Response of Oat (Avena sativa L.) Varieties to Mineral and Bio ‎Fertilizers

Lamiaa. M. Al-Freeh*(1) Kadhim H. Huthily(1) and Sundus.  A. Alabdulla(1)

(1). Crops Department, Facultu of Agriculture, Basrah University, Iraq.

(*Corresponding author: Dr. Lamiaa. M. Al-freeh. E-Mail:

Received: 16/01/2020                               Accepted: 22/03/2020


A field experiment was carried out during the growing seasons of 2016/2017 and 2017/2018 at Al-Zubair district, Basra Province, to study the response of three varieties of oats (Ganzania, Shafaa and Carrolup) to mineral and bio fertilizer, nitrogen-fixing bacteria (Azotobacter chroococcum), phosphorus solubilizing bacteria (Pantoea agglomerans) and potassium solubilizing bacteria (Bacillus subtits and Bacillus mucilaginosus) were used in seven levels: (B0 = control, B1 = mineral NPK, B2= NPK bio fertilizer, B3 = N bio. + mineral PK, B4 = NP bio. + mineral K, B5 = NK bio. + mineral P and B6 = PK bio. + mineral N) on yield components, grain yield and  the concentration of NPK nutrients in grains and vegetative parts. Randomized complete block design RCBD was used which arranged according to split-plot design with three replicates, the fertilizers were placed on the main plots, while varieties were at the sub-plots. The results showed that fertilization with bio-fertilizer NPK (B2) increased significantly the studied traits (NPK% concentration in grains and vegetative part, panicles/m2, grains/panicle, 1000 grain weight, grain yield, biological yield and protein yield). For the two seasons, while treatment B2 gave an increase in grain yield of 189.96 and 197.3%, and the biological yield 112.92 and 137.36% compared with control treatment for the two seasons respectively. Varieties differed in most of the studied traits, Ganzania resulted in highest grain yield in the first season (5.774 t/ha) while Shafaa gave the highest yield in the second season (8.691 t/ha). The interaction of Ganzania with B2 and gave the highest grain yield (8.429 t/ha) in the first season, while in the second season all varieties showed significant superiority with B2 and produced the highest grain yield, biological yield and protein yield without significant difference between them. The study recommends the use of bio-fertilization that containing various microorganisms (nitrogen-fixing and phosphorous  potassium solubilizing bacteria) and it is preferable to grow Ganzania or the Shafaa variety.

Key words: Oat, Varieties, Bio fertilizers, Mineral, Yield.

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