DEFICIT IRRIGATION OF SUBSURFACE DRIP-IRRIGATED GRAPE TOMATO
AUTOR(ES)
Mendonça, Thaís G.; Silva, Marília B. da; Pires, Regina C. de M.; Souza, Claudinei F.
FONTE
Eng. Agríc.
DATA DE PUBLICAÇÃO
2020-08
RESUMO
ABSTRACT Agriculture is one of the segments that most uses water and developments have been made to save irrigation water. Deficit irrigation is a technique that can contribute to production and water saving in agriculture. This study aimed to evaluate the viability of deficit irrigation in tomato production irrigated by subsurface drip in a greenhouse and estimate water saving. The experiment was conducted at the CCA/UFSCar, in Araras, São Paulo, Brazil, with grape tomato cultivation. It consisted of three treatments, 100 % water depth and deficit irrigation (75 and 50 % of water depth), with a randomized block design. Irrigation management was performed using mean soil moisture data collected through TDR probes installed in each treatment. Tomato plants were cultivated for 137 days and conducted vertically with one stem and six bunches. Fruit size, number and mass of fruits per plant, fruit pH and soluble solids were attributes measured and analyzed weekly. The deficit irrigation of 50 % treatment presented lower values in all attributes evaluated and 90.6 % of water saving. The 75 % treatment showed lower value only for pH and fruit diameter and 70.4 % of water saving. Deficit irrigation of 75 % was viable for tomato cultivation in greenhouse and for water saving in crop cycle.
Documentos Relacionados
- SOIL SOLUTION DISTRIBUTION IN SUBSURFACE DRIP IRRIGATION IN SUGARCANE
- Evapotranspiração de cafezal semi-adensado irrigado por gotejamento e sua relação com a evapotranspiração de referência
- Impacts of fertigation via surface and subsurface drip irrigation on growth rate, yield and flower quality of Zinnia elegans
- Protótipos e avaliação de emissores para irrigação localizada subsuperficial
- EVAPOTRANSPIRAÃÃO E COEFICIENTES DE CULTIVO (KC) DA CANA-DE-AÃÃCAR IRRIGADA POR GOTEJAMENTO SUBSUPERFICIAL