Impact of Weed Control by Hand Tools on Soil Erosion under a No-Tillage System Cultivation

In conservation agriculture, the no-tillage cultivation system and the retention of permanent vegetal cover are crucial to the control of soil erosion by water. This paper analyses the cultivation of maize under no-tillage, with particular reference to the effect produced on soil erosion when weed c...

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Main Authors: Rafael Blanco-Sepúlveda, Amilcar Aguilar-Carrillo, Francisco Lima
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/11/5/974
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author Rafael Blanco-Sepúlveda
Amilcar Aguilar-Carrillo
Francisco Lima
author_facet Rafael Blanco-Sepúlveda
Amilcar Aguilar-Carrillo
Francisco Lima
author_sort Rafael Blanco-Sepúlveda
collection DOAJ
description In conservation agriculture, the no-tillage cultivation system and the retention of permanent vegetal cover are crucial to the control of soil erosion by water. This paper analyses the cultivation of maize under no-tillage, with particular reference to the effect produced on soil erosion when weed control is performed by a hand tool (machete), which disturbs the surface of the soil, and to the behavior of the soil cover in these circumstances. The study area is located in the humid tropical mountains of northern Nicaragua (Peñas Blancas Massif Nature Reserve). The results obtained show that 59.2% of the soil surface was affected by appreciable levels of sheet and splash erosion, although the vegetal cover of the soil was relatively high (with average weed and litter cover of 33.9% and 33.8%, respectively). The use of machetes for weed control provoked considerable soil disturbance, which explained the high rates of erosion observed. Moreover, this form of soil management disturbs the litter layer, making it less effective in preventing erosion. The litter remains loose on the soil surface, and so an increase in soil cover does not achieve a proportionate reduction in the area affected by erosion; thus, even with 80–100% weed and litter cover, 42% of the cultivated area continued to present soil erosion.
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spelling doaj.art-0dbe4b9326d848729e59d07d01ccce822023-11-21T19:35:01ZengMDPI AGAgronomy2073-43952021-05-0111597410.3390/agronomy11050974Impact of Weed Control by Hand Tools on Soil Erosion under a No-Tillage System CultivationRafael Blanco-Sepúlveda0Amilcar Aguilar-Carrillo1Francisco Lima2Geographic Analysis Research Group, Department of Geography, Campus of Teatinos, University of Málaga, 29071 Málaga, SpainTropical Agricultural Research and Higher Education Centre (CATIE), CATIE 7170, Turrialba 30501, Costa RicaGeographic Analysis Research Group, Department of Geography, Campus of Teatinos, University of Málaga, 29071 Málaga, SpainIn conservation agriculture, the no-tillage cultivation system and the retention of permanent vegetal cover are crucial to the control of soil erosion by water. This paper analyses the cultivation of maize under no-tillage, with particular reference to the effect produced on soil erosion when weed control is performed by a hand tool (machete), which disturbs the surface of the soil, and to the behavior of the soil cover in these circumstances. The study area is located in the humid tropical mountains of northern Nicaragua (Peñas Blancas Massif Nature Reserve). The results obtained show that 59.2% of the soil surface was affected by appreciable levels of sheet and splash erosion, although the vegetal cover of the soil was relatively high (with average weed and litter cover of 33.9% and 33.8%, respectively). The use of machetes for weed control provoked considerable soil disturbance, which explained the high rates of erosion observed. Moreover, this form of soil management disturbs the litter layer, making it less effective in preventing erosion. The litter remains loose on the soil surface, and so an increase in soil cover does not achieve a proportionate reduction in the area affected by erosion; thus, even with 80–100% weed and litter cover, 42% of the cultivated area continued to present soil erosion.https://www.mdpi.com/2073-4395/11/5/974water erosionconservation agricultureno-tillageweed control by hand toolground vegetal cover
spellingShingle Rafael Blanco-Sepúlveda
Amilcar Aguilar-Carrillo
Francisco Lima
Impact of Weed Control by Hand Tools on Soil Erosion under a No-Tillage System Cultivation
Agronomy
water erosion
conservation agriculture
no-tillage
weed control by hand tool
ground vegetal cover
title Impact of Weed Control by Hand Tools on Soil Erosion under a No-Tillage System Cultivation
title_full Impact of Weed Control by Hand Tools on Soil Erosion under a No-Tillage System Cultivation
title_fullStr Impact of Weed Control by Hand Tools on Soil Erosion under a No-Tillage System Cultivation
title_full_unstemmed Impact of Weed Control by Hand Tools on Soil Erosion under a No-Tillage System Cultivation
title_short Impact of Weed Control by Hand Tools on Soil Erosion under a No-Tillage System Cultivation
title_sort impact of weed control by hand tools on soil erosion under a no tillage system cultivation
topic water erosion
conservation agriculture
no-tillage
weed control by hand tool
ground vegetal cover
url https://www.mdpi.com/2073-4395/11/5/974
work_keys_str_mv AT rafaelblancosepulveda impactofweedcontrolbyhandtoolsonsoilerosionunderanotillagesystemcultivation
AT amilcaraguilarcarrillo impactofweedcontrolbyhandtoolsonsoilerosionunderanotillagesystemcultivation
AT franciscolima impactofweedcontrolbyhandtoolsonsoilerosionunderanotillagesystemcultivation