Kartika, Nanda Ajeng (2024) Pemanfaatan Asam Humat Silika untuk Memperbaiki Beberapa Sifat Kimia Lahan Sawah Terdampak Limbah Industri di Sidoarjo. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Industrial activities can cause soil degradation in surrounding areas and affect agricultural productivity. This study evaluates the effectiveness of silica humic acid as a soil amendment on paddy fields exposed to industrial waste. The experiment used a factorial Completely Randomized Design (CRD) with silica humac acid doses (0, 10, 20, 30, 40 kg ha-1) and three types of industry-contaminated paddy fields (pharmaceutical, animal feed, paper). Parameters measured included pH, organic C, CEC, total N, and available P at 14, 28, 42, and 56 days after application (DAA). Results showed that the effect of silica humac acid doses varied depending on the type of industry. At the pharmaceutical industry site, there was an increase in CEC from 44.34 cmol(+)kg-1 to 52.52 cmol(+)kg-1 and available P from 27.21 ppm to 36.69 ppm at low doses. The animal feed industry site showed that a dose of 20 kg ha-1 provided the best results for soil pH and available P. Meanwhile, the paper industry site required higher doses to achieve significant effects. This study concludes that the effectiveness of silica humic acid as a soil amendment depends on the type of industry and initial soil characteristics.
| Item Type: | Thesis (Undergraduate) | ||||||||||||
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| Subjects: | S Agriculture > S Agriculture (General) > S590-599.9 Soils. Soil science S Agriculture > S Agriculture (General) > S631-667 Fertilizers and Improvement of the soil |
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| Divisions: | Faculty of Agriculture > Departement of Agritechnology | ||||||||||||
| Depositing User: | Nanda Ajeng Kartika | ||||||||||||
| Date Deposited: | 23 Sep 2024 03:25 | ||||||||||||
| Last Modified: | 23 Sep 2024 03:25 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/30168 |
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