Technical Parameters of Spraying with a Biostimulant as a Determinant of Biometrical Properties and Yield of Soybean Seeds

Krawczuk, Anna; Parafiniuk, Stanisław; Przywara, Artur; Huyghebaert, B.; Rabier, Fabienne; Limbourg, Quentin; Mostade, O.; Kocira, Sławomir

doi:10.2478/agriceng-2021-0014

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…The spraying nozzles are the main part of the sprayers; they can affect the uniformity of the spray application [5], droplet size [6], deposition of spray [7], and the yield [8]. The wear of a spraying nozzle due to the usage life could affect its performance [9].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Different Internal Designs of Hydraulic Nozzles under an Accelerated Wear Test

2022

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The use of worn-out agricultural nozzles in pesticide application has a negative effect on the efficiency and cost of the application process. It also has an effect on environmental pollution due to an excessive amount of pesticide being applied when spraying with worn-out nozzles. In this paper, the resistance to wear of three different internal design hydraulic nozzles was ascertained. Changes in the flow rate and spray distribution as a result of this wear were also investigated. The wear test was done inside a closed system, and it was accelerated using an abrasive material to generate 100 h of wear. The tested nozzles were the Turbo TeeJet (TT)-twin chambered, Turbo Twinjet (TTj60)-dual outlet, and Drift Guard (DG)-pre-orifice. Wear rate, flow rate, and the virtual coefficient of variation (CVv) were measured at different wear intervals. The results showed that the TTj60 type was the most resistant to wear, followed by the TT type and DG. The latter two types showed an increase in the flow rate only in the first 45 h of wear. Virtual coefficient of variation (CVv) values were less than 10% after finishing the test (after 100 h of wear) for the three types of nozzles, which are acceptable values according to International Organization for Standardization (ISO) 16122-2, 2015.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Different Internal Designs of Hydraulic Nozzles under an Accelerated Wear Test

2022

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“…They also indicate that glyphosate with polymer solution results in the highest percentage of droplets <100 µm, compared with other solutions. The study of [23] indicates that the droplet size spectrum is influenced by the nozzle type. Pesticide drift is the main problem accompanying the pesticide application process, and fine droplet size is the main cause.…”

Section: Introductionmentioning

confidence: 99%

Effect of Adjuvant, Concentration and Water Type on the Droplet Size Characteristics in Agricultural Nozzles

et al. 2022

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One of the goals of adding adjuvants to agricultural spray solutions is to enhance the droplet size characteristics of this spray. Droplet size, in turn, has an influence in the deposited spray quality, in addition to the drift and losses of spray to off-target places. The aim of this research was to evaluate the effect of adding adjuvants to two types of water from different sources on the droplet size characteristics. Two types of adjuvants were employed in the tests: the active substance content of the first adjuvant was a 50% aqueous solution of sodium salt of alkylbenzenesulfonic acid—10% (HY), whereas the second was from rapeseed oil (natural origin)—85% (OL). Both adjuvants were tested in two concentrations: the first was with the concentration recommended by the manufacturer (100%), whereas the second concentration was 50% of the recommended dose. Two types of water from different sources were used in the tests: the first was from a village in the eastern part of Poland (WS), whereas the second was tap water from the city of Lublin, Poland (WUP). Dv0.1, Dv0.5, or volume median diameter (VMD), Dv0.9, Sauter mean diameter (SMD), relative span (RS), and the droplet size distribution were measured and calculated as characteristics of the droplet size. Results showed that the source of water affected the influence of adding adjuvant to the spray solution. Water from the WS source with adjuvant resulted in a numerical decrease in the Dv0.5 values in the percentage of droplet size range below 150 µm, whereas water from the WUP source resulted in an increase in these values (except when adding the HY adjuvant at 50% concentration). Adjuvant concentration significantly (p < 0.05) influenced the features of Dv0.9, SMD, and RS. Adding the OL adjuvant type numerically decreased the percentage of droplet size below 150 µm, and the Dv0.5 values, but only when the WS water source was used.

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“…To achieve the optimal spray quality, it is important to choose the right nozzle and keep the droplet size in the appropriate range (Yao et al, 2020;Krawczuk et al, 2021). Adding adjuvants to the spray solution usually is to enhance the spraying process by changing the properties of the spray during application.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Adjuvant Concentration on Changes of Spray Characteristics and Spraying Parameters for Selected Types of Nozzles

Milanowski

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Parafiniuk

et al. 2022

Agricultural Engineering

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The paper presents the results of the research on the influence of the adjuvant concentration on the size of the drops produced by the spray nozzles of agricultural sprayers. For the tests, adjuvant Normaton with the composition of total nitrogen, amide nitrogen (N-NH2) and phosphorus pentoxide (P2O5) was used. The adjuvant was added to the water taken from the municipal water supply system of the city of Lublin. The tests were carried out for three concentrations, i.e. 75%, 100%, and 125% of the adjuvant concentration recommended by the manufacturer, and water without the adjuvant. The surface tension of water with adjuvant was examined for each nozzle. Then, the size of the obtained droplets was measured for each adjuvant concentration. Two types of nozzles were used for spraying, standard nozzle AP 120-03 and 6MSC injector nozzle, both with the same nozzle flow rate, but with a different design. The size of the droplets produced was measured on a HELOSVARIO laser diffractometer by Sympatec. The droplet measurement was performed at a pressure of 3 bar. The nozzle was placed 50 cm above the diffractometer laser light line. The droplet size was measured in three places of the sprayed liquid, i.e. in the position of the nozzle axis, 30 and 60 cm from the nozzle axis. It was shown that the addition of the adjuvant influenced the number of droplets produced in the indicated droplet size classes.

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Technical Parameters of Spraying with a Biostimulant as a Determinant of Biometrical Properties and Yield of Soybean Seeds

Cited by 8 publications

References 9 publications

Evaluation of Different Internal Designs of Hydraulic Nozzles under an Accelerated Wear Test

Evaluation of Different Internal Designs of Hydraulic Nozzles under an Accelerated Wear Test

Effect of Adjuvant, Concentration and Water Type on the Droplet Size Characteristics in Agricultural Nozzles

The Effect of Adjuvant Concentration on Changes of Spray Characteristics and Spraying Parameters for Selected Types of Nozzles

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