Carl Bélec

TL;DR: In this article, the influence of soil and weather parameters on N responses of corn across 51 studies involving the same N rate treatments which were carried out in a diversity of North American locations between 2006 and 2009.

TL;DR: In this paper, the performance of two commercial sensors, the Yara N-Sensor/FieldScan (Yara International ASA, Germany) and the GreenSeeker (NTech Industries Inc., Ukiah, California, USA), for assessing the status of N in spring wheat (Triticum aestivum L.) and corn (Zea mays L.).

TL;DR: The combined ratios with SPAD (Chl) and Dualex readings were strongly related to applied N dose at all samplings dates, and found the most sensitive and robust through the season.

TL;DR: In the second growing season, the best clubroot control results were obtained with the finest lime materials and the preceding post-harvest intensive liming treatment, and the high cost of using calcium cyanamide was reduced by means of band application along the transplant rows.

TL;DR: In this paper, Dualex and SPAD were used in a wheat experiment in order to compare their respective performance in assessing leaf nitrogen (N) concentration, response to N topdressing application, soil nitrate (NO3)-N levels and in predicting grain yield.