Analysis of Spatial Variability of Soil Fertility in Precision Agriculture Technologies

摘要

The paper presents the results of the analysis of the technological components of precision agriculture, the efficiency of their use, the main current trends and prospects of development. Based on the data of scientific and scientific--technological researches from the leading specialists in the field of precision agriculture, as well as the results of their own developments, the advantages and level of effectiveness of its component components have been identified. It is established that the introduction of parallel driving systems, the introduction of mineral fertilizers and plant protection products can save up to 50% of material resources. It has been shown that the distance forecasting of the grain yield and wheat straw yield of winter wheat and the construction of high resolution digitization charts on the basis of spectrozonal analysis of the Sentinel-2A image provided satisfactory results. In conditions of significant variability of soil cover, the ave rage error of approximation of grain yield was Agrain = 14.5%, straw according to Astraw = 15.3%. The determination coefficients for grain yield and straw were respectively 0.64 and 0.74.