Agriculture
Seyed Mohammad Moosavipoor; Hassan Feizi; hossein sahabi; Hamid-reza Fallahi
Abstract
Recognizing the potential role of seaweed in improving saffron yield and the utilization of micronutrient elements like Ca, Mg, Fe, and Mn to enhance stigma yield, an experiment was conducted. The study investigated the impact of foliar spraying of seaweed extract and selected nutritional elements on ...
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Recognizing the potential role of seaweed in improving saffron yield and the utilization of micronutrient elements like Ca, Mg, Fe, and Mn to enhance stigma yield, an experiment was conducted. The study investigated the impact of foliar spraying of seaweed extract and selected nutritional elements on saffron's quantitative and qualitative traits of saffron.This research was conducted, as factorial based on a randomized complete block design (RCBD) with four replications during 2021-2022 in Neishabur, Iran. The first factor consisted of seaweed extract (0 and 2 L.ha-1) and the second factor consisted of foliar application of nutrients including no foliar application (as control), and the defender of some elements including iron (1.5 L.ha-1 containing Fe, N, and amino acids), zinc, boron (1 L.ha-1 containing B and amino acids), manganese (1.5 L.ha-1 containing Mn, Zn and S), magnesium and calcium (2 L.ha-1 containing Ca and N). The use of all nutrients compared to the control (no-nutrients) and the use of seaweed extract compared to no-seaweed application caused an increase in flower and stigma yields. Based on the interaction effects of the experimental factors, the highest number of flowers (68.8 No.m-2) was obtained in the combined application of manganese and seaweed extract, the highest flower yield (33.5 g.m-2) was gained with the combined application of seaweed and boron, and the highest dry stigma yield (0.48 g.m-2) was obtained from the simultaneous application of magnesium and seaweed extract, which were 63.8, 16.7 and 17.0%, more than the control treatment (no-seaweed & No-nutrients), respectively. Without nutrient application, the utilization of seaweed extract resulted in a notable rise in the Picrocrocin content of the stigma by 15.9%, Crocin by 9.5%, and Safranal by 10.6% compared to the absence of seaweed application.Combined consumption of calcium with seaweed increased the content of Picrocrocin and Crocin, while simultaneous application of other nutrients with seaweed did not improve these indices. The highest and the lowest content of Safranal (37.7 and 32.35 absorption at 330 nm) were obtained from magnesium + no-seaweed and control (no-seaweed & no-nutrients) treatments, respectively. Overall, although all of the studied elements combined with seaweed extract improved stigma yield in order to increase stigma yield, application of Mg in combination to seaweed recommended and to enhance saffron quality using seaweed suggested.
Agriculture
Hesam Aryanpour; hossein sahabi; Hassan Feizi; Alijan Salariyan; Amir Salari
Abstract
Cow manure is one of the most commonly used fertilizers in saffron cultivation, but its main problem is the slow process of decomposition and the slow release of nutrients in the short term; leading to over use of chemical fertilizers by farmers. It is expected that with the introduction of nanotechnology ...
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Cow manure is one of the most commonly used fertilizers in saffron cultivation, but its main problem is the slow process of decomposition and the slow release of nutrients in the short term; leading to over use of chemical fertilizers by farmers. It is expected that with the introduction of nanotechnology in the field of agriculture, a suitable solution will be found to improve the absorption time of organic fertilizers. Cattle manure nanoparticles can reduce the decomposition time of cattle manure with higher specific surface area. Therefore, a split-plot design was carried out using two conventional methods of mulching and mixing with soil on the performance of saffron and soil characteristics to compare the performance of conventional chemical fertilizers and cow manure with nano cow manure.The main factor in seven levels (including nano cow manure in two amounts of five and 20 tons per hectare and in two forms of application of mulch and mixed with soil, normal cow manure in the amount of 20 tons per hectare and in two forms of mulch and mixed with soil and no use cow manure) and the sub-factor included NPK chemical fertilizer (at two levels of use and non-use). The results showed that by making cattle manure nanosized, its half-life in the soil decreased from about 36 weeks to 11 weeks. Nano cow manure treatment of 20 tons per hectare mixed with soil showed an increase in dry stigma yield by 43.7, 46 and 57%, respectively, compared to conventional cow manure treatments, chemical fertilizer treatments, and controls. The nano application of cow manure resulted in maintaining more moisture, less mechanical resistance in the soil, and more percentage of nutrients in the plant. In the comparison of the two methods of mulching and mixing, it was observed that in the mulching method, the amount of moisture is higher and the surface mechanical resistance is lower in the soil, and in the mixing method, the amount of nutrients in the leaves is higher. The results showed that in treatments with nano cow manure, the mixed method is preferable to mulch. By making cattle manure nano, using the mixed method instead of mulch and applying higher levels of cattle manure, was reduced the synergistic effect of chemical fertilizers in increasing yield. As in nano cow manure treatment (20 tons per hectare mixed with soil) was not observed significant yield increase due to the addition of chemical fertilizer. Also, nano cow manuew five ton per hectare treatments (mulch and mixture) showed a 22% yield increase compared to conventional cow manure treatments. It is possible to increase the yield by 22% by making cow manure nanosized, along with reducing the consumption of cow manure by 75% in the second year of saffron cultivation.
Hassan Feizi; Ali Hosseini; Hossein Sahabi; Ramin Nazarian
Abstract
For evaluation of response of flower and corm yield of saffron to nanobiologic fertilizer application methods in comparison to cow manure and chemical fertilizer an experiment was conducted in Shadmehr region as randomized complete block design with 10 treatments with four replication during two years ...
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For evaluation of response of flower and corm yield of saffron to nanobiologic fertilizer application methods in comparison to cow manure and chemical fertilizer an experiment was conducted in Shadmehr region as randomized complete block design with 10 treatments with four replication during two years (2014-2015 and 1015-2016). The treatments were 1. Corm inoculation with nanobiofertilizer (Bioumik product of Biozar company), 2. Corm inoculation+use in irrigation water, 3. Corm inoculation+ foliar application 4. Corm inoculation+ foliar application+use in irrigation water, 5. In irrigation water, 6. Foliar application 7. Use of chemical fertilizer (Urea, Ammonium phosphate and Potassium sulphate) 8. Use of cow manure 9. Use of chemical fertilizer +Use of cow manure and 10. Control. Studied traits were corm dry yield, flower dry yield, stigma dry and fresh yield and flower number. Based on result from third year the highest stigma dry yield (about 14 kg/ha) and flower number were achieved in Corm inoculation+ foliar application+use in irrigation water treatment (by 176 % increase in comparison to control) and the highest corm yield was seen in corm inoculation treatment (by 41 more than control). Results showed that the best method for corm improvement was corm inoculation with nanobiofertilizer and for flower improvement it is recommend to use of Corm inoculation+ foliar application+use in irrigation water.
