Oktaria, Dwi and Utomo, Muhajir and Afandi, . and Salam, Abdul Kadir (2018) SOIL ORGANIC CARBON IN SOIL FRACTION AND CORN YIELD OF LONG-TERM TILLAGE. In: 6TH INTERNATIONAL WORKSHOP ON CROP PRODUCTION AND PRODUCTIVITY UNDER GLOBAL CLIMATE CHANGE, 03-04 Dec 2018, Bandar Lampung.
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Abstract
Soil Organic Carbon (SOC) in tropical soil is important property for soil sustainability and corn production. Therefore, effort for increasing SOC and corn production in long-term tillage and nitrogen fertilization are important. The aim of this research was to measure SOC content in particle size fraction of long-term tillage systems and N fertilization. Additional aim was to establish the key management to sustain of soil health and corn production. The experiment was a factorial randomized complete block design, with 3 replications. Tillage treatments were No-Tillage (NT), Minimum Tillage (MT), and Intensive Tillage (IT), while N fertilization rate were 0 kg N ha-1 (N0) and 200 kg N ha-1 (N2). It revealed that, before plowing the long-term conservation tillage, SOC of MT was higher than IT but not different than NT. In our study showed that, both of tillage and N fertilization did not increase SOC in particle size fraction. It was found that, SOC in silt fraction was the highest than other fractions. SOC content in silt, sand, and clay fractions were 1.26%, 0.11%, and 0.10%, respectively. After plowing the long-term conservation tillage, corn yield of N2 was higher than N0. Corn yield in N0 and N2 were 4287 kg ha-1 and 6891 kg ha-1, respectively.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | S Agriculture > S Agriculture (General) |
| Divisions: | Fakultas Pertanian (FP) > Prodi Ilmu Tanah |
| Depositing User: | Abdul Kadir Salam |
| Date Deposited: | 02 May 2019 04:22 |
| Last Modified: | 02 May 2019 04:22 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/11436 |
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