Utjecaj mehaničkog suzbijanja korova i ručnog okopavanja na zakorovljenost parcele i prinos kukuruza

Scientific paper - Original scientific paper

• Title (english): The influence of mechanical weed control and manual hoeing on plot weed infestation and maize yield
• Author: Dubravko Filipović
• Author: Josip Lakić
• Author: Mateja Grubor
• Author: Igor Kovačev
• Author: Krešimir Čopec
• Author's institution: University of Zagreb; Faculty of Agriculture
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract (croatian)

Pokus s različitim varijantama suzbijanja korova u usjevu kukuruza proveden je u 2021. godini na lokaciji pored naselja Markovo Polje na praškasto ilovastom tlu. Primijenjene su tri varijante suzbijanja korova: 1. mehaničko suzbijanje korova između redova kukuruza motokultivatorom, a unutar redova ručno okopavanje motikom, 2. mehaničko suzbijanje korova samo između redova kukuruza motokultivatorom bez suzbijanja unutar redova, 3. bez ikakvog suzbijanja korova. Na pokusnom polju je pronađeno 14 različitih vrsta korova od kojih su prevladavali Amaranthus retroflexus (običan štir), Ambrosia artemisiifolia (ambrozija), Chenopodium album (bijela loboda) i Sorghum halepense (divlji sirak). Najmanja zakorovljenost pokusnih parcela očekivano je bila na parcelama gdje je primijenjena varijanta 1 suzbijanja korova, kod varijante 2 je prosječna masa korova po 1 m2 bila 223%, a kod varijante 3 čak 334% veća u odnosu na varijantu 1. Prinosi kukuruza su bili obrnuto proporcionalni sa zakorovljenosti pokusnih parcela, najviši prinosi su ostvareni kod varijante 1 s prosjekom od 6015 kg ha-1, kod varijante 2 prosječni prinos je bio 2907 kg ha-1, a kod varijante 3 1242 kg ha-1. Kombinacija mehaničkog suzbijanja korova i ručnog okopavanja može biti alternativa korištenju herbicida na manjim obiteljskim gospodarstvima i u ekološkom uzgoju kukuruza.

Abstract (english)

An experiment with different variants of weed control in the maize crop was carried out in 2021 at a location next to the Markovo Polje settlement on silty loam soil. Three variants of weed control were applied: 1. mechanical weed control between the maize rows with a motocultivator and manual hoeing within the rows, 2. mechanical weed control only between the maize rows with a motocultivator without control within the rows, 3. without any control of weeds. In the experimental field, 14 different types of weeds were found, of which Amaranthus retroflexus, Ambrosia artemisiifolia, Chenopodium album and Sorghum halepense prevailed. As expected, the lowest weed infestation of the experimental plots was on the plots where variant 1 of weed control was applied, in variant 2 the average mass of weeds per 1 m2 was 223%, and in variant 3 it was even 334% higher compared to variant 1. Maize yields were inversely proportional to the weed infestation of the experimental plots, the highest yields were achieved in variant 1 with an average of 6015 kg ha-1, in variant 2 the average yield was 2907 kg ha-1, and in variant 3 1242 kg ha-1. The combination of mechanical weed control and manual hoeing can be an alternative to the use of herbicides on smaller family farms and in organic maize production.

• Keywords (croatian): kukuruz; korovi; mehaničko uklanjanje korova; ručno okopavanje; prinos
• Keywords (english): maize; weeds; mechanical weeding; manual hoeing; yield
• Language: croatian
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review
• Publication version: Published version
• Journal title: Glasnik Zaštite Bilja
• Numbering: vol. 46., no. 3., pp. 69-78
• p-ISSN: 0350-9664
• e-ISSN: 2584-3265
• DOI: https://doi.org/10.31727/gzb.46.3.8
• URN:NBN: urn:nbn:hr:204:312605
• Publication: 2023
• Document URL: https://hrcak.srce.hr/300530
• Type of resource: Text
• Access conditions: Open access
• Created on: 2024-12-11 07:59:06