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Showing 2 results for Silicon
Mehrnaz Zarei, Hormoz Fallah Amoli, Yosef Niknezhad, Davood ,
Volume 13, Issue 49 (3-2021)
Abstract
So far, researchers' efforts to increase the quantity and quality of agricultural products in the country have been slightly successful by improving the formulation of conventional chemical fertilizers. In order to investigate the optimization of the nutritional quality of rice under the effect of nano fertilizers in different irrigation conditions, the present experiment was carried out as a factorial split plot in a randomized complete blocks design with three replications in two cropping years 2016-2017 in Sari. Treatments include two cultivars of Rice (Shirodi and Hashemi) as the split factor and four stages of irrigation cut-off (control or permanent irrigation during the growing period, one day after the disappearance of water from the soil surface, three days after the disappearance of water from the soil surface and five days after the disappearance of water from the soil surface) as a sub-factor and three levels of nano-fertilizer foliar application (nano silicon, zinc nano oxide and nano silicon + zinc nano oxide) were as factorial. The results showed that the energy production traits of grain, moisture, carbohydrate, fat, vitamin B1, vitamin B2, vitamin B3 were significantly affected by foliar application of nano-fertilizer at a probability level of one and five percent. The results of comparing the mean of the triple effect of grain yield showed that in Shiroodi cultivar with permanent irrigation treatment during the growing stage with zinc oxide nano consumption equal to 7.529 tons per hectare and the lowest in Hashemi cultivar in the five days after disappearance water from the soil surface with the application of nano silicon was obtained equal to 4.243 tons per hectare. In general, the results showed that the application of nano zinc oxide and nano silicon in the conditions of irrigation cut-off has a positive effect on the quantitative and qualitative characteristics of rice.
Mr Payman Yari, Dr Babak Pasari, Dr Asad Rokhzadi, Dr Khosro Mohammadi,
Volume 14, Issue 56 (3-2023)
Abstract
In order to study the vegetative characteristics, yield and seed quality of canola as influenced by silicon, sulfur and Tecamin flower, an experiment was conducted in in the farmer’s condition in the Darzian, 12 km far from Marivan during the two consecutive growing seasons 2017-18 and 2018-19 in the form of spilit- split plots in a randomized complete block design with three replications. In the main plot, silicon foliar application at two levels (0 and 2 kg/ha), in the sub-plot, sulfur foliar application at three levels (0, 1 and 2 liters per hectare) and also in the sub-sub plot, foliar application of reproductive growth biostimulant of Tecamin flower at three levels (0, 1 and 2 liters per hectare) were considered. The results of combined analysis showed that stem weight under the influence of the year showed a significant difference at the level of 5%. Silicon application affected significantly the number of axillary stems, pod weight, pod length, grain weight and seed protein and Tecamin foliar application also affected significantly all studied traits such as plant height, first pod height from the ground, number of axillary stems, stem weight, pod weight, pod length, grain weight, grain yield, oil and protein seed. Also the mentioned traits except plant height, number of axillary stems and pod length affected significantly by sulfur. Based on finding, silicon (2kg/ha) and sulfur and Tecamin (2L/ha) increased the studied characters. In this study sulfur and Tecamin increased the grain yield as: 7.42 and 14.12% compared to control, respectively. Protein seed significantly increased by silicon as 0.66%. Also oil and protein seed increased by 2 litre sulfur (3.33-3.34%) and 2 litre Tecamin (1.2-1.31%). Based on the interaction effects, silicon and sulfur foliar application as 2 L/ha were increased the oil seed by 4.03%. Also seed protein increased by 5.23% in second year by silicon and sulfur and Tecamin (2L/ha). Therfore, according to the effects of the used treatments on the seed yield and quality increasing and considering the costs of preparation and foliar application, the utilization of sulfur and Tecamin flower as 2L/ha is recommended in similar climatic condition and in canola cultivation.
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