Leguminosa no controle integrado de plantas daninhas para aumentar a produtividade da laranja-'Pêra'

Carvalho, J. E. B. de; Souza, Luciano da Silva; Caldas, R.C; ANTAS, PALLOMMA EMMANUELA U. T.; Araújo, Ana Maria De A.; Lopes, Lucy C.; SANTOS, ROSANE C. DOS; LOPES, NEIDE CONCEIÇÃO M.; Souza, André Leonardo V.

doi:10.1590/s0100-29452002000100018

Cited by 12 publications

(6 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Most plants aged 12 to 15 years have low productivity and fruit quality, without responding to the usual fertilization practices. These aspects, associated with the presence of a cohesive horizon and the occurrence of several periods of drought a year, on average five months of little rain, have accentuated water deficiency in plants, with a loss in crop productivity (Carvalho et al 2002). Teofilo Sobrinho et al (1992, working with the orange tree 'Valencia' grafted in densities of 278, 333, 416, 555 and 833 plants / ha, obtained in 18 years of harvest the highest productivity in the densest planting.…”

Section: Introductionmentioning

confidence: 99%

Fruit quality and nutritional analysis in ‘Pêra’ orange as affected by soil available water and different rootstocks

Silveira

Júnior

Souza

et al. 2021

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

The market of citrus fruits for fresh consumption is greatly influenced by the external aspect of the fruit, which needs to meet certain quality requirements. Therefore, this study aimed to evaluate fruit characteristics and leaf concentrations of nutrients, associating them with soil available water, for combinations of 'Pêra' orange with five different rootstocks, in two planting systems [conventional seedlings and direct seeding (DS) of rootstocks] in soil without subsoiling, in two sampling periods (wet and dry) of leaves and fruits. The attributes evaluated in the fruits were as follows: fruit length (FL), fruit diameter (FD) (cm), fruit weight (FW), juice yield, total soluble solids (TSS, in ºBrix), titratable acidity (TA, in g de citric acid mL −1 ), and ratio (TSS/TA). For nutritional evaluation of the plant, the contents of N, P, K, Ca, Mg, Fe, Cu, Mn, and Zn were determined in the leaves. The fruits produced in the rainy period showed better physical and chemical characteristics. Higher average ratios were found in 'Volkameriano' lemon, 'Índio' citrandarin and 'Cravo Santa Cruz' lemon. The planting system via DS led to higher values of FW, FD and FL. Leaf analysis indicated deficiency of N and Mn, excess of K and Fe; and P, Ca, Mg, Cu and Zn within the adequate range. The intensity of water stress, found in the dry period, increased the leaf concentrations of K, Ca, Mg and Cu. The preservation of the root system, promoted by DS, led to higher contents of N, Ca, Cu and Mn.

show abstract

Section: Introductionmentioning

confidence: 99%

Fruit quality and nutritional analysis in ‘Pêra’ orange as affected by soil available water and different rootstocks

Silveira

Júnior

Souza

et al. 2021

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Apparently, the sowing of the legume in the total area including the planting row reduced the earning potential maybe due to competition exerted by the legume, as aforementioned. In another study, Carvalho et al (2002) compared the management system used by the farmer (three manual weedings in the planting rows and three harrowings between the rows) with the management system that used jack bean as a plant cover between the rows of the 'Pêra' orange orchard and chemical weed control with glyphosate in the rows and concluded that the proposed management presented better results (above 57%) in relation to farmer's management for fruit mass, number of fruits per plant, and yield.…”

Section: Resultsmentioning

confidence: 90%

Integrated methods for weed control in the 'Natal' orange tree

Real¹,

Neto²,

Favaro³

et al. 2021

Científica

View full text Add to dashboard Cite

One of the main critical points in the production process of orange trees is the negative interference imposed by weeds. Considering the relevance of this factor, this study aims to evaluate integrated methods for weed control on the yield of orange (Citrus sinensis L.), cv. 'Natal'. A field experiment was carried out in a randomized block design with the following nine treatments: manual weeding of the area associated with maintenance with herbicide; herbicide application in the total area; herbicide application in the total area followed by sowing of jack bean (Canavalia ensiformis L.) between the rows; herbicide application in the total area followed by sowing of the legume in the total area; herbicide application between the rows only in the free space between canopies; herbicide application in the row; herbicide application in the canopy projection; herbicide application in the total area except for the canopy projection; besides a control treatment, without weeding. The herbicide used was glyphosate, always applied at a dose of 1,080 g ha -1 . Among the studied managements, it can be concluded that the manual weeding of the area associated with maintenance with glyphosate (1,080 g ha -1 ); glyphosate application in the total area; glyphosate application in the total area followed by sowing of jack bean between the rows; glyphosate application in the total area followed by sowing of jack beans in the total area; and glyphosate application in the canopy projection resulted in the same yield as the traditional management adopted by the farmer, which consists of glyphosate application in the row. On the other hand, glyphosate application in the total area except for the canopy projection and glyphosate application between the rows only in the free space between canopies were not good weed control methods, resulting in lower yield, whose value was similar to that of the control without weeding (in the bush).

