scholarly journals ANÁLISE ECONÔMICA DO PLANTIO DE CROTALÁRIA (Crotalariajuncea L.) PARA PRODUÇÃO DE SEMENTES EM ÁREAS DE REFORMA DA CANA-DE-AÇÚCAR

Author(s):  
Adriano BOSCOLO ◽  
Welton da Silva SOARES ◽  
Jaqueline Bonfim de CARVALHO ◽  
Camila Fernandes F. APARECIDO

A cultura da cana-de-açúcar possui destaque em cenário nacional, principalmente no Estado de São Paulo, sendo de grande utilização à prática de plantio de leguminosas para período de descanso nas áreas de cultivo da cultura. Diante da necessidade de alcançar maiores índices de produtividade e redução de custo, é necessário buscar alternativas de consorciamento de culturas, a fim de quebrar o ciclo de pragas e doenças e também produzir efeitos que ocorrem naturalmente e causando benefícios ao solo. Logo, o objetivo do presente trabalho é de avaliar o custo de produção da Crotalariajuncea L., analisando a viabilidade para produção de sementes, em áreas de descanso de cana-de-açúcar no município de Ilha Solteira, SP. Foram calculados os custos operacionais totais e índices de lucratividade para a cultura da Crotálariajuncea L. O Custo operacional total (COT) é R$ 3.078,09 por hectare. Dentro dos custos analisados, o que mais onerou o COT foi a colheita, correspondendo a 19,49%. O índice de lucratividade foi negativo de 58%, fato atribuído à extensão do período vegetativo da planta, que não mostra todo seu potencial produtivo e, consequentemente, não cobre os custos de produção do presente estudo.   ECONOMIC ANALYSIS OF CROTALARIA (Crotalariajuncea L.) PLANTING FOR SEED PRODUCTION IN SUGARCANE REFORM AREAS   ABSTRACT Sugarcane crops have been evidenced in the national scenario, mainly in São Paulo State, it is highly used leguminous plants during the rest period in areas where those crops are cultivated. In view of the need to reach higher productivity indexes and save costs, it is crucial to search for alternatives for companion planting, in order to break the cycle of plagues and diseases as well as reducing the effects naturally caused by them and in addition to benefiting the soil.  Accordingly, this paper aims to review the Crotalariajuncea L. production costs, considering the seeds production viability, in sugarcane resting areas in the municipality of Ilha solteira, SP. The total operating cost and profit rates for Crotálariajuncea L. crops were calculated. The total operating cost (TOC) is R$ 3.078,09 per hectare. Within the budget, the harvest was the one that encumbered it the most, corresponding to 19,49%. The profit index was 58% negative, which could be attributed to the fact of the extension of the growing season of the plant, which does not reveal all its productive potential and, consequently, does not cover the production costs of the present research.   Keywords: Costs. Profit Index. Economic Viability. Cover Plants.

Author(s):  
Edson S. Nomura ◽  
Francine L. Cuquel ◽  
Erval R. Damatto Junior ◽  
Eduardo J. Fuzitani ◽  
Ana L. Borges ◽  
...  

ABSTRACT ‘BRS Princesa’ (AAAB) and ‘Caipira’ (AAA) banana cultivars have similar sensorial features in comparison to the ‘Maçã’ banana. They are resistant to Panama disease, which allows them to grow in the Ribeira Valley, the largest banana plantation area in the São Paulo State. However, there is no information on how to fertilize crop under these edaphoclimatic conditions. This study aimed to evaluate the development and production of ‘Caipira’ and ‘BRS Princesa’ bananas, by applying four fertilization doses of N and K2O (no fertilization; 175 and 285 kg ha-1 year-1; 350 and 570 kg ha-1 year-1; 525 and 855 kg ha-1 year-1). The most adequate fertilizer recommendation for ‘Caipira’ and ‘BRS Princesa’ cultivars was 150% of the standard recommendation for banana (525 kg ha-1 year-1 of N and 855 kg ha-1 year-1 of K2O) in both production cycles, promoting adequate growth and production, since most of the evaluated characteristics showed linear responses with the increase in the fertilization doses. ‘Caipira’ and ‘BRS Princesa’ require higher amounts of N and K than that recommended for the banana crop in the São Paulo State, in order to express their productive potential.


2019 ◽  
Vol 13 ◽  
pp. 142
Author(s):  
David Ferreira Lopes Santos ◽  
Bruna Luísa Da Silva ◽  
Juliana Borba De Moraes Farinelli ◽  
Kandy Horita ◽  
Camila Aparecida Fonseca Souza ◽  
...  

