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All Journal Kultivasi Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian
Qurrohman, Budy Frasetya Taufik
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Agriculture, Biological Sciences & Forestry

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Effectiveness of modified nitrogen fertilizer on soil chemical properties and rice plant growth in the textile industrial area Sudirja, Rija; Rosniawaty, Santi; Rahayu, Sri Muji; Qurrohman, Budy Frasetya Taufik
Kultivasi Vol 22, No 2 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i2.47097

Abstract

The imbalance of nutrients and heavy metal contamination is a challenge in increasing plant growth surround the textile industry area. This study aimed to determine the effectiveness of the dosage of Biologically Agent N Organo Mineral Fertilizer (Biomix-N) as a fertilizer and an ameliorant in paddy soil contaminated with textile liquid waste. This study used a randomized block design of eight treatments with four replications. Parameters observed were soil chemical properties after application of Biomix-N (Na-ex, total N, EC, Cd, and pH), rice plant growth (plant height and tiller number), Cd concentration in the plant, and relative agronomic effectiveness (RAE). Data analysis used analysis of variance, Duncan's test at a 5% level, regression, and correlation analysis. The results showed that Biomix-N 500 kg ha-1 affected the value of EC and total N, while it did not affect Na-ex, Cd, pH and Cd uptake by the paddy plant. Biomix-N fertilization affects the height and number of tillers of rice plants at the age of 70 DAP. Biomix-N fertilization 500 kg ha-1 gave an RAE value of 126-176% compared to the control treatment. The total N content of the soil has a high value of coefficient determinant and correlation (R2= 0.76; R = 0.9) on the growth of rice plants. Applying Biomix-N 500 kg ha-1 equal to 300 kg ha-1 of urea was an effective dose for paddy soil surround the textile industrial area.Keywords: Cadmium, nutrient balance, soil amendment
Silica, Soil and Paddy Plant Productivity Qurrohman, Budy Frasetya Taufik; Suriadikusumah, Abraham; Joy, Benny; Sudirja, Rija
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol. 8 No. 2 (2024): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Juni
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v8i2.11261

Abstract

The element Si is a functional nutrient for rice plants. The loss of available Si from paddy fields every time of harvest is relatively high. The impact of reduced available Si content is a decrease in the efficiency of N, P, K fertilization, plant resistance to abiotic and biotic stresses. Si fertilization on paddy plants in Indonesia has not been implemented massively by farmers. Si fertilization by returning rice straw and husks to the paddy field in compost and biochar is a strategic and economical step to replenish the depleted Si reserves of paddy fields. The response of Si fertilization between one region will differ depending on the concentration of Si-available in the paddy soil. The development of the critical limit of Si available for paddy soil in Indonesia needs to be investigated further so that the critical limit of Si can be used as a standard in determining the need for Si fertilization.
Co-Authors Abraham Suriadikusumah Benny Joy Rija Sudirja Santi Rosniawaty Sri Muji Rahayu