Distribution of hydraulic fluids of bacterial preparations in the space under the hoe of seeding unit

Abstract

There are considered the matters of stabilizing fluid consumption under low (down to 0.025 MPa) pressures in the system when applied growth-regulating preparations simultaneously with sowing. A low pressure regulator included in the hydraulic fluid dispensing system allows receiving excess pressure above fluid in the closed tank. This increases the performance of the metering device, and the mounting of fluid consumption stabilizer at the supply tap provides stabilization of fluid flow over time. Results are given from investigations into the distribution of liquid growth regulators in the space under the hoe of seeding unit; basic dependences of their distribution using deflecting elements are presented. The distribution of hydraulic fluid of growth regulators is determined by limited geometrical sizes of seeding unit. Experiments with the purpose of confirmation of theoretically grounded findings were carried out using a specially developed pilot plant with a device for determining spray angle of hydraulic fluid. Results from the evaluation of spraying quality have shown that the discrepancy between theoretical and experimental values of the spray angle makes up from 2.3 to 6.7% at different heads of water. The suggested technical solution for spraying hydraulic fluids of bacterial preparations in the space under the hoe of seeding unit provides high-quality distribution along the entire crop sowing strip.