Suwignyo, Rujito Agus and Wijaya, Andi and Sihombing, Hesty and Gribaldi, Gribaldi (2012) Modifikasi Aplikasi Unsur Hara untuk Perbaikan Vigorasi Bibit Padi dalam Cekaman Terendam. Journal of Suboptimal Lands, 1 (1). pp. 1-11. ISSN 2252-6188
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Abstract
Farmers of rice cultivation in swampy land face the problem of high water levels during the early phase of plant growth, so that seedling stage is a risky period of plant under stress submerged. This study was aimed to obtain a method to increase rice seedling tolerance to submergence stress through improving fertilization method and rice variety. The experiment was conducted at Department of Agronomy Faculty of Agriculture, Sriwijaya University, starting from July to August 2010. The experimental design used was factorial completely randomized design with three replications. The factor consists of rice varieties (Inpara 3, Inpara 4, Inpara 5, BR 11 sub-1, IR 42, Rutti, Uffa, and Serendah Kuning), and fertilization treatment (NPK at planting without submergence; NPK with N at 7 days prior to submergence; NPK with N at one day after submergence; NPK + manure with N at 7 days prior to submergence; NPK + Manure + Si + Zn with N at 7 days prior to submergence; and NPK + Manure + Si + Zn with N at one day after submergence). The results showed that application of the proper nutrients can increase rice seedling vigor under submerged stress. At nursery stage, application of NPK, Manure, Si and Zn, with nitrogen given after submergence will be able to improve seedling vigor after recovery period. Submergence stress tolerant varieties showed higher ability to survive under submergence stress, and Inpara 4, Inpara 5, and BR11 Sub-1 performed better than Inpara 3. Serendah Kuning showed a better response to submergence stress than other local varieties. Key words: Rice, Submerged stress, Seedling vigor, Fertilizer application
| Item Type: | Article |
|---|---|
| Subjects: | S Agriculture > S Agriculture (General) > S1-(972) Agriculture (General) |
| Divisions: | 05-Faculty of Agriculture > 54204-Agronomy (Agricultural Sciences) (S1) |
| Depositing User: | Dr. Rujito Agus Suwignyo |
| Date Deposited: | 10 Oct 2019 02:48 |
| Last Modified: | 10 Oct 2019 02:48 |
| URI: | http://repository.unsri.ac.id/id/eprint/10492 |
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