Aspects of soil zoning by crop irrigation necessity

Moisture conditions required by crops are created with the help of irrigation in the soil. However, there is a number of negative consequences of irrigation. One of them is soil formation conditions changing which can decrease soil fertility. It is necessary to consider soil heterogeneity and stocha...

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Bibliographic Details
Main Authors: Markin, V. N., Glazunova, I. V., Sokolova, S. A., Matveeva, N. I.
Format: Conference Proceeding
Language:English
Subjects:
Heterogeneity
Irrigation
Land reclamation
Moisture effects
Soil conditions
Soil fertility
Soil moisture
Weather
Zoning
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Summary:Moisture conditions required by crops are created with the help of irrigation in the soil. However, there is a number of negative consequences of irrigation. One of them is soil formation conditions changing which can decrease soil fertility. It is necessary to consider soil heterogeneity and stochastic weather conditions, while irrigation substantiation. Therefore, a quantitative irrigation substantiation taking into account landscape: macro, meso and micro (precise land reclamation) is required. Irrigation substantiation is based on a comparison of plant requirements for soil moisture and environmental conditions (actual soil moisture). On the base of the above comparison a probability of irrigation necessity is determined. Irrigation necessity depends on soil heterogeneity. The purpose of the work is to determine the function, which makes it easier to calculate the probability irrigation necessity depending on the parameters of soil heterogeneity to provide soil zoning taking into account different sizes of agricultural land sites. The function makes it possible to determine the irrigation probabilities depending on the average annual moisture of soil. The function is a linear dependence in the range of wilting moisture of plants up to the full moisture capacity.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0128245