scholarly journals STUDY ON ARSENIC MITIGATION BY LIMING METHOD COMBINING ORGANIC MATERIAL ON SOYBEAN AND CORN IN AN GIANG PROVINCE

2020 ◽  
Vol 1 (37) ◽  
pp. 108-114
Author(s):  
Chuong Van Nguyen ◽  
Chinh Trung Nguyen
Keyword(s):  
Organic Matter ◽  
Rice Husk ◽  
Organic Material ◽  
Organic Materials ◽  
Rice Husk Ash ◽  
Arsenic Content ◽  
Soybean Crop ◽  
Crop Land ◽  
Corn Crop ◽  
Rice Husk Biochar

The study on arsenic mitigation by liming method, combining organic material on soybean and corn crops on the dyke in An Giang, was conducted to determine the effect of lime combination rice husk ash (03 tons/ha) on the uptake of arsenic in soybean, and the effect of lime combination sawdust (02 tons/ha) on the uptake of arsenic in corn crops. The experiment was arranged in a completely randomized block field format, where the experiments were arranged with 2 treatments with 4 replicates: Treatment 1 (NT1): control (No liming combined with organic materials); Treatment 2 (NT2): liming combined with organic materials in a ratioof 1: 1 (Dosage: 03 tons / ha of lime mixture with rice husk biochar for soybean crop land, 02 tons / ha of mixed lime combined with sawdust for corn crop land). The results revealed that liming treatments combined withorganic materials increased pH H2O and arsenic in soil - the lime combination rice husk ash arsenic content in roots (0.836 mg/kg), leaf stems (0.83 mg/kg) and seeds (0.06 mg/kg) had results lower than the control treatments, 33.1%; 32.5% and 45.5% respectively. Applying and combining lime with sawdust resulted in lower arsenic content in leaf stems (95.3 mg/kg) and seeds (6.33 mg/kg) compared to the control treatmentsby 31.9% and 49.4%. Therefore, added lime combined with organic matter can decrease arsenic content in plants, and it is recommended that growers apply this technique to reduce the absorption of arsenic into crops.

scholarly journals Rice husk and melaleuca biochar additions reduce soil CH4 and N2O emissions and increase soil organic matter and nutrient availability

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 1128
Author(s):  
Nam Tran Sy ◽  
Thao Huynh Van ◽  
Chiem Nguyen Huu ◽  
Cong Nguyen Van ◽  
Tarao Mitsunori
Keyword(s):  
Organic Matter ◽  
Rice Husk ◽  
Mekong Delta ◽  
Application Rate ◽  
N2o Emissions ◽  
Application Rates ◽  
Reduce Emissions ◽  
Local Water ◽  
Ch4 And N2o ◽  
Rice Husk Biochar

Background: Biochar is a promising material in mitigating greenhouse gases (GHGs) emissions from paddy fields due to its remarkable structural properties. Rice husk biochar (RhB) and melaleuca biochar (MB) are amendment materials that could be used to potentially reduce emissions in the Vietnamese Mekong Delta (VMD). However, their effects on CH4 and N2O emissions and soil under local water management and conventional rice cultivation have not been thoroughly investigated. Methods: We conducted a field experiment using biochar additions to the topsoil layer (0-20 cm). Five treatments comprising 0 t ha-1 (CT0); 5 t ha-1 (RhB5) and 10 t ha-1 (RhB10), and 5 t ha-1 (MB5) and 10 t ha-1 (MB10) were designed plot-by-plot (20 m2) in triplicates. Results: The results showed that biochar application from 5 to 10 t ha-1 significantly decreased cumulative CH4 (24.2 – 28.0%, RhB; 22.0 – 14.1%, MB) and N2O (25.6 – 41.0%, RhB; 38.4 – 56.4%, MB) fluxes without a reduction in grain yield. Increasing the biochar application rate further did not decrease significantly total CH4 and N2O fluxes but was seen to significantly reduce the global warming potential (GWP) and yield-scale GWP in the RhB treatments. Biochar application improved soil Eh but had no effects on soil pH. Whereas CH4 flux correlated negatively with soil Eh (P < 0.001; r2 = 0.552, RhB; P < 0.001; r2 = 0.502, MB). The soil physicochemical properties of bulk density, porosity, organic matter, and anaerobically mineralized N were significantly improved in biochar-amended treatments, while available P also slightly increased. Conclusions: Biochar supplementation significantly reduced CH4 and N2O fluxes and improved soil mineralization and physiochemical properties toward beneficial for rice plant. The results suggest that the optimal combination of biochar-application rates and effective water-irrigation techniques for soil types in the MD should be further studied in future works.

