Elahe Hasanzade; Mehdi Ghajar Sepanlou; Mohammad Bahmanyar
Volume 36, Issue 1 , September 2013, , Pages 77-85
Abstract
In order to study the effect of potassium and manure fertilizer on yield and concentration of macro elements in leaf and grain of wheat (N-81-18 cultivar) under water stress, a pot experiment was conducted in split plot based on randomized complete design with four replications in 2009-2010 crop years. ...
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In order to study the effect of potassium and manure fertilizer on yield and concentration of macro elements in leaf and grain of wheat (N-81-18 cultivar) under water stress, a pot experiment was conducted in split plot based on randomized complete design with four replications in 2009-2010 crop years. The main factor was inclusive irrigation after depletion of 75, 50 and 25 percent of available water, and the subsidiary factor was inclusive potassium sulfate in three levels (0, 300 and 600 kg/ha) as well as manure fertilizer in three levels (0, 20 and 40 ton/ha). Results indicated that irrigation treatment had a significant effect on grain yield and elements of nitrogen, phosphorous and potassium in leaf and grain at p-1 manure fertilizer and the greatest amount of phosphorous of leaf was observed with consumption of 20 and 40 tons ha-1of manure fertilizer. The maximum amount of grain yield was achieved in irrigation treatment after depletion of 25% available water and usage of 40 ton ha-1manure fertilizer. Grain potassium was increased with the consumption of 300 and 600 kg/ha-1 potassium sulfate.
Akram Ahmadpoor Sefidkoohi; Mehdi Ghajar Sepanlou; Mohammad Bahmanyar
Volume 35, Issue 2 , March 2013, , Pages 97-109
Abstract
In order to investigate the effects of applying three and five continuous periods of municipal solid waste (MSW) with and without NPK chemical fertilizer on the amount of micronutrient uptake by different parts of wheat, a pot experiment was conducted in split plot based on randomized complete block ...
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In order to investigate the effects of applying three and five continuous periods of municipal solid waste (MSW) with and without NPK chemical fertilizer on the amount of micronutrient uptake by different parts of wheat, a pot experiment was conducted in split plot based on randomized complete block design with four replications in 2009. The main plot was a six-fertilizers level including control (without MSW and chemical fertilizer), chemical fertilizers according to soil test (200 kg urea, 150 kg triple superphosphate, and 100 kg K2SO4 per ha) and 4 levels of MSW (20 and 40 ton.ha-1 without fertilizer and with half of fertilizer) and the sub plot was applying 3 and 5 continuous periods of MSW. The results showed that, by increasing the amount and periods of applying MSW, the concentration of Zn and Mn in flag leaf and straw of wheat increased, with the maximum amount of obtained with the application of five consecutive periods 40 ton MSW enriched with half of NPK fertilizer. Also, by increasing the amount of applying MSW, concentration of Fe increased in flag leaf. Dmoreoven, in wheat seed, the most amount of Zn, Fe and Mn was observed by applying 5 consecutive periods 40 ton MSW enriched with 1/2 fertilizer in soil. Meanwhile, by increasing the amount of applying MSW in soil, the concentration of Cu increased in flag leaf, straw and kernel wheat flag leaf, shoot and seeds, and the effects of periods of application of MSW was just showed in wheat seeds.