<![CDATA[ABSTRACTThe aims of research was to study the effect of contaminated soil with tannery industrial wastesludge, and absorption level of chromium by the green mustard. The experiment was carried out in Kayen, Sleman, Yogyakarta for 3 months. The form of a pot experiment using a full factorial design 2x3 and 2 additional treatments as a control was set out in Completely Randomized Design (CRD), using 15 units of pots as replicates. The first factor consists of two varieties of mustard, which is kailan (chinesse kale) and spoon mustard greens (pak choy green). The second factor consists of 3 doses of leather tanning industry waste, i.e 500 mg chromium/kg soil, 1000 mg chromium/kg soil, 1500 mg chromium/kg soil. Control treatment was the planting of two varieties of mustard without the addition of sewage sludge. Preparation of sewage sludge was carried out by mixing the sewage sludge into the planting medium consisting of a mixture of soil, compost and manure treatments in accordance with the treatment. Observations made by harvesting the plants at the age of 3 and 6 weeks after planting for the next shoots and roots of plants and chromium content of growing media was analyzed. The results showed that the accumulation of chromium in the roots of plants was greater than in the plant canopy for the two types of mustards either good harvested at the age of 3 or 6 weeks after planting, and the content of chromium in plant tissues of mustard as part of vegetable that generally consumed exceeds the threshold of human daily consumption (0,035 mg/kg daily consumption). ABSTRAKPenelitian bertujuan untuk mempelajari pengaruh tanah yang terkontaminasi limbah industri penyamakan kulit terhadap sifat dan tingkat penyerapan krom pada tanaman sawi. Penelitian dilaksanakan di Kayen, Sleman, Daerah Istimewa Yogyakarta selama 3 bulan. Percobaan dengan pot menggunakan rancangan faktorial 2x3 lengkap dan 2 perlakuan tambahan sebagai kontrol yang diatur dalam Rancangan Acak Lengkap (RAL), dengan 15 unit pot sebagai ulangan percobaan. Faktor pertama terdiri atas 2 varietas sawi, yaitu kailan (chinesse kale) dan sawi sendok (pak choy green). Faktor kedua terdiri atas 3 aras takaran limbah industri penyamakan kulit, yaitu 500 mg krom/kg tanah, 1000 mg krom/kg tanah, 1500 mg krom/kg tanah. Perlakuan kontrol adalah penanaman 2 varietas sawi tanpa pemberian lumpur limbah. Pemberian limbah dilakukan dengan mencampur lumpur limbah ke dalam media tanam yang terdiri atas campuran tanah, kompos dan pupuk kandang sesuai dengan variasi perlakuan. Pengamatan dilakukan dengan memanen tanaman saat umur 3 dan 6 minggu setelah tanam untuk selanjutnya tajuk dan akar tanaman serta media tanam dianalisa kandungan kromnya. Hasil penelitian menunjukkan bahwa akumulasi krom di bagian perakaran tanaman lebih besar dibandingkan di bagian tajuk tanaman untuk kedua jenis sawi baik pada umur panen 3 maupun 6 minggu setelah tanam ternyata kandungan krom dalam jaringan tanaman sawi bagian tajuk yang lazim dikonsumsi melebihi ambang batas konsumsi harian manusia yang ditetapkan sebesar 0,035 mg/kg per hari.]]>
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