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How Do Long Term Crop Rotations Influence Weed Populations: Exploring the Impacts of More than 50 Years of Crop Management in Serbia

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2022
How_Do_Long_pub_2022.pdf (4.585Mb)
Authors
Saulic, Markola
Oveisi, Mostafa
Djalovic, Ivica
Bozic, Dragana
Pishyar, Alireza
Savić, Aleksandra
Prasad, PV Vara
Vrbničanin, Sava
Article (Published version)
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Abstract
Crop rotation is known as an eco-friendlier approach, as provides diversification in crop management systems, modifies intensive pressure on the agricultural ecosystem, utilizes various soil horizons, and prevents the establishment of specific pests and weeds. We set out here a study on the farms that have been managed over 50 years of specific continuous crop management programs. The experimental treatments were in a different management system: monoculture of maize, winter wheat, and soybean, 2-year crop rotation (winter wheat–maize) with and without chemical fertilizer, and 3-year crop rotation (winter wheat–soybean–maize) with and without chemical fertilizer and manure. We took soil samples six times from 2014 to 2017 prior to sowing and after harvesting each year. Weed seeds were extracted from soils and identified and counted by species. We, upon the data of a long term experiment of crop rotation, could conclude that crop rotations with more crops in the sequence are significant...ly effective in maintaining weed populations, a low-input crop production could reach a constant low population below an important damaging density, and therefore will be a more sustainable crop production while chemical fertilizers would change the soil’s chemical and structure and imbalance the plant population diversity and manures with high weed seed infestations have the potential to totally eradicate crop rotation effects, Therefore, clean manures or compost are highly recommended.

Keywords:
crop rotations / fertilizer / maize / manure / soil seed bank / soybean / wheat
Source:
Agronomy, 2022, 12, 8, 1772-

DOI: 10.3390/agronomy12081772

ISSN: 2073-4395

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URI
https://www.mdpi.com/2073-4395/12/8/1772
http://aspace.agrif.bg.ac.rs/handle/123456789/6166
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