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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Efeito do ensacamento na qualidade do fruto do tomate sob manejo org?nico e convencional / Efects of baggins on the quality of tomato fruits under organic and conventional management

Ferreira, Margarete Satsumi Tiba 30 July 2013 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-02-21T13:17:10Z No. of bitstreams: 1 2013 - Margarete Satsumi Tiba Ferreira.pdf: 3840889 bytes, checksum: abf630228fe1ec8e263f83e62d380174 (MD5) / Made available in DSpace on 2017-02-21T13:17:10Z (GMT). No. of bitstreams: 1 2013 - Margarete Satsumi Tiba Ferreira.pdf: 3840889 bytes, checksum: abf630228fe1ec8e263f83e62d380174 (MD5) Previous issue date: 2013-07-30 / Two experiments were conducted on two farms located in the city of Nova Friburgo - RJ, Cultivar and Hikari. On Cultivar farm, tomato was cultivated under organic management in a 4 x 2 factorial design experiment - with four types of bagging and two types of ground coverages - in four replications. Besides the referential treatment, which was conducted bagless, brown paper, nonwoven fabric and glassyne were tested over the period of August to December 2012. The tomato was grown under straw black oats and lupins. On Hikari farm, which was in an agroecological transition, we performed the second experiment, conducted in two different greenhouses, one under chemical management and other under biological management, both performed over the period of October 2012 to March 2013. The experiment was conducted in a 2 x 2 completely randomized experimental design (glassyne paper, without bagging and with both types of pest control, chemist and biological) with eight repetitions. In both experiments Tomatec principles were adopted using mulching, drip irrigation, vertically trellised staking, organic fertilization and integrated pest management (IPM). The evaluated parameters were bagging fresh weight influence, diameter, amount of residues and fruit production. The farmers and the student?s approach over tomato production with agroecological transition bias allowed us to understand the sustainable production challenges on protected areas and provided a great experience on procedures, empowerment and professional knowledge. Bagging increased tomato yield under organic production, and the brown paper bags made the most of outstanding quality and production. Compared to the bagless process, economic gains were present in treatments with biological and chemical management using glassyne. / Foram realizados dois experimentos em duas propriedades rurais, S?tio Cultivar e S?tio Hikari, localizados no munic?pio de Nova Friburgo-RJ. No S?tio Cultivar o tomate foi cultivado sob manejo org?nico num experimento em delineamento experimental com blocos inteiramente casualizados em fatorial 4 x 2 (quatro tipos de ensacamentos e dois tipos de cobertura do solo) com quatro repeti??es. Al?m do tratamento referencial, que foi o sem o uso do saco, foram testados o papel pardo, o tecido n?o tecido (TNT) e o papel glassyne no per?odo de agosto a dezembro de 2012. O tomate foi cultivado sob as palhadas de aveia preta (Avena strigosa ) e tremo?o branco (Lupinus albus). No S?tio Hikari em transi??o agroecol?gica, o tomate foi cultivado em duas estufas, uma sob manejo qu?mico e a outra com manejo biol?gico no per?odo de outubro de 2012 a mar?o de 2013. Este estudo foi realizado no delineamento experimental de blocos inteiramente casualizados com quatro tratamentos em fatorial 2 x 2 (papel glassyne e sem ensacamento e dois tipos de controle fitossanit?rio, um qu?mico e outro biol?gico), com oito repeti??es. Em ambos os experimentos foram adotados os princ?pios do sistema de produ??o denominado de Tomatec, utilizando-se cobertura vegetal, irriga??o com gotejamento, tutoramento vertical com fitilho, aduba??o org?nica/mineral e o manejo integrado de pragas (MIP). Os par?metros avaliados foram a influ?ncia do ensacamento no peso fresco, di?metro, quantidade de res?duos e na produ??o dos frutos. Abordagem sobre a viv?ncia dos produtores e da mestranda sobre a produ??o de tomate com vi?is de transi??o agroecol?gica permitiu compreender os desafios da produ??o sustent?veis dos ambientes protegidos e uma grande experi?ncia em torno dos processos de produ??o, empoderamento e conhecimento profissional. O ensacamento aumentou a produtividade do tomateiro em sistema org?nico de produ??o, sendo os sacos confeccionados com papel pardo os que mais se destacaram na qualidade e na produ??o. Nos tratamentos com manejo qu?mico e biol?gico, houve um ganho econ?mico com a utiliza??o do papel glassyne, comparativamente ? aus?ncia de ensacamento

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