Crescimento vegetativo e produtividade do cafeeiro irrigado no sul do Estado de Minas Gerais

Gomes, Natalino Martins; Lima, Luiz Antonio; Paiva, Anselmo Cardoso de

doi:10.1590/s1415-43662007000600003

Cited by 24 publications

(21 citation statements)

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“…Para evitar perdas e potencializar o ganho produtivo, a irrigação por gotejamento, muitas vezes associada à fertirrigação, tem sido adotada de forma expressiva pelos cafeicultores, inclusive em regiões como o sul de Minas, onde pesquisadores ainda discutem sua viabilidade 2008a;Gomes et al, 2007).…”

Section: Introductionunclassified

“…Comparada ao sistema convencional de adubação, a fertirrigação possibilita aumentar a produtividade e melhorar a qualidade dos frutos do cafeeiro, reduz custos com mão de obra na adubação e aumenta a eficiência no manejo do solo Gomes et al, 2007;Carvalho et al, 2010;Pereira et al, 2010). Contudo, os benefícios da técnica são limitados em razão da escassez de informações científicas específicas para o cafeeiro, sobretudo quanto a doses e número de parcelamentos necessários no ano.…”

Section: Introductionunclassified

“…Contudo, os benefícios da técnica são limitados em razão da escassez de informações científicas específicas para o cafeeiro, sobretudo quanto a doses e número de parcelamentos necessários no ano. A fertirrigação na cafeicultura vem sendo discutida com base em trabalhos relacionados à irrigação (Silva et al, , 2008bGomes et al, 2007), à adubação líquida (Fagundes, 2006) e à fertirrigação (Karasawa et al, 2002;Nazareno et al, 2003;Costa, 2005;Rezende et al, 2010).…”

Section: Introductionunclassified

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Adubação nitrogenada e potássica de cafeeiro fertirrigado na fase de formação, em plantio adensado

Sobreira

Guimarães

Colombo³

et al. 2011

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi determinar o parcelamento e a dose de nitrogênio e potássio mais adequados para o primeiro e segundo anos de formação do cafeeiro (Coffea arabica) fertirrigado por gotejamento, no sul de Minas Gerais. Dois experimentos foram instalados simultaneamente com plantio adensado (6.666 plantas ha -1 ): em um, a adubação foi realizada em quatro aplicações ao ano e, no outro, em 12 aplicações. Utilizou-se o delineamento em blocos ao acaso com cinco tratamentos e quatro repetições em ambos os experimentos. Os tratamentos foram constituídos por doses, aplicadas via fertirrigação, equivalentes a 70, 100, 130, 160 e 190% da recomendada para N e K 2 O, para o cultivo em sequeiro. Foi realizado tratamento controle com cultivo em sequeiro e adubação com a dose padrão: 100% da recomendada. No primeiro e segundo anos, em ambos os tipos de parcelamento, não houve diferença significativa entre as doses, quanto ao crescimento do cafeeiro. O parcelamento em 12 aplicações é mais adequado para adubação de primeiro e segundo anos pós-plantio. Cafeeiros em formação fertirrigados por gotejamento apresentam maior crescimento e menor demanda por adubação com N e K do que os cultivados em sequeiro.Termos para indexação: Coffea arabica, demanda nutricional, irrigação por gotejamento, parcelamento da adubação, sequeiro. Nitrogen and potassium fertigation in coffee at the formation phase, with high plant densityAbstract -The objective of this study was to evaluate the most adequate parceling and dose of nitrogen and potassium for the first and second years of coffee shrub (Coffea arabica) formation, under a drip fertigation system, in southern Minas Gerais, Brazil. Two experiments with high plant density (6.666 plants ha -1 ) were carried out simultaneously: in one of them, the fertilization was done in 4 applications yearly, and in the other one, in 12 applications. A randomized block design was used with five treatments and four replicates in both experiments. Treatments consisted of N and K 2 O doses applied via fertigation: 70, 100, 130, 160 and 190% from the N and K 2 O recommended doses for the rainfed cropping. A control treatment was carried out in rainfed conditions and fertilized with the standard dose (100%). In the first and second years, in both parceling types, there were no significant differences among doses regarding coffee shrub vegetative growth. Parceling into 12 applications is more suitable for fertilization at both first and second years after planting. Fertigated coffee shrubs at the formation phase have higher growth and demand less nitrogen and potassium fertilization than the ones in rainfed conditions.

