Abstract
In order to develop horticultural commodities, especially for shallots (Allium ascalonicum L), Central Kalimantan province attempts to develop the areas as new agricultural centers on sub-optimal lands. Peatlands have been recognized as potential land for agriculture and shallot development has been carried out since 2013. For shallot, KCl fertilizer plays role in facilitating photosynthesis process, growth plant at the starting level, strengthen the stem and reduce yield decay. The objective of this study was to determine the effect of addition of KCL fertilizer on growth and productivity of shallots (Allium ascalonicum L) in peatlands. This study was conducted in Palangka Raya starting from August 2019 to December 2019. Statistical approach used randomized block design (RBD) with 5 treatments and 4 replications. The treatments given involved without fertilization K0 = 0 kg/ha, K1 = 50 kg/ha, K2 = 100 kg/ha, K3 = 150 kg/ha, K4 = 200 kg/ha. Several parameters observed included plant height, number of leaves, number of tillers, weight of wet biomass, dry biomass and bulb weight. The results showed that the application with addition of KCl with dosage of 150 kg/ha showed a higher yield and it was significantly different from other KCl dosage treatments.
Highlights
Shallots (Allium ascalonicum L), classified into Aggregatum group, is plant that can be used for spice for various dishes in various countries, especially in Indonesia
Peatlands located in Palangka Raya where the study take place, has a fairly high-water content of 134.70%
Palangka Raya with total areas of 247,121 hectares consisted of two land typologies i.e., drylands and wetlands
Summary
Shallots (Allium ascalonicum L), classified into Aggregatum group, is plant that can be used for spice for various dishes in various countries, especially in Indonesia. In Indonesia, this plant is included as the ten prime horticultural commodities and the production need to be increased in order to fulfil demand in line with the increasing population. Shallots is considered as high-value commodity category, so that many farmers cultivate this plant as a source of income while at the same time contribute to regional economic development. Shallots can grow both in lowlands and highlands (0-900 meters above sea level) with rainfall of 300-2500 mm/year and temperatures of 25oC - 32oC [1].
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