V. Weisany; S. Rahimzadeh; Y. Sohrabi
Abstract
Fertilizer management is utmost important factor in success of pharmaceutical crops cultivation. Application of biological fertilizers is important in production of these plants with the aim of elimination or significant reduction of chemical inputs and also increase of soil fertility and improvement ...
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Fertilizer management is utmost important factor in success of pharmaceutical crops cultivation. Application of biological fertilizers is important in production of these plants with the aim of elimination or significant reduction of chemical inputs and also increase of soil fertility and improvement of plant growth and quality. Therefore, an experiment was conducted on basil (Ocimum basilicum L.) in greenhouse of Agriculture Faculty of Agriculture of Kurdistan University. A complete randomized design with five treatments and four replications were used. Treatments were nitroxin, biological phosphorus, nitroxin+biological phosphorus, chemical origin of nitrogen+phosphorus and control (no fertilizer). The results indicated significant effect of treatments on the dry weight of total shoots, plant height, number of leaves, leaf dry weight, photosynthesis, transpiration, essential oil content and yield, root dry weight, number of flowering branches and chlorophyll content. But, this effect was not significant on root length, stem dry weigh and sub-stomata CO2. The plant performanced better with application of chemical fertilizer and a mixture of nitroxin and biological phosphorus in terms of the mentioned criteria. Therefore, it could be concluded that biological fertilizers may be considered as a suitable replacement for a lot of chemical fertilizers consumption in sustainable agricultural systems.
S. Rahimzadeh; Y. Sohrabi; Gh. Heidari; A.R. Eivazi; T. Hoseini
Abstract
In order to evaluate the effect of biofertilizers on the yield and quality of Dracocephalum moldavica L. essential oil, a field experiment was conducted at the Western Azarbaijan Agricultural Research Station in 2008. Randomized Complete Block Design was used including 9 treatments and 4 replications. ...
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In order to evaluate the effect of biofertilizers on the yield and quality of Dracocephalum moldavica L. essential oil, a field experiment was conducted at the Western Azarbaijan Agricultural Research Station in 2008. Randomized Complete Block Design was used including 9 treatments and 4 replications. Treatments were nitroxin, biological phosphorus, bio-sulfur, nitroxin + biological phosphorus, biological phosphorus + biosulfur, nitroxin + biosulfur, nitroxin + biological phosphorus + bio-sulfur, chemical origin of nitrogen + phosphorus + potassium and control (no fertilizer treatment). According to the results, the effect of treatments on dry matter yield (leaves), seed and biological yield, percentage and yield of essential oil and thousand seed weight was significant (P<0.01) while it was not significant on harvest index of leaves and harvest index of seed. Means comparison showed that applying chemical fertilizer (NPK) resulted in highest leaves dry matter, seed and biological yield. The highest essential oil content and essential oil yield respectively obtained from nitroxin + biological phosphorus + bio-sulfur and nitroxin biofertilizer. Considering the fact that no significant difference was observed between applying nitroxin and chemical NPK, it can be concluded that applying nitroxin may result in maximum seed and essential oil yield. In all studied traits, application of some biofertilizers was significantly better than control treatment (no fertilizer).
