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Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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The influence of plant mulches on the content of phenolic compounds in soil and primary weed infestation of maize

100%
Stoklosa A., Hura T., Stupnicka-Rodzynkiewicz E., Dabkowska T., Lepiarczyk A.
Acta Agrobotanica
|
2008
|
tom 61
|
nr 2
In growing maize, an increase in the content of phenolic compounds and selected phenolic acids in soil was found after the incorporation of white mustard, buckwheat, spring barley, oats and rye mulches into the soil. The highest content of phenolic compounds in soil was found after oats mulch incorporation (20% more than in the control soil). The highest content of selected phenolic acids was found for the soil with the oats and rye mulch. Among the phenolic acids investigated, ferulic acid was most commonly found in the soil with the plant mulches. However, two phenolic acids: the protocatechuic and chlorogenic acid, were not detected in any soil samples (neither in the control soil nor in the mulched soil). At the same time, a decrease in the primary weed infestation level in maize was found in the plots with all the applied plant mulches, especially on the plots with oats, barley and mustard. The plant mulches were more inhibitory against monocotyledonous weeds than dicotyledonous ones. During high precipitation events and wet weather, a rapid decrease in the content of phenolic compounds in soil and an increase in the primary weed infestation level in maize were observed.
2
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The effect of no-ploughing tillage using cover crops on primary weed infestation of carrot

84%
Blazewicz-Wozniak M., Patkowska E., Konopinski M., Wach D.
Acta Scientiarum Polonorum. Hortorum Cultus
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2015
|
tom 14
|
nr 2
In the era of sustainable agriculture, is looking for new unconventional methods to control weed infestation. The aim of the study was to determine the effect of cover crop biomass and the manner and time of mixing it with the soil on primary weed infestation of carrot compared with the conventional plough cultivation without the use of cover crops. The cover crop plants modified the state and reduced the degree of primary weed infestation of carrot compared to cultivation without cover crops. White mustard was the most effective in reducing primary weed infestation of carrot in all variants of tillage. Phacelia, buckwheat and oat cover crops also limited largely the number of weeds in carrot. The largest number of weeds was recorded in no-cover crop cultivation in no-tillage objects and those cultivated using subsoiler before winter, and cultivating in spring with aggregate. The largest reduction of primary weed infestation compared to conventional tillage was achieved in cultivation on ridges, with white mustard, phacelia or oats cover crops and weakest after vetch cover crop. In no-ploughing flat tillage system, lack of cover crop significantly increased the degree of weed infestation compared to conventional tillage, while the use of cover crops contributed to the reduction of primary weed infestation of carrot compared to cultivation without cover crops.
3
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Zachwaszczenie pierwotne marchwi w warunkach uprawy konserwujacej

67%
Blazewicz-Wozniak M.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2004
|
tom 03
|
nr 1
165-174
In field experiment conducted in 1998–2000 the influence of conservation tillage on primary infestation of carrot was investigated. In experiment four cover crop mulches (Sinapis alba L., Vicia sativa L., Phacelia tanacetifolia B., Avena sativa L.) were applied. No-tillage cultivation system caused the significant increment of primary weed infestation in carrot in comparison with conventional tillage. Cover crop mulches reduced significantly the number of weeds before and after carrot emergence. The most of weeds stepped out on control objects. Among investigated cover crops a profitable effect on decrease of weed infestation had Phacelia tanacetifolia and Avena sativa mulches.
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