THE FORMS OF NITROGEN IN THE ORGANIC MATTER OF DIFFERENT HORIZONS OF SOIL PROFILES

1958 ◽  
Vol 38 (2) ◽  
pp. 149-156 ◽  
Author(s):  
F. J. Sowden
Keyword(s):  
Organic Matter ◽  
Glutamic Acid ◽  
Acid Hydrolysis ◽  
Aspartic Acid ◽  
Organic Material ◽  
Organic Materials ◽  
Soil Profiles

A study was made of the amount of amide-N (as glutamine and asparagine) in soil materials by methylating the organic material with methanolic-HCl, reducing the resulting product with LiBH4and determining the loss of glutamic and aspartic acids. The data obtained lend support to the hypothesis that a percentage of the ammonia-N formed on acid hydrolysis, equal or nearly equal to the sum of the glutamic acid-N + the aspartic acid-N, is derived from glutamine and asparagine. An attempt to use other methods to determine the amount of amide-N in soil materials indicated that these methods would not, in general, be reliable, although they might give acceptable results when the degree of decomposition of the organic materials was not too great (e.g., in the A00or A0horizons).

scholarly journals Pengaruh Pemberian Abu Sekam Padi terhadap Pertumbuhan Dan Hasil Tanaman Cabe Rawit (Capsicum frutescents L.) pada Tanah Rawa Lebak

2011 ◽  
Vol 1 (1) ◽  
pp. 12-17
Author(s):  
Norhasanah Norhasanah ◽  
Nira Yusnita
Keyword(s):  
Rice Husk ◽  
Vegetative Growth ◽  
Organic Material ◽  
Rice Husk Ash ◽  
Block Design ◽  
Growth And Yield ◽  
Randomized Block Design

       Lebak wetland is potential for cultivation of various types of vegetables, especially cayenne pepper. The problem in the land is an increase in the solubility of Al, Fe, Mn, and Cu which can poison plants. To overcome this problem, the effort that can be done is to provide organic material. This study aims to (i) determine the effect of dosages of rice husk ash on the growth and yield of cayenne in swamp lebak, (ii) obtain the best dosage of rice husk ash for growth and yield of cayenne pepper in swampy swampy soil. The study was conducted in Palampitan Hilir Village, Amuntai Tengah District, Hulu Sungai Utara Regency, from March - May 2010, this study used a Randomized Block Design (RBD), with 5 treatments and 4 replications, so that 20 experimental units were obtained, and 4 treatments. The factors tested were doses of rice husk ash, namely: p0 = 0 g. polybag -1, p1 = 24 g. polybag -1, p2 = 48 g. polybag -1, p3 = 72 g. polybag-1, and p4 = 96 g. polybag -1. The results showed that the treatment had a very significant effect on all plant variables observed with the best dose of rice husk ash for vegetative growth was p2 and that generative growth was p3.

scholarly journals PENGARUH BAHAN ORGANIK TERHADAP DAYA IKAT AIR PADA TANAH ULTISOL LAHAN KERING

2021 ◽  
Vol 8 (2) ◽  
pp. 327-332
Author(s):  
Nikodemus Dongga Panda ◽  
Uska Peku Jawang ◽  
Lusia Danga Lewu
Keyword(s):  
Organic Matter ◽  
Water Content ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Field Capacity ◽  
Physical Characteristics ◽  
Cow Dung ◽  
Observation Data ◽  
Dry Land ◽  
Organic C

Ultisol is one of the soils with limited physical characteristics. The water content is low, the permeability is not enough to pass water into the soil, and the organic-C content is classified as moderate. So that it affects the soil in storing low water, one solution to overcome the physical characteristics of is to provide organic matter into the soil. The purpose of this study was to determine the physical characteristics of Ultisol and to determine the effect of the combination of organic matter from cow dung and rice husk ash on the soil water holding capacity of ultisols on dry land. This study was conducted at the Laboratory of Wira Wacana Christian University, Sumba. This study used a completely randomized design with six treatments and four replications. Observation data were subjected to analysis of variance followed by LSD advanced test with a confidence level of 5%. The results showed that the application of organic matter on the soil significantly affected water content, field capacity, permeability, and C-organic. The application of organic matter can improve soil structure, not soil texture gave a very significant effect, and the treatment that had the best water content was 75% cow dung + 25% rice husk ash.