Peanut cultivation has been used as a rotation crop in sugarcane renewal areas in São Paulo, state, Brazil. This practice guarantees agronomic and economic benefits to the region in a way complementary to the sugarcane crop. Small- and medium-sized rural producers have specialized in the cultivation of peanuts in the of renewal sugarcane areas, with production mainly occurring via a lease contract system. Thus, the objective of this study is to analyze the economic viability of commercial and productive operations associated with the peanut cultivation in leased areas. From a delimitated production profile modal, it was possible to analyze economic viability by triangulating secondary and primary information for peanut cultivation in Jaboticabal, the city of greatest production of this oil-giving seed in Brazil. Using Net Present Value, Internal Rate of Return, Return on Investment and Point of Equilibrium techniques, it was possible to show that the peanut crop is operationally feasible. However, financial and economic viability only occurred when leases cost equal or less than 50 sacks per hectare and when the producer was able to work with an area equal to or greater than 91 hectares (the break-even point). These results bring new economic information, supplementing that already in literature and provides data necessary for the rural producer to plan of production and size of investment.


2015 ◽  
Vol 20 (4) ◽  
pp. 1135-1141
Author(s):  
Luiz Antonio Teixeira

Studies on the work of Mascarenhas analyze his contribution to the history of health in Sao Paulo and the aspects of his work which place him in what is entitled the second generation of health workers of São Paulo state - being the first generation the one led by Emílio Ribas. This article recaptures these points and highlights his last works on preventive and community medicine. We argue that the conception of public health consolidated during his education was essential for his interest in the new model of medicine that was starting to spread in the country.


2020 ◽  
Vol 148 ◽  
Author(s):  
Gabriel Berg de Almeida ◽  
Micheli Pronunciate ◽  
Rejane Maria Tommasini Grotto ◽  
Edmur Azevedo Pugliesi ◽  
Raul Borges Guimarães ◽  
...  

Abstract Two hundred days after the first confirmed case of COVID-19 in Brazil, the epidemic has rapidly spread in metropolitan areas and advanced throughout the countryside. We followed the temporal epidemic pattern at São Paulo State, the most populous of the country, the first to have a confirmed case of COVID-19, and the one with the most significant number of cases until now. We analysed the number of new cases per day in each regional health department and calculated the effective reproduction number (Rt) over time. Social distance measures, along with improvement in testing and isolating positive cases, general population mask-wearing and standard health security protocols for essential and non-essential activities, were adopted and impacted on slowing down epidemic velocity but were insufficient to stop transmission.


Bragantia ◽  
2010 ◽  
Vol 69 (4) ◽  
pp. 843-854 ◽  
Author(s):  
Juliano Quarteroli Silva ◽  
Paulo de Souza Gonçalves ◽  
João Alexio Scarpare Filho ◽  
Reginaldo Brito da Costa

The exploitation or tapping of the rubber tree, Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg. is one of the most important cultural practices in determining useful life, yield and accounts for a major part of the total production costs in rubber farming. The objective of this work was to evaluate yield performance and economic aspects of rubber tree clones submitted to diverse tapping systems. The trial was placed in Guararapes city, São Paulo State, Brazil, in a randomized block design with split-plot in time. The plots consisted of the IAN 873, PR 261, RRI M 600 and RRI M 701 clones. The tapping systems consisted the subplots, where: ½S = tapping of half spiral cut; d/2, d/3, d/4, d/5 and d/7 = tapping every 2, 3, 4, 5 and 7 days, respectively; 11 m/y = tapping during eleven months per year; ET = ethephon (stimulant); Pa = panel application; La = lace application; 8/y = eight applications per year. The five experimental years were the sub-subplots and the ½S d/2 system was used as control. The analyzed variables were girth, dry rubber yield, tapping panel dryness and economic profitability. The ½S d/3 ET 2.5% and ½S d/4 ET 2.5% tapping systems provide the highest yield and profitability per hectare per year for the RRI M 600 and PR 261 clones. For the IAN 873 and RRI M 701 clones the yield superiority occurs in high tapping frequency; however the best profitability is obtained in the ½S d/7.ET 2.5% system.


