The efficiency of using different fertilization systems in dryland and irrigated crop rotations on ordinary carbonate chernozems of the Central Ciscaucasia

Tamara Bizhoeva,Aslanbek Kushkhabiev,Asiyat Sarbasheva,Olga Batyrova,Ruslan Bizhoev,R.Z Abdulkhalikov

doi:10.1051/e3sconf/202126201011

Tamara Bizhoeva, Aslanbek Kushkhabiev + Show 4 more

Open Access

https://doi.org/10.1051/e3sconf/202126201011

Copy DOI

Abstract

The search for the rational use of fertile irrigated land in the steppe zone of Central Ciscaucasia and the determination of factors for the sustainable production of crop products, provided that soil fertility is maintained, remained as valid today as ever. The relevance of research is also increasing due to changes in climatic characteristics in specific agro-landscape conditions, including, an increase in average daily and annual air temperatures by 2 - 50С. The novelty of research is the establishment of the most efficient fertilization systems in dryland and irrigated conditions to increase winter wheat yields, to increase the productivity of 1 ha of crop area, as well as to maintain and reproduce soil fertility and to increase the productivity of irrigated crop rotation. The article contains the research results on the use of different fertilization systems and their influence on winter wheat yields and crop rotation productivity in dryland and irrigated agriculture on ordinary carbonate chernozems in specific agro-landscape, soil and climatic characteristics of the Central Ciscaucasia.

Highlights

Intensive use of arable land and accelerated mineralization of organic matter, together with a sharp decrease in the use of organic and mineral fertilizers, irrational use of irrigation water and an insufficient share of perennial grasses in crop rotation leads to a general decline in soil fertility and, as a result, a decline in crop yields and crop rotation efficiency [1]
As a result of scientific research in 2018-2020 it was identified that the efficiency of the use of different mineral and organo-mineral fertilization systems in conditions of natural humidification and irrigation on ordinary carbonate chernozem of the Central Ciscaucasia differed and depended largely on water availability and moisture reserves in the soil
With an optimal combination of factors, the efficiency of the studied fertilization systems increased in dryland crop rotation by 1.8-2.2 times

Summary

Introduction

Intensive use of arable land and accelerated mineralization of organic matter, together with a sharp decrease in the use of organic and mineral fertilizers, irrational use of irrigation water and an insufficient share of perennial grasses in crop rotation leads to a general decline in soil fertility and, as a result, a decline in crop yields and crop rotation efficiency [1]. In this regard, farming systems are focused on evidence-based crop rotation systems that reduce production costs, improve soil fertility, regulate the food, water and air regimes of the soil, without requiring additional material costs, which is very important for producing environmentally friendly crop products and reducing their cost [2].

Methods

Results

Conclusion