scholarly journals EFEITOS DE DIFERENTES FONTES DE MATERIAL ORGÂNICO NA FERTILIDADE E UMIDADE DO SOLO

2021 ◽  
Vol 15 (4) ◽  
pp. 644-659
Author(s):  
Daniela Fernanda Alves ◽  
Kleso Silva Franco Junior ◽  
Giselle Giselle Prado Brigante ◽  
Márcio De Souza Dias ◽  
Natália Scalco Ferreira
Keyword(s):  
Organic Matter ◽  
Soil Fertility ◽  
Organic Material ◽  
Organic Materials ◽  
Swine Manure ◽  
Poultry Manure ◽  
Cattle Manure ◽  
Fundamental Importance ◽  
Material Control ◽  
Initial Analysis

Soil is a resource of fundamental importance for agriculture, one of its functions being the balanced supply of nutrients to plants. One of the ways to make the soil sustainable is by applying organic matter, which can be of animal or vegetable origin. The objective was to evaluate the effect of adding different organic materials to the soil in relation to its fertility and moisture. Conducted an initial analysis to analyze soil fertility. Then the area was divided into plots and the treatments were applied, which consisted of 40 ton ha-1 cattle manure, 5 ton ha-1 poultry manure, 53 ton ha-1 swine manure, 30 ton ha-1 coffee straw and 0 ton ha-1 organic material (control). After 90 days, samples were taken from this soil to analyze its fertility and moisture. The treatments that best contributed to its fertility were swine and cattle manure and the treatment that retained more moisture was coffee straw.

scholarly journals KANDUNGAN BAHAN ORGANIK SEDIMEN DAN KADAR H2S AIR DI DALAM DAN DI LUAR TEGAKAN MANGROVE DESA BEDONO, KABUPATEN DEMAK

2018 ◽  
Vol 7 (1) ◽  
pp. 78-85
Author(s):  
Halimatus Sa’diyah ◽  
Norma Afiati ◽  
Pujiono Wahyu Purnomo
Keyword(s):  
Organic Matter ◽  
Dissolved Oxygen ◽  
Water Temperature ◽  
Organic Material ◽  
Organic Materials ◽  
Current Speed ◽  
Survey Method ◽  
Water Sampling ◽  
Mangrove Area ◽  
Surrounding Environment

Kawasan mangrove dapat memproduksi bahan organik dari proses dekomposisi serasah yang jatuh yang menjadi penyuplai nuterien ke lingkungannya. Proses tersebut menggunakan oksigen terlarut yang apabila oksigen terlarut habis maka proses tersebut beralih ke proses dekomposisi secara anaerob yang menyebabkan terbentuknya senyawa H2S. Penelitian ini bertujuan untuk mengetahui perbedaan kandungan bahan organik sedimen dan kadar H2S air di dalam dan di luar kawasan mangrove serta untuk mengetahui hubungan kandungan kadar H2S air dengan bahan organik sedimen dan oksigen terlarut di kawasan mangrove desa Bedono. Metode penelitian adalah metode survey. Penelitian ini dilakasanakn pada bulan Mei- Juni 2017 di lokasi yang mewakili kawasan mangrove dan lingkungan sekitarnya. Data yang diukur adalah suhu air, kecerahan, kedalaman, kecepatan arus, oksigen terlarut, pH, bahan organik sedimen dan H2S air yang dilaksanakan empat kali dengan selang pengukuran dua minggu. Hasil yang didapat yaitu suhu air 28-31oC, kecerahan 14,5-68 cm, kedalaman 33-165 cm, kecepatan arus 0-0,1 m/s, oksigen terlarut , pH 5-6, bahan organik sedimen 7,73-20,27%, H2S air 0,003-0,037 mg/l. Kandungan bahan organik sedimen dan kadar H2S air tertinggi di dalam kawasan mangrove dengan rata-rata 16,36% dan 0,031 mg/l, dan terendah di luar kawasan mangrove dengan rata-rata 9,78% dan 0,01 mg/l. Kadar H2S tinggi di dalam kawasan mangrove dan lebih rendah di luar kawasan mangrove. Kadar H2S air dengan bahan organik sedimen dan oksigen terlarut berhubungan linier dengan persamaan H2S= 0,027 + 0,001BOS- 0,006 DO (r= 0,7246, BOS= Bahan Organik Sedimen, DO= Dissolved Oxygen). Mangroves produce organic matter from the decomposition of falling leaves, twigs etc, which supply nutrient to the environment. The process uses dissolved oxygen; when dissolved oxygen exhausted, it switches into anaerobic decomposition which causes the formation of H2S compounds. This study aims to knowing differences in sediment organic materials and H2S within and adjacent of mangrove areas and to determine the relation of H2S with sediment organic materials and dissolved oxygen in the mangrove areas of Bedono. Survey method is refered, and the study was conducted in May - June 2017 on locations representing mangrove areas and the surrounding environment. The data measured are water temperature, brightness, depth, current speed, dissolved oxygen, pH, sediment organic materials and H2S in the water. Sampling was conducted four times every fortnight. The result of the water temperature is  28-31 ° C, brightness 14.5 to 68 cm, 33-165 cm depth, current speed 0-0.1 m/s, dissolved oxygen 2-5,2 mg/l, pH 5-6, sediment organic material 7,73 to 20.27%, H2S 0.003 to 0.037 mg/l. Sediment organic materials and H2S were highest within the mangrove area, with an average 16.36% and 0.031 mg/l, and the lowest outside of mangrove area with an average 9.78% and 0.01 mg/l. H2S higher in the inside of  the mangrove areas compared to the outside of it. The relation of H2S with sediment organic materials and dissolved oxygen is linearly related according to the equation H2S= 0.027+ 0.001SOM- 0.006DO (r= 0.7246, SOM= Sediment Organic Materials, DO= Dissolved Oxygen).