2017 ◽  
Vol 32 (3) ◽  
pp. 280
Author(s):  
Jaqueline Zani dos Santos ◽  
Maura Seiko Tsutsui Esperancini ◽  
Eduardo De Masi ◽  
Leidiane Coelho Carvalho

- O trabalho objetivou identificar se há influência dos preços do açúcar, do etanol e da própria cana-de-açúcar na área plantada de cana-de-açúcar no estado de São Paulo, no período de 1995 a 2015. Adotou-se a metodologia proposta por Box-Jenkins de Função Transferência, que se constitui num método multivariado de séries temporais e que apresenta vantagens em relação aos métodos tradicionais de estimação. Os resultados demonstraram que os preços influenciaram o aumento na área de cana-de-açúcar, em especial, o preço do açúcar. Foi evidenciado também a existência de bidirecionalidade de efeito, com a área afetando os preços, e estes influenciando a área. Concluindo o estudo, foram feitas análises de intervenções para os principais eventos ocorridos no mercado sucroenergético para os anos em estudo, onde apenas a área de cana-de-açúcar se mostrou significativa, sendo influenciada por tais intervenções.PALAVRAS - CHAVE: Mercado sucroenergético, Desregulamentação, Função Transferência.INFLUENCE OF SUGAR-ENERGY SECTOR PRICES ON THE AREA OF SUGAR CANE IN SÃO PAULO STATEABSTRACT - The objective of this study was to identify whether there was an influence of sugar, ethanol, and sugarcane prices on sugarcane planted area in Sao Paulo state, from 1995 to 2015. The methodology used was the one proposed by Box-Jenkins, Transfer Function, which is a multivariate time series method and has advantages over traditional methods of estimation. The results showed that all prices have influenced the increase in sugarcane area, in particular, the sugar’s price. There was verified the existence of two-way effects, in which, the area affected the prices and these influenced the area. To conclude the study, analyzes of interventions were carried out for the main occurred events in sugar-energy market in the years under study. From this analysis, only the sugarcane area was significant, being influenced by the interventions.KEYWORDS: Sugar and energy market, deregulation, Transfer Function.


2018 ◽  
Vol 9 (2) ◽  
pp. 354
Author(s):  
Fernando Rodrigues de Amorim ◽  
José Claudenir Nanetti Junior ◽  
Pedro Henrique Camargo de Abreu

The Brazilian citriculture is one of the activities that generate the most income within the agrobusiness, being responsible for providing opportunities for thousands of direct and indirect workers, besides being a sector that moves a great amount of financial resources. The orange crop has been going through great price swings in the recent years, and with this, many farmers are failing to invest in potential, as a result of the risks involved in the activity. A large part of these risks is related to the buyer market, which is controlled by the large juice industries and by the high capital required for the implementation of the new orchards. The objective of this work is to identify the risk factors for attractiveness and to analyze the economic viability of the orange crop in a farm in the municipality of Bauru, in the state of São Paulo. For this, the Monte Carlo method be used to simulate the probabilities of success in the scenarios analyzed and the NPV, IRR and Payback to determine the feasibility of the project. The research is characterized as a case study. The results obtained showed that the investment is feasible, only in the real and optimistic scenario and will provide a return between the 6th and the 7th year of the project, providing a balance of approximately R$ 4,190,252.94 after 10 years of investment which represents an attractive compared to the initial investment value of R$ 937,500.00.


Irriga ◽  
2018 ◽  
Vol 21 (2) ◽  
pp. 395 ◽  
Author(s):  
Francisca Franciana Sousa Pereira ◽  
Enzo Dal Pai ◽  
Ranses J. Vázquez Montenegro ◽  
Rodrigo Máximo Sánchez Román ◽  
Alba Maria Guadalupe Orellana González ◽  
...  

