Sprinkler and drip irrigation in the organic tomato for single crops and when intercropped with coriander

Marouelli, W. A.; Lage, D. A. da C.; Gravina, Cristina Silveira; Filho, M. Michereff; Souza, Ronessa Bartolomeu de

doi:10.1590/s1806-66902013000400020

Cited by 9 publications

(10 citation statements)

References 16 publications

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“…This latter effect is most noticeable by the application of water by sprinkler irrigation, which can reduce the population when compared to other irrigation methods in experimental plots [46]. These findings were confirmed not only for whiteflies (Bemisia tabaci) [27,47] but also for Myzus persicae [48], each of which are important vectors of numerous plant viruses worldwide.…”

Section: Vectors Of Plant Viruses Have a Major Role On The Epidemics mentioning

confidence: 77%

“…Other oomycetes can be controlled by drip irrigation, as for Phytophthora infestans infecting greenhouse-grown tomatoes [27], or even in tomato field crops, planted in the dry season in the Brazilian Midwest (unpublished). P. infestans requires 2 to 6 h of leaf wetness (depending on temperature); nevertheless, high humidity levels inside the greenhouse (due evaporation) may favor disease development, stimulating spore germination [23,28].…”

Section: Oomycetesmentioning

confidence: 99%

“…Other examples of the irrigation effects over powdery mildew may be seen with Leveillula taurica in tomato, which displays a critical increase of incidence when the crop is drip-irrigated, due to the absence of free water on leaves [27]. On pumpkin, powdery mildew is progressively reduced with increasing water volumes applied by the conventional overhead sprinkler irrigation system [10].…”

Section: Dry Propagule Fungimentioning

confidence: 99%

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Management of Plant Disease Epidemics with Irrigation Practices

Filho¹,

Lopes²,

Rossato³

2019

Irrigation in Agroecosystems

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Adequate water provision to roots is essential to warrant sustainable harvests of agricultural crops globally. However, water applied in excess or in deficit may result in the development of many fungal and bacterial plant diseases, which compromise produce yield and quality. Leaf wetness duration, soil water tension and related water variables impact several aspects of different plant disease cycles, such as the sporulation, survival of pathogen propagules, their dispersal to new hosts, germination and infection. Irrigation is thus arguably the most important cultural practice in the management of plant diseases, especially in the context of the quest of a more sustainable, less chemically dependent agriculture. The technology of water application and method of irrigation have been profusely studied as to their direct relation to plant diseases. Irrigation management has a strong impact on the disease severity and epidemic progress rates of many plant pathosystems, ranging from leaf blights to vascular wilts. In addition, plant virus vector population levels and vector dispersal are also affected by the method of irrigation. This chapter reviews experimental data on the effect of different irrigation configurations and management systems on some representative plant diseases.

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Section: Vectors Of Plant Viruses Have a Major Role On The Epidemics mentioning

confidence: 77%

Section: Oomycetesmentioning

confidence: 99%

Section: Dry Propagule Fungimentioning

confidence: 99%

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Management of Plant Disease Epidemics with Irrigation Practices

Filho¹,

Lopes²,

Rossato³

2019

Irrigation in Agroecosystems

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“…No eixo transversal, foram tomadas amostras a cada 7 cm, até a distância de 28 cm do gotejador, enquanto, no eixo longitudinal, as amostras foram obtidas a cada 5 cm até 15 cm do gotejador. Segundo Marouelli et al (2013), entre 80 e 85% das raízes do tomateiro concentram-se nesse perfil de solo avaliado.…”

Section: Methodsunclassified

“…Como a irrigação por gotejamento concentra as raízes do tomateiro em um volume de solo muito menor do que a irrigação por aspersão (Marouelli et al, 2013), o gotejamento sem o uso da fertirrigação concorre para a redução da eficiência do sistema produtivo e pode não resultar em ganhos compensadores ao sistema de produção (Hebbar et al, 2004;Shedeed et al, 2009).…”

Section: Introductionunclassified

Frações ótimas da adubação com fósforo no pré-plantio e na fertirrigação por gotejamento de tomateiro

Marouelli

Guimarães

Braga

et al. 2015

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi estabelecer frações ótimas da dosagem total de fósforo, a serem aplicadas no pré-plantio e na fertirrigação do tomateiro de crescimento determinado, bem como determinar o efeito das diferentes formas de aplicação do nutriente sobre sua distribuição espacial no solo. Os tratamentos consistiram de cinco esquemas de aplicação do fertilizante: 100, 75, 50, 25 e 0% da dose total de P, dividida entre o pré-plantio (superfosfato triplo incorporado ao solo) e a fertirrigação (ácido fosfórico). O experimento foi realizado em Latossolo Vermelho argiloso com duas classes de disponibilidade de P -7,5 e 32,9 mg dm -3 (Mehlich-1). Os tratamentos não apresentaram efeito sobre as variáveis de produção do tomateiro cultivado no solo com alta disponibilidade de P. Entretanto, no solo com menor disponibilidade do nutriente, a fertirrigação com P apresentou efeito quadrático sobre a produtividade de frutos, a receita líquida e a taxa líquida de retorno. Os melhores resultados foram obtidos com a aplicação de metade da dose total de P pela fertirrigação. A fertirrigação possibilitou movimento vertical do nutriente no solo para até 30 cm de profundidade, e movimento horizontal de até 15 cm.Termos para indexação: Solanum lycopersicum, análise econômica, crescimento determinado, distribuição espacial no solo, parcelamento da adubação, tomate para processamento. Optimal fractions of phosphorus fertilizer applied in preplanting and in drip fertigation of tomato cropAbstract -The objective of this work was to establish the optimal fractions of the total amount of phosphorus to be applied in preplanting and in drip fertigation of determinate-growth tomato, as well as to determine the effect of the different forms of nutrient application on their soil spatial distribution. Treatments consisted of five schemes of fertilizer application: 100, 75, 50, 25, and 0% of P total dose divided between the pre-planting (triple superphosphate in band placement) and the fertigation (phosphoric acid). The experiment was carried out in a clayed Oxisol with two P availability classes -7.5 and 32.9 mg dm -3 (Mehlich-1). The treatments showed no effect on tomato production variables in the soil with high P availability. However, in the soil with smaller availability of the nutrient, P fertigation showed a quadratic effect on fruit yield, net income, and net rate of return. The best results were obtained with half of the P total dose applied by fertigation. The fertigation allowed P movement in the soil up to 30 cm deep, and horizontal movement up to 15 cm.

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