The effect of irrigation and fertilisation rate on growth parameters of early medium tomato grown in unheated greenhouse

Ivanka Mitova, Galina Patamanska, Antoaneta Gigova

Резюме: An experiment was conducted in the experimental field of ISSAPP “Nikola Pushkarov” in Chelopechene, Sofia, during 2019 with tomatoes variety “Big Beef F1” grown under full and deficit drip irrigation and fertigation with increasing fertilizer rates in unheated polyethylene greenhouse. In the phase 7-8th inflorescence, growth parameters were measured. Nevertheless that under deficit irrigation the maximum fertilized plants were the highest, the plants of the treatment with optimal fertilization have the best development. The plants under full irrigation have the thickest stems – 6,5% above the average diameter for the parameter; by 19,8%, they are leafier than the average value; by 16.7% more inflorescences and by 33,7%, more formed fruits than the average for the parameter. The results are statistically significant at the 0,05 level except for the stem diameter. Better growth parameters were obtained for the tomato plants under full irrigation compared to those under deficit irrigation: they were 15,9% higher; by 17,5% more leafy; with 10,8% more inflorescences and 34,1% more fruits.

Ключови думи: deficit irrigation; drip irrigation; fertigation; greenhouse; growth parameters; Solanum lycopersicum

Дата на публикуване: 2021-08-20