Activation Unproductive Coal Powder with Urea to Improve Chemical Properties of Ultisols
| Main Authors: | Herviyanti, -; Dept. of Soil Science, Fac.of Agriculture Andalas University, Prasetyo, Teguh Budi; Dept. of Soil Science, Fac.of Agriculture Andalas University, Juniarti, -; Dept. of Soil Science, Fac.of Agriculture Andalas University, Rezki, Dewi; Dept. of plantation cultivation, Fac.of Agriculture Andalas University |
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| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
International Journal on Advanced Science, Engineering and Information Technology
, 2017
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| Subjects: | |
| Online Access: |
http://insightsociety.org/ojaseit/index.php/ijaseit/article/view/2152 http://insightsociety.org/ojaseit/index.php/ijaseit/article/view/2152/pdf_429 |
Daftar Isi:
- This study consisted of two stages of the experiment, in which the first phase was aimed to test the level of activity unproductive coal powder (sub-bituminous) activated with urea (CO(NH2)2). Experiment II was aimed to select the dose of Urea was right in fixing chemical properties sub-bituminous powder to be applied to mineral soil acidic (Ultisols). Experiment I form into activation powder sub-bituminous (50 g) with urea at a dose of 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 %. The second experiment was shaped non-factorial consisting of 15 treatments combined with two replications. Combination treatments consisted of sub-bituminous Powder doses: 0.5; 1; and 1.5% by the weight of the soil and the dose activator defined based on the results of phase I trials of 0; 2.5; 5; 7.5 and 10% by weight of powder sub-bituminous. The results showed the higher amounts of activator used, the higher pH and CEC sub-bituminous Powder and increasing from emerging functional groups. The use of sub-bituminous Powder was activated with urea can improve some soil chemical properties such as increasing the pH, available P, organic-C, CEC and reducing Al-exch of Ultisols.