Effect of Rice Husk and Rice Husk Ash on Properties of Lightweight Clay Bricks

2015 ◽  
Vol 659 ◽  
pp. 74-79 ◽  
Author(s):  
Sutas Janbuala ◽  
Thanakorn Wasanapiarnpong
Keyword(s):  
Compressive Strength ◽  
Organic Matter ◽  
Chemical Composition ◽  
Water Absorption ◽  
Bulk Density ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Clay Brick ◽  
Clay Bricks ◽  
The Difference

The objective of this study is to investigate the effect of rice husk and rice husk ash which have the difference chemical composition and organic matter on porosity and properties of lightweight clay brick . Comparative adding between rice husk and rice husk ash were varied by 10, 20, 30, 40 % by weight. The results showed that more adding of rice husk and rice husk ash increase pore in microstructure and water absorption, while decrease bulk density. Porosity and water absorption are maximized when the rice husk are added at 40 %. The clay brick with 10, 20 and 30 % of rice husk or rice husk ash addition showed the required density and compressive strength followed the industrial standard of lightweight brick. The addition with 10 % of rice husk showed the best properties as 1.20 g/cm3 of bulk density and 4.6 MPa of compressive strength with 36.57 % of porosity. Whereas, the 10 % addition of rice husk ash showed 1.18 g/cm3 of bulk density and 5.97 MPa with 37.27 % of porosity.

scholarly journals PENGARUH PUPUK ORGANIK BERBASIS AZOLLA, FOSFAT ALAM, DAN ABU SEKAM PADI TERHADAP HASIL KACANG TANAH DI ALFISOL

2014 ◽  
Vol 29 (2) ◽  
pp. 73
Author(s):  
Anandeya Satrio Sambodo ◽  
Sudadi Sudadi ◽  
Sumarno Sumarno
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Rice Husk ◽  
Phosphate Rock ◽  
Rice Husk Ash ◽  
Organic Matter Content ◽  
Matter Content ◽  
Organic Fertilizers ◽  
Soil Biology ◽  
Soil Organic Matter Content

<p>This research to determine the effect of azolla-based organic fertilizers, rock phosphate, and rice husk ash, and the best combination treatment to peanut yield on Alfisols. The experiment was conducted in April-November 2013 at the paddy fields of farmers in Sukosari village, Jumantono, Karanganyar District and in Laboratory of Soil Chemistry and Fertility and Soil Biology and Biotechnology Laboratory, Department of Soil Science, Faculty of Agriculture UNS for soil chemical and biological properties respectively. This experimental design used was Randomized Block Completely Design (RCBD) with 5 treatments and each repeated 5 times. Statistical analysis of the data using the F test at 5% level of confidence followed by DMRT if any signicant influence. The variabels observed were soil organic matter content, soil pH, total number of soil bacteria, plant height, number of root nodules, and seed weight. The results showed that there was significant differences among the treatments. The treatment of P1 (5 tons/ha azolla compost, 100 kg/ha phosphate rock and 75 kg/ha rice husk ash) provide the highest of soil organic matter content (4.31%) while P2 (5 tons/ha azolla compost, 50 kg/ha phosphate rock and 37.5 kg/ha rice husk ash) provide the highest dry seed yield (1011.09 kg/ha) which was 11.06 % higher than control treatment (910.38 kg/ha).</p>

scholarly journals Pengaruh Media Tumbuh Biochar Sekam Padi Terhadap Pertumbuhan Bibit Kelapa Sawit

