STATUS LOGAM BERAT KADMIUM DAN HASIL RIMPANG TEMUIRENG (Curcuma aeruginosa Roxb.) PADA BEBERAPA DOSIS PEMUPUKAN FOSFAT

Jurnal Penelitian Tanaman Industri Pub Date : 2020-07-15 DOI:10.21082/LITTRI.V6N2.2000.44-49

Mono Rahardjo, Rosita Smd, I. Darwati

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Abstract

Status of cadmium and rhizome yield l/temuireng (Cur¬ cuma aeruginosa Roxb.) at by d fferent dosages phos¬ phatefertilizerCadmium is a heavy metal which is for human being. The concentration of Cd in the soil will increase if phosphate fertilizer is applied, because Cd is available in the sediment rock of phosphate as a raw material for phosphate fertilizer. Recently it is said that simplicia of medicinal crops originated from Asia is contaminated with heavy metals. That contamination mainly derives from Ihe environmental growth. Theefore, the research on the status of Cd in rhizomes Curcuma aeruginosa Roxb. due phosphate fertilizer is essential to be conducted. The experiment was conducted in the experimental garden of Research Institute for Spice and Medicinal Crops from August 1997 - June 1998. The experiment used polybags which were illed with 25 kg Bogor dry latosol soil mixed with I kg of rice husk and 2 kg cattle manue It used randomized block design (RBD) with four replications and ive samples each treatment. The treatments were (I) no NPK; and 8 dosages of TSP, (2)0; (3)2.5; (4)5; (5)7.5; (6)10.0; (7)12.5; (8)15.0; and (9)20.0g/ polybag respectively. Each TSP treatments was added with 1 5 g uea and 19 g KCI/ polybag. The plant wee harvested at 8.5 month after planting. The results of experiments showed that application of2.5; 5; 7.5; 10; 12.5; 15; and 20 g/polybag of TSP increased dry weight of simplicia from 24.3- 40%. The content of Cd in rhizomes, produced by plant with 5 up to 20 g TSP fertilizer was 1.181 - 2.756 ppm. The Cd content was higher than tolerance limited value as determined by laws of heavy metal in Japan (I ppm) and WHO (0.24 ppm). While fertilizer teatments of 0 and 2.5 g TSP produced rhizomes with Cd content 0.630 - 0.945 ppm, and it is still under tolerance limited value by Japan, but, higher than WHO laws. Due to high Cd content in rhizomes (1.181 - 2.756 ppm), those simplicia can not be used as row material for medicine.

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不同磷肥用量对镉和根茎产量/温度的影响镉是一种对人体有害的重金属。施用磷肥会增加土壤中Cd的浓度，因为Cd作为磷肥的原料存在于磷酸盐的沉积岩中。近年来有报道称，原产于亚洲的药用作物单叶被重金属污染。这种污染主要来自于环境的增长。因此，对铜绿姜黄根茎中Cd含量的研究。适当的磷肥是必须进行的。试验于1997年8月至1998年6月在香料和药用作物研究所实验园进行。试验采用随机区组设计(RBD)， 4个重复，每个处理5个样品，每处理5个样品，在塑料袋内灌入25 kg茂物干红壤土、1 kg稻壳和2 kg牛粪。(1)不施氮磷钾;8个剂量的TSP， (2)0;(3) 2.5;(4) 5;(5) 7.5;(6) 10.0;(7) 12.5;(8) 15.0;(9)20.0g/塑料袋。每个TSP处理添加15 g尿素和19 g KCI/塑料袋。植株在播种后8.5个月收获。实验结果表明，应用2.5;5;7.5;10;12.5;15;20 g/袋的TSP可使单倍体干重增加24.3 ~ 40%。施用5 ~ 20 g TSP时，根状茎中Cd含量为1.181 ~ 2.756 ppm。镉含量高于日本《重金属法》规定的容许限量(1 ppm)和世界卫生组织(0.24 ppm)。而施用0和2.5 g TSP的根状茎Cd含量为0.630 ~ 0.945 ppm，仍在日本的容许限量范围内，但高于WHO的规定。由于根状茎中Cd含量较高(1.181 ~ 2.756 ppm)，不能作为药材。

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Jurnal Penelitian Tanaman Industri

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