تأثير السماد الحيوي (Em1)‎ و مستخلص الأعشاب البحرية (600 Alga)‎ في نمو و إنتاجية نبات البطاطا

الملخص EN

The experiment was carried out in an agricultural field in the countryside of Horns/ Syria, during the spring season of 2020, in order to study the effect of foliar spraying with two concentrations of biological fertilizer (Em1) (2, 4 ml/I) and two concentrations of seaweed extract (Alga 600) (3, 6 g/l), and the interaction between them on some of vegetative growth and productivity characteristics of the potato cv Spunta.

The results showed that the treatment with biological fertilizer (Em1) at 4 ml/l supplemented with seaweed extract (Alga 600) at 3 g/l increase the plant height (54.06 cm), number of aerial stems (4.05 plant), leaf surface area/plant (159.74 cm2), and number of tubers (5.31 plant) comparing with other treatments and control.

However, the treatment with biological fertilizer (Em1) at 4 ml/l supplemented with seaweed extract (Alga 600) at 6 g/l increased tuber weight (236.24 g/tuber), yield (33.58 tons/ha), percentage of dry matter (22.46 %) and starch (15.82 %) comparing with ©2021 The Arab Center for the Studies of Arid Zones and Dry Lands, All rights reserved.

ISSN:2305 - 5243 ; AIF-181 (p: 108 -117) other treatments and control.

The results also exhibited that the treatment of seaweed extract (Alga 600) at 6 g/l gave the best result in improving the concentration of total soluble salts (TSS = 7.89 %) in the fruits.