Efeitos da solarização do solo através de plástico transparente sobre o desenvolvimento da tiririca (Cyperus rotundus)

Kuva, M. A.; Alves, Paulo Roberto Arruda; Erasmo, Eduardo Lemus Andrea

doi:10.1590/s0100-83581995000100005

Cited by 8 publications

(5 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The effect of solarization on dry matter accumulation and density of the perennial Cyperus spp. confirms previous reports (Kuva et al, 1995). Under tropical conditions, Kumar et al (1993) also observed that solarization may reduce population of C. rotundus when emerged from seeds, but not when their flushes had been emerged from tubers.…”

Section: Resultssupporting

confidence: 88%

Soil solarization for weed control in carrot

Marenco

Lustosa

2000

Pesq. agropec. bras.

View full text Add to dashboard Cite

-Soil solarization is a technique used for weed and plant disease control in regions with high levels of solar radiation. The effect of solarization (0, 3, 6, and 9 weeks) upon weed populations, carrot (Daucus carota L. cv. Brasília) yield and nematode infestation in carrot roots was studied in São Luís (2 o 35' S; 44 o 10' W), MA, Brazil, using transparent polyethylene films (100 and 150 µm of thickness). The maximum temperature at 5 cm of depth was about 10 o C warmer in solarized soil than in control plots. In the study 20 weed types were recorded. Solarization reduced weed biomass and density in about 50% of weed species, including Cyperus spp., Chamaecrista nictans var. paraguariensis (Chod & Hassl.) Irwin & Barneby, Marsypianthes chamaedrys (Vahl) O. Kuntze, Mitracarpus sp., Mollugo verticillata L., Sebastiania corniculata M. Arg., and Spigelia anthelmia L. Approximately 40% of species in the weed flora were not affected by soil mulching. Furthermore, seed germination of Commelina benghalensis L. was increased by soil solarization. Marketable yield of carrots was greater in solarized soil than in the unsolarized one. It was concluded that solarization for nine weeks increases carrot yield and is effective for controlling more than half of the weed species recorded. Mulching was not effective for controlling root-knot nematodes in carrot.Index terms: Commelina benghalensis, Cyperus, organic farming, soil heating, mulching, plastic film covers, soil desinfection, nematode controls, sandy soil. SOLARIZAÇÃO DO SOLO PARA O CONTROLE DE PLANTAS DANINHAS NA CULTURA DE CENOURARESUMO -A solarização é uma técnica usada para o controle de plantas daninhas e doenças de plantas em regiões de alta radiação solar. Estudou-se o efeito da solarização (por 0, 3, 6 e 9 semanas) sobre a população de plantas daninhas, a produção de cenoura (Daucus carota L. cv. Brasília) e a infestação das raízes por nematóides. O experimento foi realizado em São Luís, MA, utilizando filmes de plástico com espessuras de 100 e 150 µm. A temperatura máxima a 5 cm de profundidade foi cerca de 10 o C maior nas parcelas solarizadas do que nas testemunhas. Havia 20 tipos de ervas daninhas no experimento. A solarização reduziu a biomassa e densidade das plantas daninhas em 50% das espécies, incluindo Cyperus spp., Chamaecrista nictans var. paraguariensis (Chod & Hassl.) Irwin & Barneby, Marsypianthes chamaedrys (Vahl) O. Kuntze, Mitracarpus sp., Mollugo verticillata L., Sebastiania corniculata M. Arg. e Spigelia anthelmia L. No entanto, foi ineficaz para o controle de 40% das espé-cies vegetais presentes no campo. Além disso, a solarização estimulou a germinação das sementes de Commelina benghalensis L. O rendimento comercial da cenoura foi maior nas parcelas solarizadas do que naquelas não cobertas. Conclui-se que a solarização por nove semanas aumenta o rendimento da cenoura e foi eficiente para o controle de mais da metade das espécies de plantas daninhas no campo. Porém, a cobertura de plástico foi ineficiente para o controle de nematóide...

