Digital assessment of nutrients in soil and fertilizer needs of plants in growth depression

The article outlines a new approximate digital method for calculating the nutrient content in the soil. A digital model for determining the fertilizer needs of agricultural plants and the content of nutrients in the soil is determined on the basis of the following statement: yield and yield increase raise with an increase in the number of growth factors, in proportion to the amount of crop that has not reached the maximum potential yield, and the possible value of the yield above a certain minimum (initial) value. For the first time, the effect of depression on the growth and development of plants has been studied (approximately). At the same time, it was established that the well-known solution to this question regarding the second approximation of the law of action of growth factors (the Baule-Mitscherlich theory) is erroneous. Examples of calculations are considered that show good agreement between the experimental and calculated yield values for different conditions.