RESPONSE OF LOCAL ORANGE TRANSPLANTS TO BIO AND ORGANIC FERTILIZERS AND SPRAYING WITH MORINGA LEAVES EXTRACT

Abstract

This experiment was carried out in 2023 season of spring and fall growth cycle in a private canopy in Al-Radwaniyah city, Baghdad Governorate, study included addition of bacterial biofertilizer at four treatments: no addition (A1), addition of Stenotrophomonas maltophilia bacteria (A2) , addition of Azospirillum brasilense bacteria (A3) and addition of both types of bacteria (A4) and organic fertilizer (Decomposing buffalo manure) at three levels (0, 250 and 500 g.soil-1), which are symbolized by B0, B1, and B2, respectively Added once during the spring and fall growing cycle, and spray moringa extract at three levels (0, 20 and 40 g.L-1), which are symbolized M0, M1, and M2, respectively spray 5 times every 15 days. Treatments were replicated three times at factorial experiment in a RCBD and thus number of transplants used was 108. Experimental results showed that adding two types of bacteria (A4) and buffalo manure at a level of 500 g.soil-1 (B2) and spraying moringa extract at a concentration of 40 g.L-1 (M2) as interaction treatment A4B2M2 produced best results in shoot number, stem diameter, leaf potassium and iron percent %, and epidermal and spongy cells layers thickness, (25.00, 41.00) shoot.plant-1, (14.247, 5.283) mm, (2.980, 2.885) %, (215.8, 220.7) mg.kg-1 for two growing seasons, respectively, and (48.60, 108.4) micrometer, respectively compared to control treatment.

Keywords

• citrus, Bacteria, potassium, growth, anatomi, Buffalo