show abstract

Section: Resultssupporting

confidence: 88%

Soil solarization for weed control in carrot

Marenco

Lustosa

2000

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…Contudo, observações a seu respeito são fundamentais, pois essa espécie apresenta-se com muita agressividade nas lavouras e é de difícil controle (KISSMANN & GROTH, 1997). Porém, o desenvolvimento da tiririca é afetado pelo sombreamento do solo, onde, nessa condição, é retardado o desenvolvimento normal das plantas (KUVA et al, 1995).…”

Section: Resultsunclassified

Manejo Da Palha De Aveia Preta Sobre as Plantas Daninhas E Rendimento De Soja Em Semeadura Direta

Bortoluzzi¹,

Eltz

2001

Cienc. Rural

View full text Add to dashboard Cite

A aveia preta é cultivada durante o inverno numa expressiva área do Rio Grande do Os tipos de manejos da palha de aveia preta não afetaram a altura de inserção do primeiro legume nem a umidade dos grãos na colheita. Os manejos da palha de aveia preta não alteraram a densidade de plantas daninhas, mas a presença de palha exerceu efeitos supressivos sobre as mesmas, reduzindo a massa seca de papuã por unidade de área e do número de plantas daninhas, com exceção do manejo palha gradeada. Palavras-chave: palhada, biomassa de invasoras, herbicidas. SUMMARY

show abstract

“…They used transparent polyethylene films to increase soil temperature to values as high as 42.5 C at .015 m depth. Kuva et al 37 have used transparent plastic films for controlling tiririca, or cocograss (Cyperus rotundus) by reaching an average soil temperature of 38.6 C at 0.10 m depth. They showed that plastic film coverage reduced infestation.…”

Section: Evaluatedmentioning

confidence: 99%

Mulch films based on poly(butylene adipate-co-terephthalate)/carnauba wax/sugar cane residue: Effects on soil temperature and moisture

Oliveira

Mousinho

Barbosa

et al. 2021

Journal of Composite Materials

View full text Add to dashboard Cite

Polymers were introduced in agriculture in the 1950s and, nowadays, mulching is one of major applications of plastics in this sector. In the last decades, difficulties in recovery of non-degradable plastic films have prompted the intense use of biodegradable mulch films. Therefore, the aim of this work was to develop mulch films based on a biodegradable polymer (poly(butylene adipate-co-terephthalate)), sugarcane and carnauba wax. Mulch films containing 2.5 and 5.0% of sugarcane residue, with and without 2% w/w carnauba wax were prepared by flat extrusion. To evaluate the performance of mulch films during application to the soil, they were maintained for 60 days under real conditions of use. During this period, the temperature and humidity of the soil protected by mulch were measured. In addition, the chemical, physical and morphological properties of the films, after weathering, were determined. Results show that the mulch films developed have promising properties. When larger moisture retention is needed, PBAT mulch films containing 2.5% and 5.0% sugarcane residue are the most indicated and, when higher temperatures are demanded, PBAT mulch films containing carnauba wax and 2.5% and 5.0% residue are the best option. After being exposed to high temperatures and moisture, the mulch films photo degraded and their transmittance was reduced. Besides, the sugarcane residue added to the polymer swelled, which led to breakage of the polymeric matrix.

show abstract

Efeitos da solarização do solo através de plástico transparente sobre o desenvolvimento da tiririca (Cyperus rotundus)

Cited by 8 publications

References 11 publications

Soil solarization for weed control in carrot

Soil solarization for weed control in carrot

Manejo Da Palha De Aveia Preta Sobre as Plantas Daninhas E Rendimento De Soja Em Semeadura Direta

Mulch films based on poly(butylene adipate-co-terephthalate)/carnauba wax/sugar cane residue: Effects on soil temperature and moisture

Contact Info

Product

Resources

About