Experiment of two aqueous extracts as a growth stimulant ''Urtica dioica and Ulva lactuca'' on industrial tomatoes

Abstract

The objective of our study is to monitor the effectiveness of irrigation and spraying using organic treatment extracted from the nettle plant (Urtica dioica) and sea lettuce (Ulva lactuca) in terms of the development and growth of industrial tomato plants (Lycopersicon esculentum).To evaluate this impact, we divided the plants into four groups, with each group treated with a different extract (S1 Witness, S2 Compost, S3 Urtica dioica, S4 Ulva lactuca) , a total of 120 seedlings were used, and we sprayed groups S3 and S4 with the fixed extract with Tween 20, measuring parameters such as the number, diameter, and growth rate of stems, leaf count and area, fruit weight, and harvested quantity for each group , the study took place from 08/02/2023 to 08/06/2023. The quantitative analysis obtained indicated that after using both nettle and sea lettuce fertilizers, the treated plants showed a positive increase in all tested parameters, especially with the sea lettuce fertilizer, However, it seems that the extracts have shown an effect in protecting plants from diseases and insects by reducing and limiting their impact. This means that the use of extracts may help reduce the infections caused by diseases and insects in plants. Based on the results, we can conclude that sea lettuce and nettle fertilizers act as growth stimulants and contribute to the development and production of tomato plants.