List of Articles Biological and chemical fertilizer

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  1 - Effect of Corm Density on Yield and Qualitative Traits of Saffron (Crocus sativus L.) under Different Urea and Biological Fertilizers in Shahr-e-Rey Region
  Alireza pazoki Mohammad Kariminejad Kariminejad Alireza Foladi Targhi
  To study the effect of corm density on yield and qualitative traits of saffron (Crocus sativus L.) under different biological and chemical nitrogen fertilizers, a factorial experiment based on completely randomized block design with 3 replications was done in 2014 at Sh More

  To study the effect of corm density on yield and qualitative traits of saffron (Crocus sativus L.) under different biological and chemical nitrogen fertilizers, a factorial experiment based on completely randomized block design with 3 replications was done in 2014 at Shahr-e-Rey region (Ghomi Abad). The experimental factors were: corm density in 3 levels (60, 120 and 180 corm per square meter) and biological and chemical nitrogen fertilizers in 4 levels (without fertilizer application, 150 kg.ha-1 of Urea, 5 L.ha-1 of Nitroxin and 75 kg.ha-1 of Urea +5 L.ha-1 of Nitroxin). The results indicated that the corm density affects number of daughter corm, fresh daughter corm weight, corm diameter, dry stigma and style weight, dry and fresh flower weight significantly. Mean comparisons also indicated that by increasing corm density from 6o to 180, saffron dry yield of saffron improved by 2.7 fold. However, increasing corm density reduced corm diameter, fresh corm daughter weight and their numbers per square meter. It can be concluded that nitroxin as an organic fertilizer, increases vegetative traits and saffron dry yield (stigma + style weight) to 2.08 kg.ha-1 and highly improves in qualitative traits like Safranal, Picrocrocin, and Crocin. It can be also said that combined use of nitroxin and urea would be an alternative method to reduce application of urea. Manuscript profile
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  2 - The effect of biological and chemical fertilizers on fodder production and dry matter distribution of triticale (X Triticosecale Wittmack)
  Farhad Beiranvand masoud rafiee Ali Khorgami Kazem Taleshi
  In order to study the effect of biological and chemical fertilizers on the performance and transfer of photosynthetic materials of triticale under rainfed conditions, a split plot experiment was conducted based on a randomized complete block design in two cropping years More

  In order to study the effect of biological and chemical fertilizers on the performance and transfer of photosynthetic materials of triticale under rainfed conditions, a split plot experiment was conducted based on a randomized complete block design in two cropping years (2014 and 2015). The tested factors include biofertilizer (main factor) at five levels, control (no use), azotobarvar-1, mycorrhiza, phosphate fertilizer-2, potabarvar-2 and chemical nitrogen fertilizer (urea source) (secondary factor) at four levels, included, control, 50, 100 and 150 kg/ha-1. The results showed that the combination of bio-chemical fertilizer increases the yield of fodder and transfer of materials. The efficiency of dry fodder in the combination of 100 and 150 kg/ha-1 of urea fertilizer with biological fertilizers was 5428, 5668 and 3528 kg/ha-1, respectively. The results showed that the maximum and minimum transfer of photosynthetic substances from vegetative organs to seeds (transfer of dry matter, share of transfer of dry matter to seeds, rate of transfer of dry matter from the stem) changes (634.6 g/plant) and (121%). The general results showed that in rainy conditions, the combined application of biofertilizer with urea during planting will result in the optimal yield of triticale. Manuscript profile