Improving the drip irrigation system for crops in foothill areas Kazakhstan with minor elevation difference

摘要

This study was conducted with an objective to develop the construction of an open flow drip irrigation system for crops that do not require additional pumping equipment, providing even distribution of water along the length of the dripper line. The present study was based on general scientific methods, in particular, mathematical modelling of processes, graphical method and experimental production experiment. The analysis of results was carried out with regard to the field experience methodology andspecific conditions and challenges. The study was carried out by field experiments in Jambyl Region of Kazakhstan, in desert areas with a pronounced continental climate. The system provides the possibility to fully automate dripper cleaning simultaneously on the entire area of irrigated land, and to accumulate the calculated irrigation norms with a view to provide local moisturizing of plant root zone within a short period. The open flow drip irrigation system with technical means of supplying water tothe soil provides high-performance micro irrigation for farms and farmers in the arid zone. Optimizing the geometrical parameters of the irrigation circuit where the pre-irrigation moisture content, type, granulometric content, water-physical propertiesof the soil, interrelated position of drip lines, head-capacity curve of drippers and system pressure are the main factors, it is necessary that minimum water consumption be provided with a view to ensure crop yield and evolution.