Uporabnost različnih šob z dvojnim simetričnim curkom v ozimni pšenici (Triticum aestivum)

Bojc, Jurij (author), Vučajnk, Filip (mentor)

V letu 2022 smo na Laboratorijskem polju BF izvedli poljski poskus, v katerem smo uporabili 4 različne šobe Avi Twin z dvojnim simetričnim curkom (01, 02, 03 in 04) v ozimni pšenici. Tlak škropljenja (3,0 bar) in vozna hitrost (6,0 km/h) sta bila konstantna. V poskusu smo primerjali kakovost in količino nanosa na sprednji in zadnji strani klasa ter na listu zastavičarja (1. list) in nižje ležečemu listu (2. list). Za ugotavljanje kakovosti nanosa smo uporabili na vodo občutljive lističe, medtem ko za količino nanosa barvilo Helios 500 SC (tracer). Odtise kapljic smo izmerili s kamero in programom Wise Node, medtem ko smo količino tracerja analizirali s tekočinsko kromatografijo visoke ločljivosti (HPLC). Ugotovili smo, da s šobami 03 in 04 dosežemo večjo pokritost in večjo količino tracerja na klasih in listih ozimne pšenice kot pri šobah 01 in 02. S tem smo potrdili obe postavljeni hipotezi. Manjša pokritost je bila pri vseh uporabljenih šobah na zadnji strani klasa.

• Language: Slovenian
• Keywords: šobe, dvojni simetrični curek, pokritost, ozimna pšenica
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Year: 2023
• PID: 20.500.12556/RUL-149607
• COBISS.SI-ID: 163867139
• Publication date in RUL: 08.09.2023

Secondary language

• Language: English
• Title: Usefulness of different nozzles with double synetric jet in winter wheat (Triticum aestivum)

Abstract

In 2022 field trial was conducted on the laboratory field of BF, in which we used 4 different Avi Twin nozzles with double symmetric jet (01, 02, 03 in 04) in winter wheat. Spraying pressure of 3.0 bar and speed of 6.0 km/h were constant. In the trial we compared deposit quality and deposit quantity on the front and the back side of wheat head, on the flag leaf (1st leaf) and lower lying leaf (2nd leaf). For the determination of deposit quality water sensitive papers were used, while for the deposit quantity dye Helios 500 SC (tracer). Deposit impressions were measured with camera and program Wise Node, while tracer quantity was analyzed with high-performance liquid chromatography (HPLC). We established that with the 03 and 04 nozzles higher coverage and higher tracer quantity were achieved on the wheat heads and leaves than with the 01 and 02 nozzles. With this, we confirmed both hypotheses. By all used nozzles lower coverage was on the back side of wheat head.

• Keywords: nozzles, double symmetric jet, coverage, winter wheat