show abstract

“…In plots with the lower-density configuration, the productivities of passion fruit, pineapple and jack-bean seed were 25,993 16,399 and 319 kg ha -1 , respectively, and these high productivities represented the determining factor for enhanced profitability. Previously, Carvalho et al, (2002) reported that the use of jack-bean as a cover crop gave rise to an increase in orange fruit productivity as a result of enhanced soil structure and higher accumulation of N, P, K, Ca, Mg and S.…”

Section: Resultsmentioning

confidence: 99%

Analise da viabilidade econômica de policultivo orgânico

et al. 2018

View full text Add to dashboard Cite

Abstract:The polyculture systems guarantees food to small farmers, would ensure sustainable agriculture, high productivity per unit area and lessen the natural risks of agriculture. Within this context the objective of this study was to evaluate the production cost and profitability of an organic polyculture system comprising passion fruit, maize, pineapple and cassava in association with the cover crops. This research was carried out at the Seridó Ecological Farm, in the Municipality of Rio Branco, Acre State, from 2009 to 2011, in the completely randomized block design in a split plot arrangement with three repetitions and comprised plots containing passion fruit supported by espaliers located 3 m or 4 m apart. Plots were divided into subplots containing the cover crops jack-bean, crotalaria, tropical kudzu, peanut forage or spontaneous plants (treatments), and maize. The pineapple and cassava were planted between the espaliers. The effects of different cover crops were not so evident in plots with 3 m-spaced espaliers (P < 0.05) which increased productivity and production cost, providing a lower cost benefit ratio. The organic polyculture of passion fruit with pineapple, maize and cass in plots with 4 m-spaced espaliers, with the soil covered by jack bean increased total and net revenue, cost benefit ratio and economic feasibility.Key Words: Passiflora edulis f. flavicarpa; Green manure; Economic indicators; Intercropping.Resumo: O policultivo garante alimentos para a agricultura familiar, contribui para a sustentabilidade no campo, aumenta a produtividade por unidade de área e reduz os riscos naturais da agricultura. Nesse contexto, o objetivo no presente estudo foi avaliar o custo de produção e a rentabilidade de um sistema de policultivo compreendendo maracujá, milho, abacaxi e mandioca em associação com as plantas de cobertura. Esta pesquisa foi realizada no Sítio Ecológico Seridó, no Município de Rio Branco, Acre, no período de 2009 a 2011, em delineamento de blocos completos casualizados em esquema de parcela subdividida com três repetições. As parcelas forma compostas por espaldeiras espaçadas 3 ou 4 m de distância. As parcelas foram divididas em subparcelas cobertas com os adubos verdes feijão-de-porco, crotalária, kudzu tropical, amendoim forrageiro ou plantas espontâneas (tratamentos) e o milho, o abacaxi e a mandioca foram plantados entre as espaldeiras. Não houve efeito das plantas de cobertura entre as espalderias distanciadas por 3 m (P<0,05), que aumentou a produtividade e o custo de produção proporcionando menor relação benefício custo. O policultivo orgânico de maracujazeiro com abacaxizeiro, milho e mandioca entre espalderias de 4 m, com o solo coberto por feijão de porco aumentou a receita total e líquida, a relação benefício custo e a eficiência econômica.

show abstract

Leguminosa no controle integrado de plantas daninhas para aumentar a produtividade da laranja-'Pêra'

Cited by 12 publications

References 2 publications

Fruit quality and nutritional analysis in ‘Pêra’ orange as affected by soil available water and different rootstocks

Fruit quality and nutritional analysis in ‘Pêra’ orange as affected by soil available water and different rootstocks

Integrated methods for weed control in the 'Natal' orange tree

Analise da viabilidade econômica de policultivo orgânico

Contact Info

Product

Resources

About