Experiences with cultivation of maize with under-sowing cover crops in the Czech republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F23%3A10176794" target="_blank" >RIV/00027006:_____/23:10176794 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Experiences with cultivation of maize with under-sowing cover crops in the Czech republic

Popis výsledku v původním jazyce

The aim of this study was to introduce innovative system of maize cultivation with under-sowing cover crops. Since 2019 we tested various species (legumes, grasses and some annual crops) which were seeded in-between the maize rows in the growth stage of the third to fourth leaf of maize. In that time there is enough light in-between the rows that the cover crop species can germinate and growth before maize canopies, and do not significantly compete with maize plants during growing season. This involves inter-row cultivation with seeding of cover crops, application of liquid nitrogen fertilizer into the soil near the root zone and strip application of herbicide in the maize row. Results from field experiments (three different locations in the Czech Republic) showed different growth dynamic, biomass production and soil cover in different cover crops. Species as Italian ryegrass (Lolium multiflorum ssp. italicum), phacelia (Phacelia tanacetifolia), rye (Secale cereale) and crimson clover (Trifolium incarnatum) proved a rapid growth. The production of dry matter biomass in above mentioned species was between 0.5 - 1.5 t ha-1 and soil cover were almost 100%. On the other hand, a 5-15% decrease in the yield of silage biomass and grain was found. A 40-55% reduction in surface runoff and soil loss was found compared to plowing. Variants with slower-emerging species of cover crops were often weeded with different weed species depending on the soil seedbank. Cropping system with suitable inter-seeding cover crops in maize may be a promising technology applicable on sloping areas with potential of water erosion reduction. It can also be used in production areas as a more environmentally friendly technology due to the reduction of herbicides.

Název v anglickém jazyce

Experiences with cultivation of maize with under-sowing cover crops in the Czech republic

Popis výsledku anglicky

The aim of this study was to introduce innovative system of maize cultivation with under-sowing cover crops. Since 2019 we tested various species (legumes, grasses and some annual crops) which were seeded in-between the maize rows in the growth stage of the third to fourth leaf of maize. In that time there is enough light in-between the rows that the cover crop species can germinate and growth before maize canopies, and do not significantly compete with maize plants during growing season. This involves inter-row cultivation with seeding of cover crops, application of liquid nitrogen fertilizer into the soil near the root zone and strip application of herbicide in the maize row. Results from field experiments (three different locations in the Czech Republic) showed different growth dynamic, biomass production and soil cover in different cover crops. Species as Italian ryegrass (Lolium multiflorum ssp. italicum), phacelia (Phacelia tanacetifolia), rye (Secale cereale) and crimson clover (Trifolium incarnatum) proved a rapid growth. The production of dry matter biomass in above mentioned species was between 0.5 - 1.5 t ha-1 and soil cover were almost 100%. On the other hand, a 5-15% decrease in the yield of silage biomass and grain was found. A 40-55% reduction in surface runoff and soil loss was found compared to plowing. Variants with slower-emerging species of cover crops were often weeded with different weed species depending on the soil seedbank. Cropping system with suitable inter-seeding cover crops in maize may be a promising technology applicable on sloping areas with potential of water erosion reduction. It can also be used in production areas as a more environmentally friendly technology due to the reduction of herbicides.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

<a href="/cs/project/QK1910334" target="_blank" >QK1910334: Inovace šetrných systémů pěstování kukuřice s využitím podsevových plodin k omezení degradace půdy a zlepšení hospodaření s vodou v podmínkách měnícího se klimatu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů