Soil Chemistry and Yield of Maize as Influenced by Different Levels of Fertilizer in Ex-Tin Land Central Bangka, Kepulauan Bangka Belitung
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Date
2013
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Badan Penelitian dan Pengembangan Pertanian
Abstract
Kepulauan Bangka Belitung is one of the world’s main tin-producing centers. Ex-tin lands have low soil
fertility status, but these lands have a potency to be used as agricultural lands through fertilizing. The aim of this
study was to study the influence of fertilizer application on soil chemistry and yield of maize in ex-tins mining lands
Central Bangka, Kepulauan Bangka Belitung. The study was done in ex-tin mining land in Perlang Village Central
Bangka, Kepulauan Bangka Belitung and was arranged in randomized block design with 3 (three) treatments and
replicated 3 (three) times. The treatments were (1) urea: 200, SP-36: 150, KCl: 100 kg/ha; (2) urea: 250, SP-36: 150,
KCl: 100 kg/ha, and (3) urea: 300, SP-36: 200, KCl: 150 kg/ha. The maize variety used was Lagaligo. The results
showed that the application of fertlizer increased the soil chemistry properties of ex-tin mining land, namely total-N,
soil P, and soil K. The increasing of fertilizer rate significantly increased the growth and yield of maize. The
application of urea: 300, SP-36: 200, KCl: 150 kg/ha gave the highest yield of maize (4.43 t/ha).