Rentabilidade do rabanete adubado com flor-de-seda em duas épocas de cultivo no semiárido de Pernambuco

Silva, Antonia Francilene Alves da; Souza, Ênio Gomes Flôr; Santos, Manoel Galdino dos; Júnior, Aurélio Paes Barros; Neto, Francisco Bezerra; Silveira, Lindomar María da

doi:10.4322/rca.1761

Cited by 12 publications

(16 citation statements)

References 7 publications

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“…The methodology to obtain TC it was found in Silva et al (2015), where the total costs of the production were calculated at the end of the production process, based on the total expenditures per hectare of the cultivated area, which cover the services provided by the stable capital, that is, the working capital contribution and the alternative costs value.…”

Section: Methodsmentioning

confidence: 99%

“…In the intercropped system, the ideal population of crops is related to the soil's ability to provide nutrients and the ability of each crop to compete for water, light, and nutrients (ZANINE; SANTOS, 2004). However, it is necessary to consider the mutual benefits to species when composing the system and to use an adequate design for the crop arrangement with respect to the density and spacing of each component crop (ALTIERI;SILVA;NICHOLLS, 2003). Therefore, the competition depends on the population, arrangement of the plants, environmental and soil conditions, and interactions between the intercropped crops.…”

Section: Introductionmentioning

confidence: 99%

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Productive Performance of Carrot and Cowpea Intercropping System Under Different Spatial Arrangements and Population Densities

et al. 2018

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Spatial arrangement and population density of component cultures, when well structured, may contribute to increased crop yields relative to monocultures. Thus, the objective of this work was to evaluate the productive performance of carrot and cowpea in an intercropping system under different spatial arrangements and population densities. This research was conducted on the “Rafael Fernandes” experimental farm of the Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, RN, Brazil. The experimental design was a randomized complete block with four replicates, where the treatments were arranged in a 3 × 4 factorial scheme, in which the first factor was three spatial arrangements (2:2, 3:3, and 4:4) and the second factor was four different population densities of cowpea (100%, 80%, 60%, and 40% of the recommended population in the single crop [RPSC]). Rooster tree Calotropis procera (Ait.) R.Br., a spontaneous species of the „Caatinga‟ biome, was used as fertilizer. The characteristics evaluated in carrot were as follows: total and commercial productivity of roots and classified root production. The following characteristics were evaluated for cowpea: number of pods per square meter, length and yield of green pods, number of grains per pod, 100grain weight, and yield of green grains. The modified monetary advantage was used to evaluate the feasibility of the intercropped systems. Spatial arrangements between the component cultures did not influence the agroeconomic performance of the carrot-cowpea intercropping system. The highest agro-economic performance of the carrot-cowpea intercropping was obtained in the population of cowpea, which was 42% of the RPSC.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Productive Performance of Carrot and Cowpea Intercropping System Under Different Spatial Arrangements and Population Densities

et al. 2018

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“…A metodologia para a sua obtenção foi aquela utilizada por Silva et al (2015), em que os custos totais de produção foram calculados no final do processo produtivo baseado nos gastos totais por hectare de área cultivada, os quais abrangem os serviços prestados pelo capital estável, ou seja, a contribuição do capital circulante e o valor dos custos alternativos ou de oportunidades.…”

Section: Methodsunclassified

Viabilidade Agronômica De Policultivos De Rúcula/Cenoura/Alface Sob Quantidades De Flor-De-Seda E Densidades Populacionais

et al. 2015

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RESUMO -Este trabalho teve como objetivo estudar a viabilidade agronômica do bicultivo de rúcula (R) e alface consorciado (A) com cenoura (C) sob diferentes quantidades de flor-de-seda incorporadas ao solo e de proporções de densidades populacionais entre as culturas componentes no semiárido do Estado do Rio Grande do Norte. O delineamento experimental foi de blocos completos casualizados com quatro repetições, com os tratamentos arranjados em esquema fatorial 4 x 4. O primeiro fator foi constituído pelas quantidades de flor-de-seda incorporadas ao solo (10, 25, 40 e 55 t ha -1 em base seca) e o segundo fator pelas proporções de densidades populacionais das culturas componentes em policultivo [(50R-50C-50A (%); 40R-50C-40A (%); 30R-50C-30A (%) e 20R-50C-20A (%) das populações recomendadas em cultivos solteiro -PRCS)]. As folhosas foram plantadas em dois cultivos no ciclo da cenoura e uma análise conjunta foi realizada envolvendo os dois cultivos da rúcula e da alface e o fatorial 4 x 4. As características avaliadas foram: rendimento de massa verde (rúcula); massa seca da parte aérea e produtividade (alface); produtividade total; comercial; e classificada de raízes de cenoura. A vantagem monetária corrigida foi usada para avaliar a viabilidade agronômica dos sistemas consorciados. O uso da flor-de-seda como adubo verde se mostrou viável no policultivo de rúcula, cenoura e alface. O melhor desempenho agronômico do policultivo de rúcula, cenoura e alface foi registrado na quantidade de 55 t ha -1 de flor-de-seda incorporada ao solo. As proporções de densidades populacionais de rúcula, cenoura e alface de 50-50-50 (%) das PRCS foram as que proporcionaram a maior viabilidade agronômica dos policultivos. Palavras-chave: Associação de culturas. Eruca sativa. Daucus carota. Lactuca sativa. Calotropis procera. AGRONOMIC FEASIBILITY OF POLYCULTURES OF ARUGULA/CARROT/LETTUCE UNDER AMOUNTS OF ROOSTERTREE AND POPULATION DENSITIESABSTRACT -This work aimed to study the agronomic feasibility of the arugula (A) and lettuce (L) bicropping intercropped with carrot (C) under different amounts of roostertree incorporated into the soil and proportions of population densities among component crops in semiarid conditions of the Rio Grande do Norte state. The experimental design was randomized complete block with four replications, with the treatments arranged in a factorial 4 x 4. The first factor was constituted by the amounts of roostertree incorporated into the soil (10, 25, 40 and 55 t ha -1 on a dry basis) and the second factor by the proportions of population densities of the component crops in polyculture [(50A-50C-50L (%); 40A-50C-40L (%); 30A-50C-30L (%) and 20A-50C-20L (%) of the recommended populations in sole crops -RPSC)]. The leafy vegetable crops were planted in two cultivations during the carrot cycle, and a joint analysis was carried out involving the two cultivations in the 4 x 4 factorial scheme. The characteristics evaluated were green mass yield (arugula), dry mass of shoots and productivity (lettuce), total, comme...

