تأثير التغذية الورقية بالمخصب الحيوي EM1 ومستخلص الطحالب البحرية Amino Food في بعض مؤشرات النمو الخضري والإنتاجية لصنف البرتقال "اليافاوي".

Abstract

Ñ  ABSTRACT   Ñ

The study was conducted in Lattakia Governorate in a private orchard in the village of Damsarkho during the 2023 season on orange trees "YafoY" grafted on bitter orange rootstock. This work has been achieved to study the effect of foliar spraying with the biofertilizer EM1 and the seaweed extract Amino food, individually and jointly, on some vegetative growth indicators. The experiment was designed according to a completely randomized design, as it included nine treatments and three replicates. The results showed that foliar feeding with the biofertilizer EM1 and the seaweed extract Amino food, either individually or jointly, led to significant differences in all studied traits compared to the control.  The combined spraying treatment with biofertilizer and seaweed extract at a concentration of 3 ml/L each gave the highest values ​​in terms of leaf surface area, leaf thickness, total chlorophyll percentage in leaves, dry matter percentage and shoot length, where they were recorded in order: 42.88cm², 0.40mm, 73.17 spad, 54.58%, 17.33cm,262 Kg. The results of the statistical analysis showed the superiority of the ninth treatment (EM1 3 cm³/L + Amino food 3 cm³/L) over the rest of the other treatments, including the control.