The use of the vegetative index NDVI to predict grain crop yields

The need for unified approaches to determining the phenological phase of a reliable indicator vegetative index is one critical problems early forecasting crop yields using satellite monitoring. Several works domestic and foreign researchers formulate different estimates correlation relationship between NDVI yield. This study aimed obtain predictive models product winter wheat spring barley indicators that are adequate formalizing tasks predicting trend section crops within experimental farm Oryol State Agrarian University. Based on analysis dynamics vegetation NDVI, based multi-year studies, maximum mean annual values index, 0.72 0.56 barley, were determined.The 2021 season these 0.78 0.58. It was found peaks correspond earing with possible variation from 1 13 days. coefficients productivity 0.79 0.75 respectively, which suggests possibility prediction yield data their peak values. authors obtained polynomial (second-degree) functions. A forecast expands scope reasonable implementation plans at progressive development individual farm. Furthermore, it contributes food security Russia as whole.