Pengaruh Pemberian Biochar dan Pupuk Kandang terhadap Beberapa Sifat Tanah, Hasil dan Pertumbuhan Padi (Oryza sativa L) Pada Tanah Sawah Irigasi Tercemar Limbah Tambang Emas

AZIZAH, NUR AZIZAH Pengaruh Pemberian Biochar dan Pupuk Kandang terhadap Beberapa Sifat Tanah, Hasil dan Pertumbuhan Padi (Oryza sativa L) Pada Tanah Sawah Irigasi Tercemar Limbah Tambang Emas. PENGARUH PEMBERIAN BIOCHAR SEKAM PADI DAN PUPUK KANDANG TERHADAP BEBERAPA SIFAT TANAH, PERTUMBUHAN DAN HASIL TANAMAN PADI (Oryza sativa L) PADA TANAH SAWAH IRIGASI TERCEMAR LIMBAH TAMBANG EMAS.

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Abstract

THE EFFECT OF GIVING BIOCHAR AND ORGANIC FERTILIZER ON SOME OF THE SOIL PROPERTIES, GROWTH AND RESULTS OF RICE (Oryza sativa L.) IN IRRIGATED PALM OIL PLANTED BY GOLD MINE WASTE ABSTRACT Gold mining causes many problems in the soil, especially the physical and chemical properties of the soil. Such as low soil pH, low soil organic matter content, low nutrient content and high heavy metal content in the soil. Heavy metals can be toxic to plants, causing plants to not grow optimally and have low yields. Biochar and manure are known to improve some of the properties of the soil damaged by mining. This study aims to determine the effect of giving biochar and manure on some soil properties, growth and yield of rice in irrigated paddy fields contaminated with gold mine waste. This research was carried out in a greenhouse with a completely randomized design method (CRD), using a pot with a spacing of 30 x 30 cm. Consists of 10 combinations of treatments and three replications. The results showed that the 10 ton / ha biochar treatment and 8-10 ton / ha manure were most effective in improving some soil properties. The treatment of 10 tons / ha of biochar and 8-10 tons / ha of manure can increase soil pH from 4.05 to 8.25; soil organic matter 38.64%; the average heavy metal content dropped by 50% and nutrients increased by an average of 60% compared to treatment without the provision of biochar and manure. Keyword : Biochar, Organic Fertilizer, Soil Fertility

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