DEVELOPMENT OF INVESTMENT PROJECT ELEMENTS BASED ON THE PROJECT FOR THE ORGANIZATION AND ARRANGEMENT OF THE TERRITORY OF AN INTENSIVE GARDEN
Abstract and keywords
Abstract (English):
The study establishes that vegetable farming represents one of the most important and technologically advanced sectors of agricultural production. The research confirms that seedling cultivation remains the predominant method for vegetable production. For seedling cultivation, the implementation of cassette technology in seasonal polyethylene greenhouses with irrigation systems is recommended. However, contemporary stationary irrigation systems capable of providing adequate rainfall simulation cannot be installed in seasonal greenhouse structures due to their insufficient structural stability. To address this challenge, researchers from the Federal State Budgetary Scientific Institution "VNII Raduga" developed a mobile hose-type sprinkler system based on the existing DSH-0.6 unit, optimizing its parameters for irrigation of vegetable seedlings in greenhouse cassette systems. The optimized system meets critical rainfall quality parameters: an effective irrigation coefficient of at least 0.7 and average rainfall intensity not exceeding 0.15 mm/min. The proposed sprinkler system maintains positional operation technology, which contributes to reduced rainfall intensity. Current operational methodologies for rainfall simulation devices and their performance evaluation assume a 0.5 diameter overlap between irrigation positions. Under protected cultivation conditions, this configuration significantly reduces irrigation efficiency due to unirrigated zones. To overcome these limitations, a technological solution was proposed involving an increase in position overlap from 0.5 to 0.7 diameters. Theoretical calculations indicate this modification would reduce unirrigated areas from 20 m² to 4 m² while increasing the effective irrigation coefficient to 0.74. Laboratory and field studies conducted to validate the proposed technological solution demonstrated that a 0.7 diameter position overlap achieves an effective irrigation coefficient of 0.72 with average rainfall intensity of 0.15 mm/min, fully complying with agrotechnical requirements for cassette seedling irrigation.

Keywords:
oroshenie, dozhdevanie, shlangovyy dozhdevatel', kachestvennye pokazateli dozhdya, koefficient effektivnogo poliva, ravnomernost' dozhdya, intensivnost' dozhdya, zaschischennyy grunt, teplica, kassetnaya rassada
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