Effects of irrigation and straw mulch on water use and tuber yield of potato in eastern India

Kar, Gouranga; Kumar, Ashwani

doi:10.1016/j.agwat.2007.08.004

Cited by 150 publications

(93 citation statements)

References 12 publications

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“…Os benefícios da cobertura do solo seja com material orgânico ou sintético para o cultivo de alface tem sido relatado por vários autores (ANDRADE JR. et al, 2005;MOURA FILHO et al, 2009;TOSTA et al, 2010;BLIND;SILVA FILHO, 2015) e, também, em outras culturas como pimentão (QUEIROGA et al, 2002), alho (JAMIL et al, 2005, cenoura (RESENDE et al, 2005), tomate (GRASSBAUGH et al, 2004;RAHMAN et al, 2006), batata (KAR;KUMAR, 2007) e melão (JOHNSON et al, 2004;BLIND;SILVA FILHO, 2015), com elevação de rendimento.…”

Section: Introductionunclassified

Crescimento e produtividade de alface sob diferentes tipos de cobertura do solo

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Souza

et al. 2016

AGRO@MBIENTE ON-LINE

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Resumo:No Brasil, a alface é a principal hortaliça produzida e comercializada, carecendo, contudo, de tecnologias para otimizar a produção e garantir a sustentabilidade ambiental em áreas agrícolas. Objetivou-se com este trabalho verificar o efeito de diferentes coberturas do solo no crescimento, produtividade de plantas de alface e na temperatura do solo. O delineamento experimental utilizado foi em blocos casualizados, com seis tratamentos e cinco repetições. Os tratamentos estudados consistiram de tipos de cobertura do solo, sendo: cobertura com material vegetal (CVe), polietileno preto (0,020 mm) (PPt), polietileno prata (0,020 mm) (PPr), polietileno branco (0,020 mm) (PBr), polietileno transparente (0,100 mm) (PTr) e solo sem cobertura (Testemunha -T). As variáveis analisadas foram: massa fresca total, número e massa fresca de folhas comerciais, massa fresca de raiz, diâmetro da cabeça e produtividade. Foi realizado o monitoramento da temperatura do solo durante toda condução da cultura. As coberturas com polietilenos prata, branco e preto foram estatisticamente iguais e superiores às demais coberturas para todas as características agronômicas avaliadas na alface. A temperatura do solo foi influenciada pelos tipos de cobertura. Em relação ao solo descoberto, a temperatura do solo aumentou nos tratamentos com coberturas plásticas, e diminuiu no tratamento com cobertura vegetal morta. Palavras-chave: Lactuca sativa L.. Mulching. Temperatura do solo.Abstract: In Brazil, the lettuce is the main vegetable produced and marketed, however, the crop is deficient in technology to optimize production and to ensure environmental sustainability in agricultural areas. This study aimed to verify the effect of different soil covering on soil temperature, and lettuce growth and yield. The experiment was settled adopting a randomized block design with six treatments consisted by different types of soil covering: cover with organic matter (CVe), black polyethylene (0.020 mm) (PPt), silver polyethylene (0.020 mm) (PPr), white polyethylene (0.020 mm) (PBr), transparent polyethylene (0.100 mm) (PTr) and bare soil (control -T); and with five repetitions per each treatment. The variables analyzed were: total fresh weight, number and fresh weight of commercial leaves, root fresh weight, lettuce head diameter and yield. The soil temperature was monitored during the crop growth. The silver, white and black polyethylene coverings showed similar results. However, they were superior for all the evaluated characteristics compared to other coverings. The soil temperature was influenced by the different types of covering. There was increases of soil temperature for all the plastic coverings. However, the organic material reduced the soil temperature in comparison to the control treatment.

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Section: Introductionunclassified

Crescimento e produtividade de alface sob diferentes tipos de cobertura do solo

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et al. 2016

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“…Mulching techniques have emerged in recent years to address these soil constraints yielding positive results in a variety of scenarios. An early study by Kumar et al (1985) and other more recent studies (Kar & Kumar, 2007;Mubarak et al, 2009;Okonkwo et al, 2011;García-Moreno, 2013;López et al, 2014;Zribi et al, 2015) reported the positive effects of mulches and organic amendments on soil physical properties, such as increased water retention and decreased soil evaporation.…”

Section: Measurementsmentioning

confidence: 99%

Use of organic mulch to enhance water-use efficiency and peach production under limiting soil conditions in a three-year-old orchard

Lordan

Pascual

Mir

et al. 2015

Span. j. agric. res.

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Mulching techniques have emerged in recent years to overcome soil constraints and improve fruit tree productivity. The object of this study was to evaluate the effects of a low-cost organic mulch application in a newly planted peach orchard under a ridge planting system. Three treatments were performed in 12 elementary plots using a randomized complete block design. The orchard was drip-irrigated. Mulch was applied in two treatments, which differed in fertigation (none vs. multi-nutrient fertigation), while the third treatment did not include either mulch or fertigation and served as the control. Treatments were compared in terms of their effects on the physical properties of the soil, crop response, and water-use efficiency. Mulch treatments did not alter the soil bulk density. However, the mulch significantly (p=0.0004) increased the water infiltration rate (2.21 mm/h vs. 121 mm/h), which is a key issue when working in high frequency irrigation systems under soil limiting conditions. Similarly, mulched treatments showed a more favorable water status both in the second and the third year, which was translated in a better crop response. Thus, mulched treatments recorded higher yields both in the second (+155%, p=0.0005) and the third year (+53%, p=0.0007) of the experiment. Water use efficiency (WUE agr ) was higher in the mulch treatments (+50% in average, p=0.0007) than in the control in the third year of the study. On the basis of our results, we propose that organic-mulching techniques should be considered as a beneficial practice to apply in fruit-trees production under limiting soil conditions. Additional key words: Prunus persica; compost; irrigation water use efficiency; limiting soil, salinity.

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“…They reduce soil wind and water erosion, conserve soil moisture and help maintain stable soil temperature (Kar and Kumar 2007). Mulch increases soil porosity and suppresses weed growth (Uwah and Iwo 2011).…”

Section: Introductionmentioning

confidence: 99%