Loading...
Publication
Estudo da aplicação de um regenerador de solos numa parcela de tomate de indústria: aplicação de um regenerador de solos à base de microrganismos benéficos, para redução do desenvolvimento de microrganismos fitopatogénicos como nemátodes, bactérias e fungos de solo
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 10.74 MB | Adobe PDF |
Advisor(s)
Abstract(s)
Este estudo teve como objetivo avaliar os efeitos da aplicação de um regenerador de solos
(NEMAGREEN), um produto biológico à base de microrganismos, nomeadamente Azotobacter
choococcum na cultura de tomate para indústria (Solanum lycopersicum L.).
Dada a crescente necessidade de se desenvolverem práticas mais ecológicas e sustentáveis no
setor agrícola, este produto surge como uma alternativa que visa melhorar a estrutura do solo e o
sistema radicular das plantas, fornecer microrganismos benéficos ao solo, evitando o
desenvolvimento de organismos fitopatogénicos, em particular, nemátodes, bactérias e fungos de
solo.
Foi realizado um ensaio em dois setores de rega com 2,9 ha, numa parcela com 18 ha, onde
foram testadas duas modalidades: (i) A ensaio em branco, não se aplicou o regenerador e (ii) B
onde se aplicou o regenerador de solos (20L/ha). Este trabalho experimental foi realizado com
amostras aleatórias em três repetições com trinta plantas, em cada modalidade/repetição.
A avaliação dos parâmetros microbiológicos do solo, assim como as análises de solo foram
feitas antes da plantação e imediatamente antes da colheita. O registo dos parâmetros de
desenvolvimento das plantas foi efetuado, 30, 60 e 90 dias após plantação e a produção estimada
assim como os parâmetros de qualidade dos frutos foi realizada no final do ensaio.
O regenerador de solos foi aplicado na rega e avaliou-se o desenvolvimento radicular das
plantas, macroelementos primários presentes no solo, população de nemátodes, bactérias, fungos
micorrízicos, artrópodes, produção estimada e grau brix.
Os resultados mostraram que a aplicação do regenerador de solos tem efeitos benéficos no
desenvolvimento radicular das plantas, resultando num aumento de produção e qualidade dos
frutos. Verificou-se um aumento das micorrizas, a vida do solo (atividade B-glucosidade), número
de frutos por planta e diminuição na percentagem de frutos verdes.
Apesar de não se terem verificado diferenças significativas relativamente à presença de
artrópodes, azoto disponível, fosforo assimilável, nemátodes, bactérias fixadoras de azoto, vida
no solo (atividade desidrogenase), brix, cor e calibre houve uma melhoria após a aplicação do
regenerador de solos. Estes resultados indicam que a aplicação continuada do regenerador de
solos poderá ser uma boa alternativa mais agroecológica para a melhoria da saúde do solo.
This study aimed to evaluate the effects of the application of a soil regenerator (NEMAGREEN), a biological product based on microorganisms, namely Azotobacter choococcum, in the tomato crop for industry (Solanum lycopersicum L.). Given the growing need to develop more ecological and sustainable practices in the agricultural sector, this product appears as an alternative that aims to improve the structure of the soil and the root system of plants, provide beneficial microorganisms to the soil, preventing the development of phytopathogenic organisms, in in particular, soil nematodes, bacteria and fungi. A test was carried out in two irrigation sectors with 2.9 ha, in a plot with 18 ha, where two modalities were tested: (i) A blank test, the regenerator was not applied and (ii) B where the regenerator was applied of soils (20L/ha). This experimental work was carried out with random samples in three replications with thirty plants, in each modality/repetition. The evaluation of soil microbiological parameters, as well as soil analyzes were carried out before planting and immediately before harvesting. The recording of plant development parameters was performed 30, 60 and 90 days after planting and the estimated production as well as the fruit quality parameters were performed at the end of the trial. The soil regenerator was applied in irrigation and the root development of plants, primary macroelements present in the soil, population of nematodes, bacteria, mycorrhizal fungi, arthropods, estimated production and brix degree were evaluated. The results showed that the application of the soil regenerator has beneficial effects on the root development of plants, resulting in an increase in production and fruit quality. There was an increase in mycorrhiza, soil life (B-glucosity activity), number of fruits per plant and a decrease in the percentage of green fruits. Although there were no significant differences regarding the presence of arthropods, available nitrogen, assimilable phosphorus, nematodes, nitrogen fixing bacteria, soil life (dehydrogenase activity), brix, color and gauge, there was an improvement after the application of the soil regenerator. These results indicate that the continued application of the soil regenerator may be a good, more agroecological alternative for improving soil health.
This study aimed to evaluate the effects of the application of a soil regenerator (NEMAGREEN), a biological product based on microorganisms, namely Azotobacter choococcum, in the tomato crop for industry (Solanum lycopersicum L.). Given the growing need to develop more ecological and sustainable practices in the agricultural sector, this product appears as an alternative that aims to improve the structure of the soil and the root system of plants, provide beneficial microorganisms to the soil, preventing the development of phytopathogenic organisms, in in particular, soil nematodes, bacteria and fungi. A test was carried out in two irrigation sectors with 2.9 ha, in a plot with 18 ha, where two modalities were tested: (i) A blank test, the regenerator was not applied and (ii) B where the regenerator was applied of soils (20L/ha). This experimental work was carried out with random samples in three replications with thirty plants, in each modality/repetition. The evaluation of soil microbiological parameters, as well as soil analyzes were carried out before planting and immediately before harvesting. The recording of plant development parameters was performed 30, 60 and 90 days after planting and the estimated production as well as the fruit quality parameters were performed at the end of the trial. The soil regenerator was applied in irrigation and the root development of plants, primary macroelements present in the soil, population of nematodes, bacteria, mycorrhizal fungi, arthropods, estimated production and brix degree were evaluated. The results showed that the application of the soil regenerator has beneficial effects on the root development of plants, resulting in an increase in production and fruit quality. There was an increase in mycorrhiza, soil life (B-glucosity activity), number of fruits per plant and a decrease in the percentage of green fruits. Although there were no significant differences regarding the presence of arthropods, available nitrogen, assimilable phosphorus, nematodes, nitrogen fixing bacteria, soil life (dehydrogenase activity), brix, color and gauge, there was an improvement after the application of the soil regenerator. These results indicate that the continued application of the soil regenerator may be a good, more agroecological alternative for improving soil health.
Description
Dissertação apresentada para a obtenção do grau de Mestre na área de Engenharia Agronómica, na Escola Superior Agrária de Santarém, Instituto Politécnico de Santarém
Keywords
Solanum lycopersicum L. Tomate Solo Regenador Azotobacter Agroecologia Tomato Soil Regenerator Agroecology
Pedagogical Context
Citation
Januário, Maria Madalena Cipriano (2022). Aplicação de um regenerador de solos à base de microrganismos benéficos, para redução do desenvolvimento de microrganismos fitopatogénicos como nemátodes, bactérias e fungos de solo. Dissertação apresentada para a obtenção do grau de Mestre na área de Engenharia Agronómica, na Escola Superior Agrária de Santarém. 61p. Disponível em: http://hdl.handle.net/10400.15/4260