The Role of Weed and Cover Crops on Soil and Water Conservation in a Tropical Region

Araújo-Junior, Cezar Francisco; Martins, Bruno Henrique; Higashi, Vinicius Yugi; Hamanaka, Carlos Alberto

doi:10.5772/59952

Cited by 3 publications

(3 citation statements)

References 30 publications

(32 reference statements)

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“…This is a surface layer of variable thickness created by the disaggregation of soil by water droplets, resulting in reduced water infiltration (Sidiras and Vieira, 1984, Araujo-Junior et al, 2011. In a test that simulated rain at an intensity of 85 mm h-1 on the same Dystroferric Red Latosol used in this study, Araujo-Junior et al (2015) showed that water infiltration can be reduced to 7 mm h -1 in areas with insufficient plant cover. This result reinforces the fundamental role that plant cover plays in maintaining the physical and hydraulic properties of surface level tropical soils, as well as in the replenishment of springs and in precipitation recycling, also enabling the total infiltration of precipitated water and the exit of water through transpiration.…”

Section: Soil-water Infiltrationmentioning

confidence: 99%

Physical and hydraulic properties of a Latosol influenced by land use and management changes

Costa¹,

Araújo-Junior²,

Caramori³

et al. 2016

Afr. J. Agric. Res.

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Changes to soil use can modify the soil's physical and hydraulic properties, affecting its potential for productivity. This study aimed to characterize the physical and hydraulic properties of a clayey Dystroferric Red Latosol under the following land uses: conventional tillage (CT), direct drilling systems (DD), and native forest (NF). The study was conducted in Londrina (PR), Brazil, (23°23′ S, 50°11′ W and altitude of 585 m). Soil samples were collected at depths of 0 to 0.10, 0.10 to 0.20, 0.20 to 0.30, and 0.30 to 0.40 m. The following properties were evaluated: size distribution of solid particles, particle density, soil bulk density, total porosity, macroporosity, microporosity, water infiltration, and soil water retention curve. Conventional tillage and DD of this land modified soil physical and hydraulic properties from that under NF. The NF soil had greater organic matter content in its surface layer, a greater number of macropores, lower density, and less water retention capacity than soils from the CT and DD systems. At a precipitation rate of 70 mm h -1 , only the CT system exhibited surface run-off. This was due to rupturing of the porous system and a lower infiltration rate. In contrast, plant residues in the DD system protected the soil structure against damage caused by direct impact due to raindrops, allowing for total infiltration of simulated rainfall events. The NF soil is important in extracting and replenishing groundwater stores. However, it does not retain more water than the other systems in the surface layers.

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Section: Soil-water Infiltrationmentioning

confidence: 99%

Physical and hydraulic properties of a Latosol influenced by land use and management changes

Costa¹,

Araújo-Junior²,

Caramori³

et al. 2016

Afr. J. Agric. Res.

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“…As plantas daninhas competem diretamente com as espécies vegetais cultivadas por fatores de crescimento tais como água, luz, espaço e nutrientes, ou de modo indireto, em razão da ação alelopática, por meio da liberação de substâncias químicas que podem ser tóxicas, estimulantes ou nocivas ao desenvolvimento de outras espécies vegetais (Soares et al, 2010;Vasconcelos et al, 2012). As perdas ocasionadas pela competição por nutrientes reduzem a produtividade das culturas que pode variar entre 45 a 95% de acordo com as espécies de invasoras presentes na área, com o nível de infestação, as condições edafoclimáticas, podendo resultar na inviabilização econômica e, em casos extremos, em perda total da produção (Araujo-Junior et al, 2015;Vilà & Hulme, 2017). A presença de plantas daninhas em áreas de cultivo agrícola constitui-se, assim, um dos principais fatores bióticos que interferem no cultivo de plantas de interesse agronômico em regiões tropicais e a predominância de espécies infestantes na área podem ainda interferir negativamente, uma vez que o uso de herbicidas poderá vir a ser empregado, o que seria prejudicial ao meio ambiente (Bester et al, 2020;Kozlowski et al, 2002;Schaffner et al, 2020).…”

Section: Introductionunclassified

Reação de plantas daninhas ao parasitismo pelo nematoide das galhas da goiabeira, Meloidogyne enterolobii

Mota

Junior

Santos

2023

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“…Weeds provide food for man, animals and birds, hiding places and even homes for them as part of the biodiversity components, and weeds major component of the agro-ecosystem, protect the soil from wind and water erosion, provide food and drug for man and also to his animals [21]; [9]. Weeds also contribute to soil organic matter accumulation when it decays; provide a conducive environment for micro-biological activities to thrive and to break down some of the plant materials [22]; [23].…”

Section: Introductionmentioning

confidence: 99%

Impact of farming system practices on weeds in arable farmlands in University of Port Harcourt and environs, Rivers State-Nigeria

Ogazie¹,

Agbagwa²,

Ochekwu³

2022

World J. Adv. Res. Rev.

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Crop production involves the combination of various farming systems practices to produce food and cash crops and at the same time have a reasonable control over weed infestation without course to soil health. Weeds are part of agroecosystems community and are neighbors to our crops and the soil. The work was aimed to investigate the weeds that are common in the sites chosen. A simple reconnaissance weed enumeration survey was adopted for the twenty-two (22) arable farmlands by walk through the farms within and round the boundaries. This was investigated between June 2020 as wet season and in January, 2021 as dry season respectively. A total of 154 weed species were recorded for both wet and dry seasons. The wet and dry seasons had 113 and 120 weed species made up of 37 and 36 families respectively. It revealed 168 broad leaved, 32 grasses and 26 sedges, composed of annual and perennial weed species. All the farms were continuously cultivated and mixed cropped, with 27 crop species identified and recorded. The farmers most preferred crops are Manihot esculenta Crantz being a tuberous crop and Zea mays L., grain cereal with 90.91% each from the overall percentage of individual crop species recorded from farmers who planted them on their farmland (Table 1) respectively, and been staple food items in most part of Nigeria, while the least cropped species are (Amaranthus hybridus L., and Solanum lycopersicon L., Ocimum. americanum L., and Solanum sp.) with 4.54% each respectively which are vegetables to supplement peoples ‘diet. Farming systems methods has a tremendous influence on weed species composition in arable farmlands either during the cropping season (wet) or off the season (dry). Some activities are very peculiar within crop production for example bush clearing, and burn, soil tillage in any form or pattern and weed removal either culturally, biological or chemically due impact on weed species in arable farmlands in short or long term and therefore, its impact on crop species and the environment should be minimized and sustained.

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The Role of Weed and Cover Crops on Soil and Water Conservation in a Tropical Region

Cited by 3 publications

References 30 publications

Physical and hydraulic properties of a Latosol influenced by land use and management changes

Physical and hydraulic properties of a Latosol influenced by land use and management changes

Reação de plantas daninhas ao parasitismo pelo nematoide das galhas da goiabeira, Meloidogyne enterolobii

Impact of farming system practices on weeds in arable farmlands in University of Port Harcourt and environs, Rivers State-Nigeria

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