Buletin Palma ◽  
2016 ◽  
Vol 16 (2) ◽  
pp. 195
Author(s):  
BASRI A B ◽  
. CHAIRUNNAS ◽  
ABDUL AZIS
Keyword(s):  
Rice Husk ◽  
Oil Palm ◽  
Organic Material ◽  
Block Design ◽  
Growth Media ◽  
Font Size ◽  
Black Line ◽  
Randomized Block Design ◽  
Growing Medium ◽  
Rice Husk Biochar

<p><span style="font-size: medium;">ABSTRAK </span></p><p>Bibit kelapa sawit yang baik salah satunya ditentukan oleh media tumbuh. Penggunaan kompos ataupun pupuk kandang sering berhasil memperbaiki produktivitas tanah dan  mensuplai unsur hara ke tanaman. Namun, keuntungan pembenah tanah seperti ini bersifat jangka pendek, terutama di daerah tropis, karena dekomposisi bahan organik yang diberikan berlangsung cepat dan biasanya mengalami mineralisasi menjadi CO2. Karbon hitam (C), yang disebut sebagai biochar dapat mengatasi beberapa keterbatasan suplai bahan organik. Penelitian ini bertujuan untuk mendapatkan komposisi media tumbuh biochar yang sesuai untuk pertumbuhan bibit kelapa  sawit. Penelitian menggunakan Rancangan Acak Kelompok dengan 10 perlakuan dan tiga ulangan. Perlakuan yang diuji adalah (1) Topsoil 100%, (2) Biochar sekam padi 100%, (3) Topsoil 50% + biochar sekam padi 50%, (4) Topsoil 50% + kompos 50%, (5) Topsoil 66,6% + biochar sekam padi 33,4%, (6) Topsoil 66,6% + kompos 33,4%, (7) Topsoil 33,3% + biochar sekam padi 33,3% + kompos 33,4%, (8) Topsoil 50% + biochar sekam padi 25% + kompos 25%, (9) Topsoil 40% + biochar sekam padi 40% + kompos 20%, (10) Topsoil 25%+ biochar sekam padi 50% + kompos 25%. Hasil penelitian menunjukkan bahwa pertumbuhan bibit kelapa sawit yang terbaik diperoleh pada media tumbuh campuran topsoil 40%+ biochar sekam padi 40% + kompos 20%.</p><p>Kata kunci : Pembibitan kelapa sawit,  biochar sekam padi, media tumbuh.</p><p> </p><p><strong><span style="font-size: medium;"><span style="color: black; line-height: 115%; letter-spacing: -0.35pt; font-family: 'Arial Bold'; font-size: 14pt; mso-bidi-font-family: 'Arial Bold'; mso-font-width: 95%; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: IN; mso-fareast-language: IN; mso-bidi-language: AR-SA;">The Effect of Biochar Medium on Oil Palm Seedling Growth </span></span></strong></p><p><span style="font-size: medium;">ABSTRACT </span></p><p>Good oil palm seedlings among otyher thing determined by the growing medium. The use of compost or manure often managed to improve productivity, supply nutrient to the palm. But the advantage of using compost or manure to improve soil fertility are share term, especially in the tropic, because decomposition of organic material and usually under go CO2. Black carbon is called biochar can over come some of the limititations of the supply of organic. The research aims to obtain the composition of biochar growth media which suitable for growing of oil palm seedlings. The research was designed by using Randomized Block Design with 10 growth media treatments and 3 replications. The treatments were tested consist of (1) Topsoil 100%, (2) Rice husk biochar 100%, (3) Topsoil 50% + rice husk biochar 50%, (4) Topsoil 50% + compost 50%, (5) Topsoil 66,6% + rice husk biochar 33,4%, (6) Topsoil 66,6% + compost33,4%, (7) Topsoil 33,3% + rice husk biochar 33,3% + compost33,4%, (8) Topsoil 50% + rice husk biochar 25% + compost 25%, (9) Topsoil 40% + rice husk biochar 40% + compost  20%, (10) Topsoil 25% + rice husk biochar 50% + compost 25%. Result indicated that the best growth of oil palm seedlings was obtained on media topsoil 40% + rice husk biochar 40% + compost 20%.</p><p>Keywords: Oil palm nursery, rice husk biochar, growth media.</p>

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