Timotiwu, P.B. and Manik, Tumiar Katarina SHALLOT GROWTH AND YIELD SUPPORTED BY IRRIGATION AND NITROGEN APPLICATION IN UTILIZING DRY LAND AREA IN MESUJI, LAMPUNG PROVINCE. Journal of Science and Climatology. ISSN 14123606 (Submitted)
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Abstract
Shallots (Allium ascolicum L.) are strategic horticultural commodities. Mesuji Regency, Lampung Province, Indonesia has potential dry land of 21,863.5 ha and uncultivated land of 10,325.6 ha which has been dominated by plantation and food crops. Horticulture crops often encounters obstacles such as low soil fertility and limited water. The purposes of this research were: analyzing shallots growth and yield on dry land with different nitrogen fertilization doses and different irrigation volumes and analyzing Mesuji suitability for developing shallot. The treatments were: N0 (without N), N80 (80 kg N/ha) and N160 (120 kg N/ha) and N240 (240 kg N/ha), and irrigation levels: W25 (25% of ET), W50 (50% of ET), W0.75 (75% of ET) and W100 (100% of ET); ET was evapotranspiration rate. Mesuji suitability for shallot growth was evaluated using Standardized Precipitation Index (SPI) compared to Brebes, Central Java as the main shallot producer in Indonesia and potential yield was simulated using AquaCrop model. The simulation gave good yield estimation if water and fertilizers requirement are fulfilled, which was at least 75% of the evapotranspiration and 160 kg/ha N. The SPI showed that Mesuji has similar drought wet events percentage compared to Brebes. Therefore, Mesuji is promising for shallot plantation.
| Item Type: | Article |
|---|---|
| Subjects: | S Agriculture > S Agriculture (General) |
| Divisions: | Fakultas Pertanian (FP) > Prodi Magister Agronomi |
| Depositing User: | TUMIAR K Manik |
| Date Deposited: | 21 Sep 2022 01:51 |
| Last Modified: | 21 Sep 2022 01:51 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/45056 |
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