Effects of Spraying with Urea and Seaweed Extract (Tecamin Algae) on Growth and Chemical Content of Date Palm Tree Cv. Zahdi

Abstract

The following study was conducted in a private date palm orchard in the area of AlFurat, district of Heet throughout the season of 2019-2020 on 20-year-old date palm trees, Zahdi cultivar. The purpose was to study the effects of spraying the Urea compound with concentrations of (0, 1 and 2 g L-1) as well as seaweed extract (Tecamin Algae) with (0, 2 and 4 g L-1) of concentration on the growth and chemical content of the trees. 27 date palms were randomly selected. A factorial experiment with RCBD design was carried out such that it includes 9 treatments with 3 replicas for each treatment. Each tree was treated as one experimental unit. The results demonstrated that treatments of Urea spraying, especially with 2 g L-1 concentration, contributed to achieving the best results for response measurements (Leaf Area, Total Chlorophyll, Total Carbohydrates in the Leaflets, Nitrogen, and Phosphorous), which were (2.61 m2, 10.65 mg g-1, 7.46%, 1.69% and 0.40%), respectively. The content of phosphorous in the leaflets was not significantly affected when sprayed with Urea. On the other hand, seaweed extract spraying had a significant effect on all the response measurements. The 4 ml L-1 concentration gave the highest figures for our responses (total chlorophyll 10.38 mg g-1, Carbohydrates 7.52%, Nitrogen 1.65%, Phosphorus 0.37% and Potassium 0.67%). The concentration of (2 ml L-1) gave the largest area of the leaf at 2.63 m2.

The Effect of Adding Nano NPK Fertilizer EM1 biofertilizer and Spraying with Algae Extract on some Growth Characteristics and Yield of Date Palm Variety Khastawi

“…Photosynthesis, which leads to the accumulation of carbohydrates and thus all of this is reflected in the yield and its characteristics [23]. This agrees with [24] and [25] on palm trees.…”

Enhancing Growth and Nutrient Uptake in Bouffegous Date Palm Variety With Seaweed Extracts and AMF/PGPR Combination in the Field.

“…Alebidi et al, 2021;Badran, 2016;Murad & Al-Dulaimy, 2021;Omar, 2017), as well as other crops like tomato, Ceropegia maculate bedd and sweet pepper plants(Ali et al, 2022;Anbazhakan et al, 2022). The observed increase in growth rate can be attributed to the noted improvements in various physiological activities, including nutrient uptake, chlorophyll content, and chlorophyll uorescence, recorded in the present study.…”

“…Previous research has shown that these seaweed extracts have positive effects on the growth parameters of various plant species. For instance, Ecklonia maxima has been shown to increase nutrient content and absorption in the Zahdi date palm variety (Murad & Al-Dulaimy, 2021), displayed signi cant effects on the parameters of Hordeum vulgare, such as plant height, dry weight, and leaf area (Rouphael et al, 2017). Ecklonia maxima extract, which contains phytohormones, was found to have signi cant growth-stimulating effects on Spinacia oleracea plants, leading to an improvement in yield, nutritional quality, and cytokinin pro les (Kulkarni et al, 2019).…”

Preparation of Seaweed Nanopowder Particles Using Planetary Ball Milling and Their Effects on Some Secondary Metabolites in Date Palm (Phoenix dactylifera L.) Seedlings

“…They move inside the plant by following apoplastic pathways. The building blocks of date palm tissues are thought to be the monosaccharides that are directly created during photosynthesis [ 84 ]. Generally, the overall carotenoid concentration of dates varied depending on whether they were yellow or red in colour.…”