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BAKU MUTU ARSEN PADA TANAH INCEPTISOL GROBOGAN DENGAN TANAMAN INDIKATOR PADI Wahyu Purbalisa; Anik Hidayah; S Sukarjo
Jurnal Tanah dan Sumberdaya Lahan Vol. 5 No. 1 (2018)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (248.824 KB)

Abstract

Farmers use pesticides intensively in the cultivation of rice. The use of organic and inorganic fertilizers give in large quantities. Pesticides, organic and inorganic fertilizers contain heavy metals arsenic, so the provision of large amounts will accumulate in the soil. In addition to nutrients, rice plant tissue will absorb heavy metals including arsen. Indonesian government has implemented a quality standard of arsen in cerealia by 0.5 mg kg-1. This study was aimed to obtain quality standard of arsenic in an Inceptisol at planting of rice. Research conducted at the scale of pot to contaminate soil planted rice with rows 0 mg kg-1, 15 mg kg-1, 30 mg kg-1, 60 mg kg-1. Data observed that plant growth, yield and content of arsenic in the soil and plant tissue. Agronomic parameters and yield components performed statistical analysis of variance followed by Tukcey test. Growth and crop yield based on statistical analysis are significantly different. The quality standard of heavy metals on soil done by regression analysis between the content of arsen in the soil and rice seed. By incorporating quality standards of arsenic on the rice on the regression equation, obtained the quality standard of arsen in the soil. The analysis results obtained that the quality standards arsenic in an Inceptisol of Grobogan in the soil planting of rice of 17.5 mg kg-1.
Pengaruh Biochar, Kompos dan Pupuk Hayati Terhadap Pertumbuhan dan Produksi Tanaman Bawang Merah Varietas Bima Brebes Cicik Oktasari Handayani; Triyani Dewi; Anik Hidayah
Jurnal Hortikultura Indonesia (JHI) Vol. 12 No. 3 (2021): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jhi.12.3.198-203

Abstract

The planting of shallots in the rainy season in dry land and highlands usually face pests and diseases problem. The purpose of this study was to determine the effect of biochar, compost and biological fertilizers on the growth and yield of the Bima Brebes variety of shallots that were cultivated in the highlands. Compositional materials used for compost include manure, sugar cane cake, bran, lime, molasses, EM4 and water. The biochar is made from corn cobs and the biological fertilizer used is a biological fertilizer that has been traded under the trademark Actino. This research was conducted in Igirklanceng Village, Sirampog District, Brebes Regency. The experiment used a Randomized Block Design (RAK) with 3 replications. The treatments given were consisted of the ameliorant types, including of 8 treatment, namely control (T0), compost (T1), biochar (T2), biochar+compost (T3), biological fertilizer (T4), biochar+biological fertilizer (T5), compost+biological fertilizer (T6), biochar+compost+biological fertilizer (T7), farmer treatment (T8). The results of this study indicate that the application of compost, biochar and biological fertilizer (T7) can increase the growth of shallot plant , especially in the number of leaves by 19.05% compared to the control. The shallot wet weight and dry weight of tubers per plot were 36.60% and 25.14% higher than the control treatment. The results revealed that Bima Brebes shallot variety is not suitable for planting in the highlands because it produces the small tubers.