Elham Jahangiri Nia; Seyed Ataollah Siyadat; Ahmad Koochakzadeh; Mohammadreza Moradi Telavat; Manouchehr Sayyah far
Abstract
In order to study the effect of the usage of vermicompost and mycorrhiza fertilizer usage on yield quantity and quality of soybean cultivar L17 in water deficit stress condition, an experiment was conducted as plots in a split at randomized complete blocks with four replications in Agricultural Research ...
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In order to study the effect of the usage of vermicompost and mycorrhiza fertilizer usage on yield quantity and quality of soybean cultivar L17 in water deficit stress condition, an experiment was conducted as plots in a split at randomized complete blocks with four replications in Agricultural Research Center in 2013 in Khoramabad. The experiment treatments including irrigation in three levels (after 60, 120 and 180 mm evaporation from pan class A pan), vermicompost and mycorrhiza in six levels (non-use of vermicompost and mycorhiza fertilizer, inoculated with mycorrhiza fertilizer, consumption of 5 and 10 t.ha-1 vermicompost , consumption of 5 and 10 t.ha-1 vermicompost with mycorrhiza) were respectively as the main plots and sub. The results of experiment showed that the water deficit stress significantly decreased the number of pods per plant, number of grain per pod, number of grain per plant, 1000 grain weight, biological and grain yield. So that the highest grain yield with the rate of 3216.7 kg.ha-1 was obtained from 60 mm evaporation. The use of combined vermicompost and mycorrhiza fertilizer increased the traits except the number of grain per pods. Grain yield in combined treatment of 5 and 10 t.ha-1 vermicompost and mycorrhiza, respectively increased 23 and 29 percent compared to control. By increasing irrigation distance grain oil content decreased and grain protein content increased. Finally, in order to water_saving irrigation and the cost of inputs and ensuring optimal performance in drought condition, we can use combination of 5 t.ha-1 vermicompost with mycorrhiza.
Khadijeh Roustaie; mohsen Movahhedi Dehnavi; Seyed Ali Khadem; Hamid Reza Owliaie
Abstract
To investigate effects of different super absorbent polymer and animal manure ratios on the quantitative and qualitative characteristics of soybean under drought stress, a split plots experiment was conducted based on randomized complete block design with three replications in Marvdasht, Iran in 2009. ...
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To investigate effects of different super absorbent polymer and animal manure ratios on the quantitative and qualitative characteristics of soybean under drought stress, a split plots experiment was conducted based on randomized complete block design with three replications in Marvdasht, Iran in 2009. Main factor included of irrigation with 50, 100 and 150 mm evaporation from pan class A and sub factor included of control, 40 t.ha-1 animal manure, 200 kg.ha-1 super absorbent polymer, 50 percent super absorbent polymer + 50 percent animal manure, 65 percent super absorbent polymer + 35 percent animal manure and 35 percent super absorbent polymer + 65 percent animal manure. The results showed that, number of pod and grain per plant, 1000 grain weight, grain yield, biological yield, protein yield and oil yield were decreased by drought stress occurrence and were increased with super absorbent polymer and animal manure application. The highest yield (2148.3 kg.ha-1) was obtained in control treatment. Results showed that the combinations of super absorbent polymer and animal manure significantly increased grain, biological, oil and protein yield compared with control. Finally, combination of 35 percent super absorbent polymer and 65 percent animal manure was the best treatment in this experiment.