EFFECT OF BIO-FERTILIZERS AND CHEMICAL FERTILIZERS IN 1- SOME CHARACTERISTICS OF VEGETATIVE GROWTH OF THREE VARIETIES OF OKRA (Abelmoschus esculentus L.)

Abstract

Field experiment was conducted during the spring agricultural season of 2015 in Hibhib Township - Governorate of Diyala. The study included three factors. Three varieties (Ptira, Patra, and Samara) of Okra were used with three types of biofertilizers (Bionutrients B1, Biohealth B2, and Endospor B3 and Without addition biofertilizers (B0) with two levels of chemical fertilizers (50% and 100 %) that recommend of Okra to study the effect these factors on some vegetative growth parameters of Okra varieties mentioned above. Split-split plot design in R.C.B.D was used with 3 replications. Plant height, number of branches, number of leaves, leaf area and stem diameter were studied. Differences between the averages of the traits were studied according to Duncan test polynomial at level 0.05. The study showed superior of patra variety in plant height (132.03 cm), number of branches (17.08), number of leaves (394.0), leaf area (709.08 dc2) and stem diameter (34.60 mm). Biohealh was superior in plant height (126.79 cm), number of leaves (11.77), stem diameter (34.32 mm), and endospore enriched in leave area (688.97dc2) compared to non-fertilization. Level of chemical fertilizer 50% was superior in the number of leaves (390.5), leaf area (643.27 dc2) and stem diameter (34.53 mm) compared to 100%. The interaction between the three factors was significant in most studied attributes.