ESTUDO COMPARATIVO DA EVAPOTRANSPIRAÇÃO DE REFERÊNCIA ENTRE LOCALIDADES NO ESTADO DE SÃO PAULO E NA PROVÍNCIA DE HABANA FRANCISCA FRANCIANA SOUSA PEREIRA1; ENZO DAL PAI2; RANSES J. VÁZQUEZ MONTENEGRO3; RODRIGO MÁXIMO SÁNCHEZ ROMÁN4; ALBA MARÍA GUADALUPE ORELLANA GONZÁLEZ5 E JOÃO FRANCISCO ESCOBEDO6 1Professora Depto. de Engenharia Rural - UNESP/FCA, C.P. 237; CEP: 18610-307 –  Botucatu, SP – Brasil. E-mail autor principal: [email protected] Depto. de Engenharia Rural - UNESP/FCA, Botucatu, SP – Brasil.3Geográfo, Especialista em Meteorología agrícola do Centro de Meteorología Agrícola, Instituto de Meteorología La Habana, Cuba.4Professor Depto. de Engenharia Rural - UNESP/FCA, Botucatu, SP – Brasil.5Pós- Doutora Depto. de Engenharia Rural - UNESP/FCA, Botucatu, SP - Brasil.6Professor Depto. de Engenharia Rural - UNESP/FCA, Botucatu, SP – Brasil.  1 RESUMO A FAO propôs a evapotranspiração de referência (ETo) a fim de comparar a evapotranspiração em diferentes regiões, isso porque a maioria das equações empregadas na estimativa da evapotranspiração são empíricas e limitadas a serem usadas para locais e climas similares àqueles em que as mesmas foram determinadas. O objetivo deste estudo foi analisar a diferença nos valores calculados de ETo para Botucatu e Piracicaba (Brasil) e Güira de Melena (Cuba), em uma base de dados de 30 anos, trabalhada na partição diária. Avaliaram-se diferenças sazonais entre os anos e entre as localidades e posteriormente a influência dos climas locais nestas diferenças dos valores de ETo. Os elementos climáticos temperatura máxima e mínima do ar, umidade relativa do ar, velocidade do vento a 2 m de altura e insolação foram obtidos das estações meteorológicas convencionais. Os valores da evapotranspiração em Cuba foram maiores durante os meses de verão no Hemisfério Norte. Os maiores valores de evapotranspiração em Botucatu e Piracicaba ocorreram nos meses de verão no hemisfério Sul. Existe correlação entre as três localidades mesmo com a distância entre as mesmas. Palavras-chave: demanda hídrica, irrigação, recursos hídricos, Penman-Monteith  SOUSA PEREIRA F. F.; DAL PAI, E.; VÁZQUEZ MONTENEGRO, R. J.; SÁNCHEZ ROMÁN, R. M.; ORELLANA GONZÁLEZ, A. M. G.; ESCOBEDO, J. F. COMPARATIVE STUDY OF REFERENCE EVAPOTRANSPIRATION BETWEEN LOCALITIES IN SÃO PAULO STATE AND IN THE HABANA PROVINCE  2 ABSTRACT FAO proposed the reference evapotranspiration to compare evapotranspiration in different areas, because most equations employed in estimating evapotranspiration are empirical and limited to be used for in local and climates similar to those in which they were determined. The objective of this study was to analyze the difference in the calculated values of ETo for Botucatu and Piracicaba (Brazil) and Güira Melena (Cuba), on a basis ofbased on 30- years of  data. Were evaluated sSeasonal differences between years and between locations were assessed and subsequently the influence of local climates on these ETo values differences in the values of ETo. The cClimatic elements maximum (Tmax) and minimum temperature (Tmax) and minimum (Tmin), relative humidity (RH), wind speed at 2 m height (U2) and solar radiation (n) were obtained from conventional meteorological stations. The values of eEvapotranspiration values in Cuba were higher during the summer months in the Northern Hemisphere. The highest values of evapotranspiration values in Botucatu and Piracicaba occurred in the summer months in the Southern Hemisphere. Correlation exists between the three locations with the same distance between them. It was concluded from the methodology used that the three localities have different values of evapotranspiration values and despite being in different hemispheres the evapotranspiration among Piracicaba and Güira Melena are closer than the one verified between Botucatu and Piracicaba. Keywords: water requirement, evapotranspiration, irrigation, water resources, Penman Monteith


2017 ◽  
Vol 39 (4) ◽  
Author(s):  
FERNANDO PEREZ CAPPELLO ◽  
MARCEL BELLATO SPÓSITO ◽  
MAURO OSAKI

ABSTRACT Niagara Rosada is the main cultivar of table grapes produced in São Paulo state. Its production is concentrated mainly in the regions of Campinas, Itapetininga and Jales, where it is grown under different production systems. The aim of this study was to analyze the economic viability of cv. Niagara Rosada at main regions producers of São Paulo State. Therefore, case studies were made with grape growers for each region to assess the production cost and calculate profitability. In the Campinas region, for two cycles per year, the main crop and the second crop were evaluated, and the Total Cost (TC) obtained was US$ 0.81/Kg, with US$ 0.23/Kg of Total Net Revenue (TNR). Considering only the main crop, the decrease of grape production increased the production cost and reduced profitability, the TC reached was US$ 0.93/Kg and TNR US$ 0.08/Kg. In the Itapetininga region, for two cycles per year, in main crop the TC was US$ 0.68/Kg and the TNR was US$ 0.32/Kg. Meanwhile, in the second crop, the lower productivity increased TC to US$ 1.05/Kg, but the higher price caused a TNR of US$ 0.38/Kg. In the Jales region, only one cycle per year, TC was increased to US$ 1.21/Kg, however, the high selling prices in the off-season in São Paulo State resulted in TNR of US$ 0.43/Kg. According to the results, the production of cv. Niagara Rosada in different regions of São Paulo State is profitable and has a positive return for family agriculture. Nevertheless, each region has its own characteristics in terms of production and commercialization of table grapes.


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