Soil protection technologies for growing maize on sloping lands

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F22%3A10175805" target="_blank" >RIV/00027006:_____/22:10175805 - 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

Soil protection technologies for growing maize on sloping lands

Popis výsledku v původním jazyce

Various methods of soil tillage and stand establishment with the aim of improving water infiltration into the soil and limiting water erosion were verified in field trials. in the period 2015-2017 four variants of soil tillage methods applied into barley or rye stubble were analysed: Autumn Strip-Till (AST), Spring strip-till (SST), Spring ploughing with seedbed preparation in form of narrow strips 0.15 m depth (SP) and Autumn Ploughing with spring seedbed preparation (compactor) i. e. conventional tillage (CT). The anti-erosion efficiency was tested using the rain simulator. The most effective were both strip-till methods. Runoff began after 770 - 1200 s in individual years. Post-harvest residues and stubble at AST and SST limited runoff and much more significantly soil loss. The highest soil losses were always found on CT reaching about 1.0 t/ha, in the extreme year more than 6 t/ha. In drier years the yield of silage maize reached 37.1 - 48.6 t/ha and 41.9 - 55.1 t/ha of fresh mass in 2015 and 2016 resp. and increased in the order CT &lt; SP &lt; AST &lt; SST. Under favourable rainfall conditions, yields for all methods were similar. The highest one was achieved at SP.Consequently the anti-erosion treatment of inter-row space were tested on slightly sloped fields in Věž in the period 2019-21t. Three variants of hoeing were compared with conventional tillage (CT): shallow hoeing (up to 5 cm) with V-shaped sweep in the middle between the rows (SH), deeper hoeing (up to 7cm) with chisel sweep on both sides of the rows (DH), DH combined with formation of pits in the inter-row space (DHP). Disturbing the soil surface and loosening the soil improved water infiltration and reduced runoff by 35-53% on SH and DH respectively, comparing CT.the pits retained the eroded soil and reduced its loss by up to 97% compared to CT. Silage corn yields on average in 2019-21 reached 46.5-56.5 t/ha and always increased with the intensity of tillage (CT &lt; SH &lt; DH &lt; DHP) as well as nitrogen uptake (175 - 219 kg N/ha).

Název v anglickém jazyce

Soil protection technologies for growing maize on sloping lands

Popis výsledku anglicky

Various methods of soil tillage and stand establishment with the aim of improving water infiltration into the soil and limiting water erosion were verified in field trials. in the period 2015-2017 four variants of soil tillage methods applied into barley or rye stubble were analysed: Autumn Strip-Till (AST), Spring strip-till (SST), Spring ploughing with seedbed preparation in form of narrow strips 0.15 m depth (SP) and Autumn Ploughing with spring seedbed preparation (compactor) i. e. conventional tillage (CT). The anti-erosion efficiency was tested using the rain simulator. The most effective were both strip-till methods. Runoff began after 770 - 1200 s in individual years. Post-harvest residues and stubble at AST and SST limited runoff and much more significantly soil loss. The highest soil losses were always found on CT reaching about 1.0 t/ha, in the extreme year more than 6 t/ha. In drier years the yield of silage maize reached 37.1 - 48.6 t/ha and 41.9 - 55.1 t/ha of fresh mass in 2015 and 2016 resp. and increased in the order CT &lt; SP &lt; AST &lt; SST. Under favourable rainfall conditions, yields for all methods were similar. The highest one was achieved at SP.Consequently the anti-erosion treatment of inter-row space were tested on slightly sloped fields in Věž in the period 2019-21t. Three variants of hoeing were compared with conventional tillage (CT): shallow hoeing (up to 5 cm) with V-shaped sweep in the middle between the rows (SH), deeper hoeing (up to 7cm) with chisel sweep on both sides of the rows (DH), DH combined with formation of pits in the inter-row space (DHP). Disturbing the soil surface and loosening the soil improved water infiltration and reduced runoff by 35-53% on SH and DH respectively, comparing CT.the pits retained the eroded soil and reduced its loss by up to 97% compared to CT. Silage corn yields on average in 2019-21 reached 46.5-56.5 t/ha and always increased with the intensity of tillage (CT &lt; SH &lt; DH &lt; DHP) as well as nitrogen uptake (175 - 219 kg N/ha).

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/QK1910382" target="_blank" >QK1910382: Inovace v pěstebních technologiích u okopanin a zeleniny pro lepší využití vody ze srážek i závlah, vyšší stabilitu výnosů a kvality produkce</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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