Rahayu, Rusyla Dwi (2022) Dinamika Nitrogen Tersedia Akibat Pemberian Asam Humat Dan Silika Terhadap Serapan Nitrogen serta Pertumbuhan Dan Hasil Tanaman Padi Pada Tanah Berpasir. Undergraduate thesis, UPN "Veteran" Jawa Timur.
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Abstract
Sandy soils have high macropores and low nutrient availability. This condition is caused by the soil matrix which has no negative charge, so that nutrients are easily lost due to washing. Nitrogen loss has been reported to reduce rice production by 6.10%. The research aims to examine the application of humic acid and silica to increase the availability of nitrogen nutrients. Humic acid from compost and silica from rice husk is expected to increase the negative charge of the soil so that can adsorbnutrient ions such as nitrogen. The research was carried out from April to December 2021 in the greenhouse and laboratory of the Faculty of Agriculture, National Development University "Veteran" East Java. The research was structured using a factorial Completely Randomized Design (CRD). The first factor is silica dose with a level of 0 ton/ha, 0.5 ton/ha, 1 ton/ha, and 1.5 ton/ha. The second factor is the dose of humic acid with a level of 0 kg/ha, 20 kg/ha, 40 kg/ha, and 60 kg/ha. Observation parameters include the availability of nitrogen in the soil, nitrogen uptake, growth and yield of rice plants. The results showed that the combination of humic acid with silica had no significant effect on nitrogen uptake, growth and yield of rice plants, but did effect the availability of nitrogen in the soil.
| Item Type: | Thesis (Undergraduate) | ||||||||||||
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| Subjects: | S Agriculture > S Agriculture (General) > S631-667 Fertilizers and Improvement of the soil | ||||||||||||
| Divisions: | Faculty of Agriculture > Departement of Agritechnology | ||||||||||||
| Depositing User: | Rusyla Dwi Rahayu | ||||||||||||
| Date Deposited: | 25 May 2022 02:20 | ||||||||||||
| Last Modified: | 25 May 2022 02:20 | ||||||||||||
| URI: | http://repository.upnjatim.ac.id/id/eprint/6120 |
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