Temperature and humidity of soil covered with perennial herbaceous legumes in the semiarid region of Minas Gerais, Brazil

Silva, Diego Mathias Natal da; Oliveira, Fábio Luiz de; Teodoro, Ricardo Borges; Fávero, Claudenir; Quaresma, Mateus Augusto Lima

doi:10.14393/bj-v32n1a2016-26241

Cited by 7 publications

(7 citation statements)

References 10 publications

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“…These results are in agreement with those reported by Silva et al (2016), who studied the effect of soil cover with calopo and kudzu on temperature and soil moisture in the semiarid region of Jequitinhonha Valley and reported a significant positive correlation of soil cover and soil moisture. Mohammed (2013), reported that cover crops significantly increase water infiltration inside the soil, and hence, facilitate root penetration, conserve soil moisture, and reduce evaporative losses.…”

Section: Resultssupporting

confidence: 93%

Leguminous Cover Crops for Banana Plantations in Semi-Arid Regions

2017

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-High temperatures and low rainfall characterize the Brazilian semiarid regions. This regional climate demands the adoption of practices that increase the efficiency and sustainability of local farming. This study aimed to assess the ability of two perennial herbaceous leguminous species, calopo and tropical kudzu, to provide permanent soil cover in banana plantations in Jequitinhonha Valley, northeast Minas Gerais state, Brazil. To this end, we evaluated the differences of calopo and tropical kudzu in soil cover capacity and the amount of senescent phytomass deposited on the soil surface, nutrient content in senescent phytomass, as well as their effects on temperature and soil moisture, compared with bare soil in two experimental sites. The results showed that, compared with tropical kudzu, calopo had a higher soil cover capacity and was more effective at increasing organic material and nutrients in the soil owing to the relatively higher amount of senescent phytomass deposited on the soil surface. However, both calopo and tropical kudzu reduced soil temperature and increase soil moisture compared with bare soil. Overall, we concluded that these species can deposit high levels of senescence in the soil, providing several benefits to the cultivation system of banana plants in the semiarid regions. Keywords

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Section: Resultssupporting

confidence: 93%

Leguminous Cover Crops for Banana Plantations in Semi-Arid Regions

2017

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“…The incidence of B. subalternans in Brazilian agricultural areas increased from 1996 when biotypes resistant to acetolactate synthase (ALS) inhibiting herbicides group were identified in South America [4]. Currently, this species is observed in all Brazilian regions, even in semi-arid, which suggests the excellent adaptation of this species to different environmental conditions [5].…”

Section: Introductionmentioning

confidence: 99%

Seed germination of Bidens subalternans DC. exposed to different environmental factors

et al. 2020

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Bidens subalternans DC. is a weed found in several tropical countries such as Brazil. Large number of produced seeds and easy dispersion favor the colonization of agricultural fields by this species. To know the factors that affect the germination of B. subalternans can help to understand its ecology, permitting to develop control strategies. Laboratory experiments were carried out to evaluate how the temperature, photoperiod, burial depth, water deficit, and salt stress affect the seed germination of B. subalternans. The means of the treatments of each experiment were shown in scatter plots with the bars indicating the least significant difference (LSD, p�0.05). The results showed a germination percentage above 77% for a wide alternating temperature (15/20 C to 30/35 C night/day). The highest germination and uniformity occurred at 25/30˚C night/day. Only 11% of the seeds germinated at a temperature of 35/40˚C night/day. The deeper burial of seeds reduced their germination. Only 17% of the seeds germinated in darkness conditions. However, in constant light and 12 hours of light/dark conditions the germination percentage was over 96%, confirming the light dependence of the B. subalternans during germination. In constant light and 12 hours of light/dark, the germination was over 96%. B. subalternans seeds showed sensitivity to water and salt stress, and their germination was inhibited under a water potential of-0.4 MPa and 100.09 mM, respectively. The sensitivity of B. subalternans seeds to high temperatures, water stress, and salt stress explains the high frequency of this weed in south-central Brazil. The light and sowing depth showed that burial of seeds by mechanical control is a strategy to reduce the high infestation of B. subalternans.

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“…Outro efeito que pode ter contribuído para melhores condições para as espécies arbóreas é a maior umidade do solo, que pode ser proporcionada pela cobertura do solo pelas leguminosas em consórcio. Silva et al (2016) observaram que a cobertura das espécies herbáceas e a deposição de folhas senescentes aumentam a proteção do solo contra a luz solar direta, aliviando as temperaturas e diminuindo a amplitude térmica, o que implica na menor evapotranspiração e maior umidade do solo. É possível que após a roçada da crotalária, colheita do feijão-de-porco e poda do feijão-guandu tenham ocorrido esses benefícios, contribuindo para o maior crescimento das espécies arbóreas consorciadas.…”

Section: Resultsunclassified

“…Sci., Cuiabá, v.6, n.2, p.589-593, 2019 Dayo-Olagbende 2017). Também contribuem diretamente para a diminuição da temperatura e manutenção da umidade do solo (Silva et al 2016).…”

Section: Introductionunclassified

Consórcio de espécies arbóreas com leguminosas herbáceas como estratégia para restauração florestal

Santos¹,

Leles²,

Santana³

et al. 2019

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Resumo Objetivou-se avaliar o consórcio de espécies arbóreas com leguminosas herbáceas como estratégia de controle de gramíneas em área de restauração florestal. Utilizou-se duas estratégias: tratamento mecânico, que consistiu de capinas em faixas de 1,2 m de largura nas linhas de plantio e roçadas nas entrelinhas de plantio, sempre que a vegetação infestante atingiu 35 cm de parte aérea, e o tratamento cultural, em que foi realizada uma capina em área total e em seguida a semeadura de leguminosas herbáceas nas entrelinhas das espécies arbóreas. Avaliou-se o crescimento em altura aos 6, 12, 18, 24 e 30 meses após o plantio, o diâmetro ao nível do solo e cobertura do solo pelas copas aos 30 meses de 10 espécies arbóreas. Também se quantificou a massa de matéria seca de gramíneas aos 25 meses após plantio das plantas arbóreas. Em todas as épocas de avaliação, em média, as dez espécies arbóreas obtiveram crescimento em altura significativamente superior no tratamento em que houve o consórcio com leguminosas (Cultural), mesmo comportamento observado para diâmetro ao nível do solo e cobertura de copa aos 30 meses. Na unidade do tratamento mecânico a infestação de gramíneas, aos 25 meses após o plantio, foi cerca de 3,5 vezes maior ao observado no tratamento Cultural. Conclui-se que o consórcio com leguminosas herbáceas facilitou o crescimento das espécies arbóreas no período avaliado, por promover sombreamento do solo, dificultando o crescimento das plantas espontâneas. Palavras-chave: Controle de plantas espontâneas; adubação verde e recuperação da M ata Atlântica.

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Temperature and humidity of soil covered with perennial herbaceous legumes in the semiarid region of Minas Gerais, Brazil

Cited by 7 publications

References 10 publications

Leguminous Cover Crops for Banana Plantations in Semi-Arid Regions

Leguminous Cover Crops for Banana Plantations in Semi-Arid Regions

Seed germination of Bidens subalternans DC. exposed to different environmental factors

Consórcio de espécies arbóreas com leguminosas herbáceas como estratégia para restauração florestal

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