The influence of planting speed of a maize vacuum planter on plant spacing variability and ear parameters

Petrović, Igor (avtor), Vučajnk, Filip (avtor), Trdan, Stanislav (avtor), Bernik, Rajko (avtor), Vidrih, Matej (avtor)

Planting speed has an important impact on plant spacing variability and also grain yield. In a two-year study, the effects of planting speeds of 6, 9, and 12 km/h on maize plant spacing and, consequently, ear parameters were investigated. We wanted to determine whether increasing the planting speed increases the plant spacing parameters and what effects this has on ear parameters and grain yield. In both experimental years, no differences between the three planting speeds were found in terms of mean plant spacing, plant density, the multiple index, and the miss index. However, the standard deviation of reference spacings and precision increased with the increase in planting speed from 6 to 12 km/h. In 2022, the differences between plant spacings measured using UAV photogrammetry and manual measurements were smaller (<1 cm) than in 2023. The plant spacing data obtained from 3D point clouds show a strong correlation (r = 0.97) with the manual measurements for all three planting speeds. The proposed method is suitable for measuring plant spacing in maize. In 2022, no differences appeared in grain yield and ear parameters between the planting speeds; however, in 2023, the grain yield and kernel mass per ear were greater at planting speeds of 6 and 9 km/h than at a planting speed of 12 km/h in 2023. Individual ear analysis in 2023 showed an increase of 0.73 g in kernel mass per plant with a 1 cm increase in plant spacing, resulting in a 58 kg/ha yield increase.

• Jezik: Angleški jezik
• Ključne besede: planting speed, plant spacing variability, unmanned aerial vehicle, yield parameters, maize
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta ; FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: 16 str.
• Številčenje: Vol. 15, iss. 2, art. 462
• PID: 20.500.12556/RUL-167375
• UDK: 631
• ISSN pri članku: 2073-4395
• DOI: 10.3390/agronomy15020462
• COBISS.SI-ID: 226548995
• Datum objave v RUL: 18.02.2025

Gradivo je del revije

• Naslov: Agronomy
• Založnik: AG
• ISSN: 2073-4395
• COBISS.SI-ID: 522953241

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: hitrost sejanja, vakuumske sejalnice, razmik med rastlinami, pridelek, koruza

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P4-0092
• Naslov: Zdravje živali, okolje in varna hrana

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P2-0263
• Naslov: Mehanika v tehniki