Showing 3 results for Nutrients.
M. R. Tadayon,
Volume 12, Issue 45 (10-2008)
Abstract
In order to investigate the effect of sugar plant effluent on shoot solute percentage, yield components and grain yield of two wheat cultivars, a two year field experiment was conducted on a farm near Eghlid sugar plant during 2004-2005. Treatments consisted of two wheat cultivars (Alamot and Zarin) and two irrigated treatment: irrigation with effluent and irrigation with spring water (control). The statistical design was a completely randomized factorial with three replications. The results showed that under effluent treatment, nitrogen, phosphorus and calcium percentage increased in shoot, and Fe, Mn, Zn, Cu and B concentration decreased. However, effluent treatment had not any significant effect on K, Mg and S concentration. The results showed that N percentages in Alamot and Zarin cultivar under control treatment were 2.41 and 2.54% and under effluent treatment were 3.28 and 3.41%, respectively. P percentages under control treatment were 0.42 and 0.47% and under effluent treatment were 0.46 and 0.51%, respectively. Ca percentages under control treatment were 0.29 and 0.32% and under effluent treatment were 0.46 and 0.51%, respectively. In both years, the lowest number of tiller, number of spike, number of kernel per spike, thousand kernel weight, grain yield and harvest index were obtained from effluent treatment in the two wheat cultivars whereas this reduction was higher in Alamot than Zarin cultivar. In Alvand and Zarin cultivars, the lowest number of tiller per plant with 2.33 and 2.50, number of spike per plant with 1.83 and 1.92, number of kernel per spike with 31.67 and 32.50, grain yield with 5233 and 5532 kg ha-1 and harvest index with 32.03 and 33.53% and water productivity with 0.72 and 0.75 kg m-3 were respectively obtained from effluent treatment compared to control. Thus, the results showed that using sugar plant effluent could decrease grain wheat quality and wheat grain yield.
E. Ahmadpoor Dehkordi, M. R. Tadayon, A. Tadayon,
Volume 19, Issue 73 (11-2015)
Abstract
In order to evaluate the effect of urban wastewater and different fertilizer sources on macro and micro nutrients' concentration and shoot dry weight of sugar beet, a field experiment was arranged as a split plot in RCBD design with three replications at Research Station of Shahrekord University in 2013. The main factors included irrigation with urban wastewater at 2-4 leaf stage and 8-12 leaf stage, and irrigation with normal water (control). The four types of fertilizer included sheep manure, spent mushroom compost, chemical fertilizer and no fertilizer (control) in the sub-plot. The results showed that the plot irrigated with urban wastewater at 8-12 leaf stage significantly increased leaf number and shoot dry weight of sugar beet compared to the plot irrigated with tap water. Besides, the plot irrigated with urban wastewater at 8-12 leaf stage had a significant effect on the elements of N, P and K concentration in shoot dry weight of sugar beet, but the plot irrigated with urban wastewater did not significantly affect the elements of Fe and Zn concentration. From among the fertilizer treatments, the maximum shoot dry weight and leaf number per plant belonged to the application of sheep manure and also the highest elements of Fe and Zn concentrations belonged to the treatment of spent mushroom compost.
A. Abdollahi, M. Norouzi Masir, M. Taghavi, A. Moezzi,
Volume 24, Issue 2 (7-2020)
Abstract
Nowadays, one of the ways to confront with the micronutrients deficiency is application of Nano materials to increase the availability of elements such as zinc for plants. Therefore, this study was conducted to investigate the effect of functionalized iron oxide nanoparticles and zinc sulfate chemical fertilizer on the zinc chemical forms in soil solution phase and its correlation with zinc concentrations and uptake in wheat. This study was carried out in a completely randomized design with three replications. Treatment consisted of functionalized iron oxide nanoparticles of Hydroxyl (OH), Carboxyl (COOH) and Amine (NH2), each at three levels (100, 200 and 300 mg.kg-1), ZnSO4 (40 kg.ha-1) and Control (without using iron oxide nanoparticles). At the end of the cultivation period, soil chemical properties such as pH, soil available zinc and dissolved organic carbon and concentrations and the uptake of zinc in plant were measured. The results showed that pH, available zinc and dissolved organic carbon content of soil solution were significantly affected by the treatments. The results obtained from the Visual MINTEQ Geochemical model showed that the highest amount of the free form of zinc (Zn2+) was obtained at the level of 300 mg.kg-1 of carboxyl iron oxide nanoparticles. Also, the experimental treatments significantly influenced the concentration of Zn-DOM species. The positive and significant correlation between Zn+2 and Zn- DOC species with the concentration and total Zn uptake of wheat indicated that these pools of Zn could be liable species in soil. The results of this study, therefore, showed that the application of functionalized iron oxide nanoparticles could help to improve soil conditions in order to increase the zinc availability for plants.
