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- Title
CONTRIBUTION OF COMBINATIONS OF MINERAL AND BIOFERTILIZER AND ORGANIC FERTILIZER IN THE CONCENTRATION OF N P K ON SOME PHYSIOLOGICAL CHARACTERISTICS AND YIELD OF OATS (AVENA SATIVA L.).
- Authors
Al-Freeh, Lamiaa M. S.; Al-Abdullah, Sundus A. M.; Huthily, Kadhim H.
- Abstract
A field experiment was carried out during the growing seasons of 2016-2017 and 2017-2018 in Al-Zubair district, Basra Province, to study the effect of combinations of mineral ,bio-fertilizer and organic matter fertilization in the concentration of N, P and K nutrients, some physiological growth parameters and yield of oat, var. shifaa. Azotobacter, Phosphorus solubilizing bacteria and potassium solubilizing bacteria were used in the experiment, in seven levels: (B0 = control, B1 = mineral NPK, B2 = NPK biofertilizer, B3 = N bio. + mineral PK, B4 = NP bio. + mineral K, B5 = NK bio. + mineral P and B6 = PKbio. + mineral N), the experiment was conducted according to split-plot design using randomized complete block design (RCBD) with three replicates, the fertilizers combinations were placed in the main plots, while the two levels of organic fertilizer (O0 and O1) were placed in the sub-plots. The results showed that fertilization with bio-fertilizer NPK (B2) was associated with the highest values for both seasons for nitrogen and phosphorus concentration in vegetative part, crop growth rate, relative growth rate, net assimilation rate, flag leaf area and leaf duration time. Also gave the highest grain yield reached 7.689 and 11.645 Mg ha-1 with an increase rate of 174% and 194.81% than control treatment for both seasons respectively. Application of organic fertilizer (O1) was achieved an increase in most parameters and gave highest grain yield (6.103 and 9.859 Mg ha-1), with an increase rate of 22.97 and 30.17% for two seasons respectively, than control (O0). The interaction between the two factors was significantly affected in some studied traits and combination O1 × B2 gave highest grain yield reached 8.269 and 12.491 Mg ha-1 for two season respectively. It can be concluded that the mineral fertilizer can be replaced with organic and bio-fertilizers, thus reducing cost and pollution caused by mineral fertilization.
- Subjects
BIOFERTILIZERS; ORGANIC fertilizers; OATS; FERTILIZATION (Biology); AZOTOBACTER
- Publication
Plant Archives (09725210), 2019, Vol 19, Issue 2, p3767
- ISSN
0972-5210
- Publication type
Article