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Section: Introductionunclassified

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Adubação nitrogenada e potássica de cafeeiro fertirrigado na fase de formação, em plantio adensado

Sobreira

Guimarães

Colombo³

et al. 2011

Pesq. agropec. bras.

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“…They also observed that compared to other years, the lower intensity of water deficit, may have contributed to high productivity of non-irrigated plants, equating this to the irrigated treatment. The studies conducted by these authors and others like SILVA et al (2002), SILVA et al (2003b, SILVA (2005) andGOMES et al (2007) have demonstrated that irrigation did not prevent the effect of biennial culture, but helped to reduce it since the results indicated that the fall in productivity in irrigated treatments was not as sharp as in non-irrigated treatment. However, SILVA et al (2008) andSIQUEIRA (2005) found that irrigation failed to attenuate the effects of biennial culture.…”

Section: Resultsmentioning

confidence: 93%

Irrigation management in pruned coffee tree crop

et al. 2013

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It was evaluated the effect of irrigation management on the production characteristics of coffee cultivar Acaiá MG-1474, planted in spacing of 3.00 m x 0.60 m, pruned in 2004, and irrigated by drip since the planting, in 1997. The experimental designed used was of randomized blocks with five treatments and four replications. The treatments consisted of irrigation management strategies, applying or not applying controlled moisture deficit in layer of 0 to 0.4m, in dry seasons of the year: A = no irrigation (control), B = irrigation during all year considering the factor of water availability in the soil (f) equal to 0.75, C = irrigation during all year considering f = 0.25, D = irrigation during all year, but in

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“…Studies on irrigation in coffee regions considered suitable for cultivation demonstrated that the use of this technique is justified, once irrigation ensures greater vigor to plants and eliminates risks arising from occasional droughts, increasing productivity GOMES et al, 2007;SATO et al, 2007;SILVA et al, 2008a;SILVA et al, 2008b). …”

Section: Introductionmentioning

confidence: 99%

Soil water potential during different phenological phases of coffee irrigated by center pivot

Evangelista

Lima²,

Silva³

et al. 2013

Eng. Agríc.

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Irrigation management can be established, considering the soil water potential, as the limiting factor for plant growth, assuming the soil water content between the field capacity and the permanent wilting point as available water for crops. Thus, the aim of this study was to establish the soil water potential interval during four different phenological phases of coffee irrigated by center pivot. The experiment was set at the experimental area of the Engineering Department at the Federal University of Lavras, in Brazil. The coffee variety planted is designated as Rubi, planted 0.8 meters apart, with rows spaced 3.5 meters apart. The treatments corresponded to the water depths applied based on different percentages of Kc and reference evapotranspiration (ET 0 ) values. Sensors were used to measure the soil water potential interval, installed 25 centimeters depth. In order to compare the results, it was considered as the best matric potential the one that was balanced with the soil water content that resulted in the largest coffee productivity. Based on the obtained results, we verified that in the phases of fruit expansion and ripening, the best results were obtained, before the irrigations, when the soil water potential values reached -35 and -38 kPa, respectively. And in the flowering, small green and fruit expansion phases, when the values reached -31 and -32 kPa, respectively.KEY WORDS: irrigated coffee, available water, Coffea arabica L. POTENCIAL DE ÁGUA NO SOLO EM DIFERENTES ESTÁDIOS FENOLÓGICOS

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Crescimento vegetativo e produtividade do cafeeiro irrigado no sul do Estado de Minas Gerais

Cited by 24 publications

References 0 publications

Adubação nitrogenada e potássica de cafeeiro fertirrigado na fase de formação, em plantio adensado

Adubação nitrogenada e potássica de cafeeiro fertirrigado na fase de formação, em plantio adensado

Irrigation management in pruned coffee tree crop

Soil water potential during different phenological phases of coffee irrigated by center pivot

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