PENGARUH PEMBERIAN LIMBAH AIR TAHU DAN LIMBAH LIMBAH AIR CUCIAN BERAS TERHADAP PERTUMBUHAN TANAMAN PAKCOY (Brassica rapa L).

Safitri, Nora

doi:10.33059/jj.v8i2.3801

2021

DOI: 10.33059/jj.v8i2.3801

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PENGARUH PEMBERIAN LIMBAH AIR TAHU DAN LIMBAH LIMBAH AIR CUCIAN BERAS TERHADAP PERTUMBUHAN TANAMAN PAKCOY (Brassica rapa L).

Nora Safitri

Abstract: Penelitian ini bertujuan untuk mengetahui pengaruh pemberian limbah air tahu dan limbah air cucian beras terhadap pertumbuhan tanaman pakcoy (Brassica rapa L). Penelitian ini menggunakan Jenis penelitian kuantitatif dengan metode pegumpulan data dan dokumentasi. Rancangan percobaan penelitian ini dengan menggunakan sistem RAL (Rancangan Acak Lengkap), penelitian ini dilakukan di desa Birem Rayeuk, Kec. Birem Bayeun, Kab. Aceh Timur. Penelitian ini menggunakan 5 perlakuan dan 4 pengulangan yang terdiri d… Show more

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Nutrient Leaching Losses from Continuous Application of Washed Rice Water on Three Contrasting Soil Textures

Nabayi¹,

Teh²,

Tan³

et al. 2023

JST

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Washed rice water (WRW) is often used as liquid plant fertilizer. However, there is no study on nutrient leaching of soils due to frequent WRW application. Therefore, a column study was undertaken to evaluate the rate of nutrient leaching losses, nutrient retention, and recovery of elements in leachates of three different soil textures irrigated with WRW. The treatments were 3 soil textures and 2 water types. The treatments were evaluated for 8 weeks, and the soils and leachates were measured biweekly. Factorial and repeated measurements in a completely randomized design were therefore employed. Higher cumulative leaching of the elements was found in sandy clay loam soil with 666.29, 378.13, 138.51, 50.82, 44.61, and 27.30 mg L-1 of K, P, Mg, Ca, NH4+-N, and NO3--N, respectively. Higher percentages of elements recovery in leachate were found in the sandy clay loam soil with a range of increase by 37.8–283.1% than the other two soil textures. In contrast, after 8 weeks of WRW application, the clay and silt loam soils had a range of increase in nutrient retention by 0.43–1358.5% than the sandy clay loam, with P and NO3--N being the highest and the lowest elements retained, respectively, for all soil textures. This study showed that frequent WRW disposal on sandy textured soils risks higher environmental contamination, mainly due to the soil’s lower water retention and nutrients, leading to nutrient leaching. Therefore, organic amendments should be added to sandy textured soils.

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Nutrient Leaching Losses from Continuous Application of Washed Rice Water on Three Contrasting Soil Textures

Nabayi¹,

Teh²,

Tan³

et al. 2023

JST

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Fermentation of White and Brown Rice Water Increases Plant Nutrients and Beneficial Microbes

Nabayi¹,

Teh²,

Tan³

et al. 2022

JTAS

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The wastewater after washing rice grains is known as washed rice water (WRW). WRW is often recommended for reuse as plant fertilizer, but little is known about the difference in the nutrient and microbial contents of WRW between white and brown rice. The study aims to answer this question and determine how much the nutrient contents in the WRW would change with fermentation and how fermentation would affect the phosphorus (P)- and potassium (K)-solubilization bacteria in the WRW. Medium-grained rice was washed at a volumetric rice-to-water ratio of 1:3 for 90 seconds at 0.357 × g. WRW was then fermented for 0 (fresh), 3, 6, and 9 days. The rice grains and WRW were analyzed for pH, electrical conductivity (EC), carbon (C), nitrogen (N), sulfur (S), ammonium (NH4+), nitrate (NO3-), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), copper (Cu), zinc (Zn), and boron (B), as well as for total microbial population and P- and K-solubilizing bacteria. Brown rice grains had 26 to 324% higher P, K, Mg, and Zn than white rice. Nutrient contents in the WRW increased with increasing fermentation, except for C, which decreased with fermentation. At 9 days of fermentation, P, Ca, Mg, Cu, and B in the white rice water increased by 4 to 207%, which were also higher than in the brown rice water. The microbial population increased with fermentation for 3 days, then decreased after that, following the same C trend in the WRW from both rice types. P-and K-solubilization by bacteria in the WRW from both rice types increased with fermentation. The P solubilization was 25% higher in brown rice water, while the K solubilization was 67% higher in white rice water. Fermented rice water from white and brown rice was revealed to potentially improve plant growth and increase overall soil health due to their plant nutrient and microbial contents.

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PENGARUH PEMBERIAN LIMBAH AIR TAHU DAN LIMBAH LIMBAH AIR CUCIAN BERAS TERHADAP PERTUMBUHAN TANAMAN PAKCOY (Brassica rapa L).

Cited by 2 publications

References 0 publications

Nutrient Leaching Losses from Continuous Application of Washed Rice Water on Three Contrasting Soil Textures

Nutrient Leaching Losses from Continuous Application of Washed Rice Water on Three Contrasting Soil Textures

Fermentation of White and Brown Rice Water Increases Plant Nutrients and Beneficial Microbes

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