Evaluation of fertigation and fertilizer polymer on culture of grape tomato from the management by capacitance sensors and time domain reflectometry (TDR)

• Grant number: 17/25610-7
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: March 01, 2018
• End date: July 31, 2018
• Field of knowledge: Agronomical Sciences - Agricultural Engineering - Soil and Water Engineering
• Principal Investigator: Claudinei Fonseca Souza
• Grantee: Maria Eduarda Stochi Conchesqui
• Host Institution: Centro de Ciências Agrárias (CCA). Universidade Federal de São Carlos (UFSCAR). Araras , SP, Brazil

Abstract

The lack of efficient alternatives for fertilization in greenhouse that do not cause salinization of the soil as is the case of fertirrigation is evident, because of this new technologies are introduced to meet the needs of the agricultural market. The objective of this work is to test the efficiency of fertilizer polymers compared to fertigation in the tomato culture, using moisture sensors to automate the management of irrigation and verify the interaction of these with the fertilizer polymers. The experiment will be held at the CCA/ UFSCar, in a greenhouse, the experimental design will be in a randomized block, composed of 4 interactions with 3 repetitions, totaling 12 plots. The interactions that will be assessed are Fertirrigation x TDR; Fertigation x Capacitance; Fertilizer polymers x TDR; and Fertilizing polymers x Capacitance; soil moisture being monitored by Flower power sensors (capacitance) and TDR100. The tomato Grape seedlings will be transplanted about drip superficial lines. Qualitative and quantitative parameters will be assessed as fruit size (length and diameter), number of fruits, fruit mass, pH and Brix. In addition, at the end of the experiment will be collected leaves of the plants and made leaf analyses and evaluation of fresh and dry mass of the root, leaf and stem, as well as the root volume. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SOUZA, CLAUDINEI F.; CONCHESQUI, MARIA E. S.; DA SILVA, MARILIA B.. SEMIAUTOMATIC IRRIGATION MANAGEMENT IN TOMATO. Engenharia Agrícola, v. 39, n. SI, p. 118-125, SEP 2019. (17/25610-7)

SOUZA, CLAUDINEI FONSECA; SALA, FERNANDO CESAR; FAEZ, ROSELENA. Polymer fertilizer and the fertigation of grape tomatoes in protected cultivation. Scientia Horticulturae, v. 311, p. 6-pg., 2023-01-02. (17/25610-7, 05/00906-3, 14/06566-9)

DA SILVA, ALEXSANDRO OLIVEIRA; DA SILVA, BRUNA AIRES; SOUZA, CLAUDINEI FONSECA; DE AZEVEDO, BENITO MOREIRA; BASSOI, LUIS HENRIQUE; VASCONCELOS, DENISE VIEIRA; DO BONFIM, GUILHERME VIEIRA; JUAREZ, JUAN MANZANO; DOS SANTOS, ADAO FELIPE; CARNEIRO, FRANCIELE MORLIN. Irrigation in the age of agriculture 4.0: management, monitoring and precision. REVISTA CIENCIA AGRONOMICA, v. 51, n. SI, 2020. (17/25610-7)