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“…Net return (R$ ha -1 ) of lettuce fertilized with Calotropis procera as a function of the interaction of the amounts and the incorporation times of the green manure (A. primavera; B. fall-winter), within each growing season, and reverse unfolding (C. spring, D. fall-winter). Silva et al (2015), working with green fertilization with C. procera on radish cultivation, observed results similar to the present research, in which there was an increasing behavior of net return as a function of the biomass amounts of C. procera, reaching the maximum values of R$ 34,845.85 ha -1 (spring-summer) and R$ 35,330.49 ha -1 (fall-winter) at a dose of 15.6 t ha -1 . On the other hand, Oliveira et al (2015) obtained a higher net return of R$ 30,091.04 ha -1 when they fertilized arugula plants with 70.0 t ha -1 of C. procera, in a low soil fertility condition in the experimental area.…”

Section: Analysis Of Variance (Joint Analysis)mentioning

confidence: 99%

“…Some previous studies found net profit margins close to the present research. Studying green manure with C. procera on the cultivation of beetroot (BATISTA, 2011), radish (SILVA et al, 2015) and arugula (SOUZA et al, 2015;OLIVEIRA et al, 2015), and with Merremia aegyptia L. (scarlet starglory) in carrot culture (OLIVEIRA et al, 2012;BEZERRA NETO et al, 2014), the researchers demonstrated the agro-economic feasibility of green manure with spontaneous of the Caatinga species in leafy and root crops.…”

Section: Analysis Of Individual Variancementioning

confidence: 99%

ECONOMIC EVALUATION OF LETTUCE FERTILIZED WITH BIOMASS OF Calotropis procera IN TWO GROWING SEASONS

et al. 2019

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Vegetable production is an impactful activity, characterized by intensive land use, high input demand, and it requires strategic management adoption, especially in sustainable production systems, where the pillars of sustainability (environmental, social and economic) must be respected. In this sense, the objective of this work was to evaluate economic indicators of lettuce production using Caatinga spontaneous species (Calotropis procera: rooster tree) as fertilizer and cultivated in two seasons (spring and fall-winter) in the municipality of Serra Talhada, PE. The experimental design was in randomized blocks, arranged in a 4 x 4 factorial scheme, with three replications. The first factor was the biomass amounts of green manure (5.4, 8.8, 12.2 and 15.6 t ha-1 on a dry basis); and the second was their incorporation times in the soil (0, 10, 20 and 30 days before lettuce transplanting). The green mass yield, production costs, rate of return, and net profit margin were determined. The amount 15.6 t ha-1 of C. procera allowed higher profitability to the organic production of lettuce, and it is considered ideal to incorporate the green manure 11 (spring) and 15 (fall-winter) days before transplanting the vegetable. The spring crop promoted a superior economic return to the fall-winter planting, demonstrating economic viability even in the smallest amount of C. procera.

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Rentabilidade do rabanete adubado com flor-de-seda em duas épocas de cultivo no semiárido de Pernambuco

Cited by 12 publications

References 7 publications

Productive Performance of Carrot and Cowpea Intercropping System Under Different Spatial Arrangements and Population Densities

Productive Performance of Carrot and Cowpea Intercropping System Under Different Spatial Arrangements and Population Densities

Viabilidade Agronômica De Policultivos De Rúcula/Cenoura/Alface Sob Quantidades De Flor-De-Seda E Densidades Populacionais

ECONOMIC EVALUATION OF LETTUCE FERTILIZED WITH BIOMASS OF Calotropis procera IN TWO GROWING SEASONS

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