, A. I., Nuzhyna, N. V., Cryk, M. M., Shevchenko, V….

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We get many questions about fixing a problem of camera calibration at Petiole, mobile application for specific leaf area measurement. That’s why we decided to suggest two general solutions for this issue. Solution 1 – Update your Petiole app You must go to the Petiole app page at Google Play Market and check for any updates. We try to fix different problems, appearing in the…

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[embedyt] https://www.youtube.com/watch?v=trKJ_GPXHYw[/embedyt] In this video we made a brief how to measure leaf area with a smartphone and a mobile application Petiole. It clear shows that specific leaf area measurement is not a problem and even to measure total leaf area is not an issue – less than in a minute with nothing special. Only Petiole and its Petiole kit (measuring stand and calibration pad)…

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The analysis of the three measurement methods of leaf blade area of young bi-axis apple trees on rootstock 54-118 was made. High accuracy of the measurement results by a method of area calculation within a leaf contour on millimeter graph paper (31, 21 sq.cm ) and with help of a method of computer sight using application “Petiole” on Smartphone with operational system Android (31, 28…

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Abstract Fertilizer plays an important role in increasing rice yield. More than half of all fertilizer applied to the field is not taken up, resulting in environmental damage and substantial economic losses. To address these concerns, a low-cost, coated compound fertilizer named “Xiang Nong Da” (XND), requiring only a single basal application, was studied. A two-year field experiment was conducted to test the effects of…

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Simple answers to really difficult practical questions in agriculture and ecology. Surely, with Petiole :). If you have ever tried to measure leaf area of wheat, soybean or pear, share your experience with us! We suggest you can tell how “easy” it was to make the surface of leaves flat and not curvy. Considering our hands-on experience, it is almost impossible particularly in wheat and…

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Namaste! We are terrifically delighted to be among participants of 2017 Global Entrepreneurship Summit in Hyderabad, India. This year’s Summit is highlight the theme Women First, Prosperity for All, and focuses on supporting women entrepreneurs and fostering economic growth globally. Petiole is directly involved in STEM and making agriculture entrepreneurship closer to women worldwide. Hence, we are here to plan our next milestones :). But…

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