Ahmadpour, Sahar (2016) Effects of chemical and biological phosphorus fertilizers on yield and yield components o f safflower in limited irrigation. Masters thesis, University of Zabol.
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Abstract
With regard to water shortage and consequence of Chemical Fertilizer application in terms of eco-recognition of influencing factor on production under water limitation and positive impact of organic fertilizer. In order to examine the effect of chemical and biological phosphorous fertilizer on yield and yield components of safflower under various moisture condition an experiment was conducted as split plot randomized complete block with 3 replicates in research farm of Zabol University, located in Sistan Dam. Main-factor included normal irrigation, Irrigation cutting before flowering stage and Irrigation cutting after flowering. Sub-factor comprised phosphorous fertilizer at 4 levels including: control (no fertilizer application), 100 percent of phosphorous chemical fertilizer at 25kg/hectare, 50 percent of phosphorous chemical fertilizer + bio-fertilizer (Phosphate barvar 2) and bio-fertilizer (Phosphate barvar 2) at 100 g/hectare. Result indicated that head number per plant, one thousand seed weight, biological and grain yield, oil and protein percentage in seeds, content of chlorophyll a, b, total chlorophyll and carotenoids influenced by drought stress. The greatest quantity of this traits was obtained at normal irrigation. Seed yield decreasing at irrigation cutting treatment over the control was 21.5 and 28.1 percent, respectively. The impact of fertilizer on all studied parameters was significant and integrated fertilization produced the greatest oil percentage in seed was obtained, which was 11.5 percent greater than control. The interaction of drought and fertilizer on number of head per plant, one-thousand grain weight, biological and seed yield, protein percentage in seed, chlorophyll a, b, total chlorophyll and carotenoids was significant. The results suggested that the greatest quantity of this traits was achieved at no drought stress and application of 50 percent of phosphorous chemical fertilizer.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Drought stress, Oil percentage, Phosphate B-2, Leaf Chlorophyll, one time lack of irrigation |
| Subjects: | S Agriculture > SB Plant culture |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 11 Dec 2016 07:39 |
| Last Modified: | 11 Dec 2016 07:39 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/1114 |
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