Fertilizantes com polímeros, DMPP e EDTA aplicados em tomate industrial e efeito residual na soja
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2014-04-25
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Universidade Federal de Goiás
Resumo
The processing of tomato (Solanum lycopersicum L.) is featured in the centerwest
region of Brazil, especially the state of Goiás, which currently leads the national
production. Soy (Glycine max (L.) Merrill) is the culture that has grown over the past
decades, especially in the central regions of Brazil, in other words, in the Cerrado. It's an
interesting succession of areas cultivated under irrigation management in winter crop,
taking advantage of the residual fertilizer left by irrigated crops. The present work aims to
evaluate the application of stabilized fertilizers and slow release in partial or total
replacement of conventional NPK fertilizer in cultivation of industrial tomato and its
residual effect on soybean in crop rotation, evaluating by the determination of the related
attributes productivity. The study was performed in field's condition in a Distrofic Red
Latosoil clay soil in the experimental area of the School of Agronomy in Goiania – Goias.
The experiment was conducted in the years 2011 and 2012 in a randomized complete block
design with seven treatments and five repetitions. Conventional fertilizer NPK 04-30-16
fertilizer and partially coated with polymers and stabilized with DMPP was used. The
source of fertilizer was applied only in the culture of industrial tomatoes associated with
tillage. In the 2011/2012 season there was no reapplication and used tillage system without
tillage. Sampling of soil and leaf were taken at flowering crops. It is concluded that partial
replacement of NPK fertilizer at planting for fertilizers with DMPP responds with
significant result for productivity. When complete replacement of fertilizer DMPP via soil
is performed the result is not significant for yield. Of soybean crops in succession to
growing tomatoes no residual effect of fertilizer was observed for productivity.
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BARBOSA, J. M. Fertilizantes com polímeros, DMPP e EDTA aplicados em tomate industrial e efeito residual na soja. 2014. 77 f. Tese (Doutorado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2014.