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      • Open Access Article

        1 - Effects of nano fertilizer and different levels of nitrogen on grain and oil yield of sesame
        hamed bekhrad fateme niknam B. Mahdavi
        To evaluate effects of nano fertilizer and different levels of nitrogen on sesame, a factorial experiment, arranged in randomized complete block design with 3 replications, was done in the research station of Kahnoj. Factors in this experiment included four nano fertili More
        To evaluate effects of nano fertilizer and different levels of nitrogen on sesame, a factorial experiment, arranged in randomized complete block design with 3 replications, was done in the research station of Kahnoj. Factors in this experiment included four nano fertilizer (0, 1, 2 and 3 /1000) and N levels in four levels (0, 50, 100 and150 Kg N/hac). Analysis of variance showed significant effects of N and nano fertilizer on all characters. Maximum plant height, amount of capsul and biological yield was obtained in 150 Kg nitrogen and minimum level of these parameters was in 0 Kg N. In nano fertilizer yield per plant, amount of capsul and biological yield, was maximum in (3/1000) treatment, while plant height was maximum in 2/1000 treatment. N fertilizer together with nano fertilizer increased 1000 kernel weight, grain yield and biological index, in comparison with none fertilizer treatment and the highest amount of this parameters was in 100 kg N and 2/1000 nano fertilizer treatments. For the oil percent maximum average was 58.5% more than none N fertilizer treatment and maximum amount of oil between nano fertilizer was obtained in 2/1000 and the minimum was in none nano fertilizer usage. Generally, it can be said that the effects of nitrogen and nano fertilizer increased availability of nutrients, which is required by plant, and caused the best growing condition for the sesame Manuscript profile
      • Open Access Article

        2 - Effects of utilizing manure, vermicompost, chemical fertilizer, Triple superphosphate and urea in agriculturing flax plant (Linum usitatissimum L.)
        laila bahari shahab madah hosaini hamed bekhrad fateme niknam
        To investigate effects of utilizing manure, vermicompost, triple superphosphate and urea chemical fertilizer in agriculturing flax plant, a split plot experiment, designed on randomized complete block with three replications, was conducted at research farm of agricultur More
        To investigate effects of utilizing manure, vermicompost, triple superphosphate and urea chemical fertilizer in agriculturing flax plant, a split plot experiment, designed on randomized complete block with three replications, was conducted at research farm of agriculture faculty of Valieasr University of Rafsanajn. Main plots were four combinations of fertilizers including: nitrogen+phosphorus nitrogen+phosphorus+cattle manure (NPM), nitrogen+phosphorus+cattle manure+sulphur (NPMS) and vermicompost and subplots were four flax seed genotype as Kurdistan Native, E37, L22 and L18. Results showed that NPM and NPMS decreased the height of plant. Oil yield in Kurdistan Native, L22 and L18 were equal to NP when vermicompost applied but for E37 was significantly higher. Kurdistan Native had relatively high oil yield in all four fertilizer treatment. This genotype had the lowest leaf area, plant height, biological yield, as well as the shortest growth cycle. It seems that in Kurdistan Native, relatively high partitioning of photo assimilates to economic organs is directed which leads to better regulation of source-sink relations. Since adding cattle manure or sulphur to base level of fertilizer (NP) had inhibitory effects on some vegetative and reproductive traits, it is not suggested to use this fertilizer combination in saline and sodic soils similar to this experiment situation. Reduction in soil osmotic potential or toxic effects of some minerals, e.g. Na may be the cause of these effects. Manuscript profile