تأثير إضافة رواسب أحواض تربية الأسماك المجففة وبعض مستخلصات الطحالب البحرية في إنتاج نبات الخيار في البيوت المحمية

Abstract

The research was conducted in the village of Hmeimim, Jableh district, Lattakia Governorate, in an unheated plastic hall, during the 2022-2023 agricultural season, to study the effect of fishpond sediments and two types of seaweed extracts on the floral and fruiting growth of cucumber plants. The experiment was conducted on the hybrid cucumber plant "Romano F1", which is a female hybrid that produces only female flowers. The study used dried fish pond sediment fertilizer at a rate of 300 g/m2 as soil fertilizer, and two types of seaweed extracts (Marine) and (Grental) at a rate of 1.50 ml/L as spraying and soil fertilizer. The study included 8 treatments as follows: T0: control, T1: plants fertilized with dried fish pond sediments, T2: dried fish pond sediments + foliar spray with (Marine) extract, T3: dried fish pond sediments + foliar spray (Grental), T4: dried fish pond sediments + foliar spray (Marine) + Grental, T5: dried fish pond sediments + fertilization (Marine), T6: dried fish pond sediments + fertilization (Grental), T7: dried fish pond sediments + fertilization (Marine) + (Grental). There were 4 replicates for each treatment and 10 plants in each treatment, so the number of plants in the experiment became 320 plants according to a complete randomized block design. Readings were taken related to floral, fruiting, and productivity indicators of cucumber plants (for parthenocarpic fruits). The results showed that the use of these organic fertilizers in general had positive effects on all studied indicators. Compared to the control, treatments T7 and T4 outperformed the rest of the treatments in all studied indicators. Treatments T7 and T4 achieved an increase in the number of female flowers (83.01, 81.17 flowers/plant) respectively and an increase in the number of fruits formed per plant (72.77, 70.10 fruits/plant) with significant differences from the rest of the treatments and the highest fruit set percentage 87.66 86.36%. As for the production indicators, the highest fruit weight was in treatment T7 followed by treatment T4. These two treatments gave the highest production per plant and the highest productivity per unit area. We conclude from the previous results that it is good to use dried fish pond sediments as a mixture by spraying or irrigation with seaweed extracts on "Romano F1" cucumber plants to improve and increase flowering, fruiting and productivity growth indicators.