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THE OPTIMUM FIRST APPLICATION OF UREA FOR SOME SORGHUM CULTIVARS | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 45, Issue 2, 2014, Pages 151-156 | ||
| Authors | ||
| S. S. Cheyed; M. H. Hashem; S. Qasim | ||
| Abstract | ||
| The research aims to determine the most appropriate date to add the first batch urea fertilizer for crop sorghum, carried out an experiment in seed Technology Laboratory of the Department of field crop science_ college of Agriculture_ University of Baghdad during the autumn season of 2013. Used for this purpose dishes germination dimensions of 30×40 cm containing afixedamount of washed silica sand, planted three varieties of sorghum (Rescue and Rabeh and Undersecretary) four dates added urea (when agriculture and after 5, 10 and 15 days from sowing). The dishes were distributed randomly in the order factorial experiments raindomized complete block design with four replications. The results showed the existence of significant effect of the global study and the overlap between them in all traits. Undersecretary product has given the highest average rate of emergence and fresh weight and dry weight (87.83% and 236.4 mg and 20.69 mg) respectively, while breed rescue initiatives gave the highest average for the content of seeding nitrogen 4.63%. the results showed the superiority date added after 15 days from sowing and emergence in the proportion of wet and dry weight and nitrogen content of seeding (20.99%, 311.2 mg, 36.69 mg and 6.33%). Conclude from the results of this study that the addition of the first batch of urea fertilizer has anegative impact on the number of seeding emerging from the soil and the increased rate of longer we later added the first batch of compost. As the seedling weight of wet and dry as well as the content of the element nitrogen seedling has increased with the delay in the start data of the first compost therefore we recommend not to start the first batch of urea fertilizer for agriculture when their negative impact on seedling emergence and the the loss for much of it due to the delay in washing and members of delay seedling basic kaljdhur differentiation and proliferation soil to help them to increase their efficiency in the absorption of this element. | ||
| Keywords | ||
| EMERGENCE; seed quality; nutrients; endosperm | ||
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