Widowati, Widowati and Asnah, Asnah Similarity Biochar Can Enhance Potassium Fertilization Efficiency and Economic Feasibility of Maize Cultivation. Journal of Agricultural Science, Canada.
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5. Biochar Can Enhance Potassium Fertilization Efficiency and Economic Feasibility of Maize Cultivation.pdf - Similarity Download (1MB) | Preview |
Abstract
Field experiments were conducted to study the effect of biochar on potassium fertilizer leaching and uptake, efficiency and effectiveness of K fertilization, and economic viability of farming maize. Thirty tons ha-1 of biochar prepared from organic waste was applied to an Inceptisol. The experiment was arranged in a randomized block design with 7 treatments, namely control (without biochar and KCl), K1 (200 kg ha-1 KCl), BK0 (biochar, without KCl), BK1/4 (biochar + 50 kg ha-1 KCl), BK 1/2 (biochar + 100 kg ha-1 KCl), BK 3/4 (biochar + 150 kg ha-1 KCl), and BK1 (biochar + 200 kg ha-1 KCl) and three replicates for each treatment. The results suggest that biochar could replace and reduce KCl fertilizer. Biochar application increased the availability of nutrients by 69-89% for K+, 61-70% for Ca++, 39-53% for N total, 179-208% for P, and 14-184% for K.The results showed that the sole application of biochar increased maize production (6.24 Mg ha-1) by 14% compared sole application of KCl fertilizer (5.45 Mg ha-1). In contrast, dual application of biochar and 75% lower dosage of KCl fertilizer application increased maize production by 29%. Application of biochar and KCl fertilizer at the rate of 50 kg ha-1 resulted in the highest relative agronomic effectiveness (137%) and K fertilizer efficiency (18%). This application rate was also superior both technically and economically as assessed in terms of production (7.02 Mg ha-1), value of sales (revenue; IDR 19,305 million ha-1), income (IDR 8,663 million ha-1), and economic feasibility (R/C, 1.8).
| Item Type: | Other |
|---|---|
| Subjects: | S Agriculture > S Agriculture (General) |
| Depositing User: | Mrs Asnah Asnah |
| Date Deposited: | 02 Jun 2022 01:34 |
| Last Modified: | 02 Jun 2022 01:34 |
| URI: | http://repository.unitri.ac.id/id/eprint/2624 |
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