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UJI EFEKTIVITAS BEBERAPA JENIS ARANG AKTIF DAN NAUNGAN PADA TANAMAN SAWI PAHIT MENGGUNAKAN TANAH LAHAN BEKAS PENAMBANGAN EMAS Suryadi, Uray Edi; Raharjo, Dwi; Mustamir, Elly
PedonTropika Vol 2, No 1 (2016)
Publisher : PedonTropika

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Abstract

This study aims to determine the effect of shade and effectiveness of active charcoal derived from the raw material of palm shells and rice husks to absorb heavy metals Hg and Cu in bitter mustard / Chinese mustard plants (Brassicacea juncea). The mustard bitter in polybags with planting medium on the ex gold mining soils. The study design using split plot design, with the main plot factors are the type of the palm shells active charcoal (A1), and the rice husk active charcoal (A2). As a subplot factors are shade, that using shading net, consisting of 50% shade (P1), shade 60% (P2) and a shade 75% (P3). The results showed that the combination of 50% shade and active charcoal from shell palm oil can help the absorption of Cu and Hg at 0.92 ppm Cu and 5.11 ppb Hg in bitter mustard plant roots, as well as 0.42 ppm Cu and 2.96 ppb Hg on its leaves. The combination of 60% shade and activated charcoal from rice husk can help the absorption of Cu and Hg 0.67 ppm Cu and 4.11 ppb Hg in bitter mustard plant roots, as well as 0.23 ppm Cu and 4.09 ppb Hg on its leaves. Whereas 70% shade combinations and active charcoal from rice husk can help the absorption of Cu and Hg 0.57 ppm Cu and 4.89 ppb Hg in bitter mustard plant roots, as well as 0.13 ppm Cu and 4.75 ppb Hg on its leaves.Keywords : active charcoal, bitter mustard, Cu, ex PETI soil, Hg, shade
HASIL OKRA DENGAN PEMBERIAN ABU TEMPURUNG KELAPA PADA MEDIA GAMBUT ., Surachman; Mustamir, Elly
AGROISTA : Jurnal Agroteknologi Vol 2, No 2 (2018)
Publisher : AGROISTA : Jurnal Agroteknologi

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Abstract

The research aims to find out the best doses of coconut kneecap ash to the growth and yield of okra plant on peat soil. This study was conducted at the experimental sites of The Agricultural Faculty, Tanjungpura University, Pontianak from March 27th to May 24th 2017.? The location lies on about 2 meters above sea level. This research used the completely randomize design (CRD) with 5 treatments and 5 replications. Each experiment unit consisted of 4 sample plants. The treatments were the coconut kneecap ash with 5 doses levels e.i. a1 = 1240 g/polybag, a2 = 1260 g/polybag, a3 = 1280 g/polybag, a4 = 1300 g/polybag, a5 = 1320 g/polybag. The result shows that the ash doses significantly influence the growth and yield of okra plant on the peat soil. The dose of the 1300 g/polybag is the best treatment on the shoot weight (4,75 g), the root volume (15,99 ml), the total leaf area per plant (37,49 cm2), flowering period (34,13 days), the number of fruit per plant (11,73 fruit) and the weight of fruits per plant (256,60 g). Keywords : Coconut kneecap ash, peat soil, okra plants