scholarly journals Manurial amendments and source of water for supplemental irrigation of sawah-rice system influenced soil quality and rice yield

Agro-Science ◽  
2021 ◽  
Vol 20 (1) ◽  
pp. 95-102
Author(s):  
A.L. Nnadi ◽  
V.U. Ugwu ◽  
J.C. Nwite ◽  
S.E. Obalum ◽  
C.A. Igwe ◽  
...  
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Spring Water ◽  
Mineral Fertilizers ◽  
Small Scale ◽  
Rice Grain ◽  
Southeastern Nigeria ◽  
Supplemental Irrigation ◽  
Husk Rice ◽  
Poultry Droppings

Soil and water management research on adapting the promising sawah ecotechnology for lowland rice farming in West Africa has largely focused on the abundant inland valleys; floodplains which too represent a huge agricultural resource in the region have not been so involved. Sawah refers to a bunded, puddled and leveled basin for rice, with water inlets and outlets for irrigation and drainage, respectively. In conventional sawah, soil fertility is augmented using mineral fertilizers, with an option to harness lowland water resources for use in small-scale irrigation to create the so-called sawah typologies. In this study, we evaluated the effects of three manurial amendments (rice husk, rice-husk ash and poultry droppings, each at 10 t ha–1) and NPK 20:10:10 at 400 kg ha–1 interacting with source of water (spring or pond) used for supplemental irrigation of three sawah typologies in a floodplain in southeastern Nigeria. Plots amended with poultry droppings and supplemented with spring water recorded the overall best performance of the sawah-rice system; the control being the unamended non-supplemented (solely rainfed) plots recorded the worst. Rice-husk ash and rice husk enhanced soil pH and soil organic carbon, respectively. The three sawah typologies showed a consistent trend thus spring-supplemented ≥ pond-supplemented ≥ non-supplemented sawah. Rice grain yield was influenced by soil total nitrogen and the sum of the three plant-nutrient basic cations (K+ , Ca2+ and Mg2+), with the influence of K+ alone being the greatest. To enhance rice performance including grain yields in floodplain sawah, farmers should utilise poultry droppings as soil manure and spring water for supplemental irrigation.

scholarly journals Adsorption of Flagyl on Prepared Ash from Rice Husk

2021 ◽  
Vol 22 (4) ◽  
pp. 11-17
Author(s):  
Haider Abbas ◽  
Ammar S. Abbas
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Primary Source ◽  
Alternative Methods ◽  
X Ray Diffraction ◽  
X Ray ◽  
Adsorption Data ◽  
Pseudo Second Order ◽  
Husk Rice ◽  
Increasing Temperature

In recent years, it has been evident that searching for alternative methods with low-price and eco-friendly features that produce high-quality adsorbents is in high demand. In the present work, Rice husk from Iraqi rice named (Amber) had been used as the primary source to produce rice husk ash (RHA) for the removal of the antibiotic metronidazole (Flagyl) from water. After optimum drying of rice husk, rice husk ash (RHA) was obtained at 600 °C using an electric oven. RHA has been investigated for properties using X-ray diffraction (XRD), porosity, and surface area (SA). The experimental work adsorption data were optimized to evaluate Langmuir and Freundlich constants. The thermodynamic parameters likely a change in Gipp's energy (ΔG), enthalpy (ΔH), and entropy (ΔS). The impacts of increasing temperature on adsorption capacity were investigated, and the results indicate that the pseudo-second-order kinetics model could be presented the dynamic adsorption data that it has. The resultant values for the heat of adsorption and the free energy indicated that adsorption of Flagyl is preferred at low temperatures.

scholarly journals PENGARUH JENIS AGREGAT RINGAN BUATAN TERHADAP KUAT TEKAN BETON RINGAN = EFFECT OF ARTIFICIAL LIGHTWEIGHT AGGREGATE TYPE FOR COMPRESSIVE STRENGTH OF LIGHTWEIGHT CONCRETE

2019 ◽  
Vol 13 (1) ◽  
pp. 27
Author(s):  
Nurul Aini Sulistyowati ◽  
Deden Suripto
Keyword(s):  
Compressive Strength ◽  
Specific Gravity ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Lightweight Concrete ◽  
Raw Materials ◽  
Lightweight Aggregate ◽  
Mechanical And Physical Properties ◽  
Husk Rice ◽  
Compressive Strength Of Concrete

The aim of the research was to know the mechanical and physical properties of lightweight aggregate and compressive strength of concrete with lightweight aggregate. The raw materials for manufacturing lightweight aggregate include the mix composition of shale + sawdust, shale + rice husk, shale + rice husk ash, and shale. Th structural lightweight concrete was designed to have a compressive strength of 25 MPa. The specimen was cylindrical of 10 diameter and 20 cm high. The compressive strength of concrete tested at ages of 14 days, 21 days, and 28 days. Specific gravity of lightweight aggregate was less than 1.5, the best water absorption was of the lightweight aggregate shale and the best hardness that of the lightweight aggregate shale+ rice husk ash. The compressive strength of concrete with lightweight aggregate shale + sawdust 265.04 kg/cm2 and shale + rice husk ash 264.73 kg/cm2, all of which were higher than compressive strength. The compressive strength of concrete with lightweight aggregate shale + rice was husk 234.82 kg/cm2 and that of the shale was 212.23 kg/cm2 , which were lower than the designed compressive strength.Keywords : artificial lightweight aggregate, lightweight concrete, shale, sawdust, rice husk, rice husk ash AbstrakPenelitian bertujuan untuk mengetahui sifat fisis dan mekanis agregat ringan serta kuat tekan beton yang menggunakan agregat ringan. Pembuatan agregat ringan menggunakan komposisi campuran shale + serbuk gergaji kayu, shale + abu sekam padi, shale + sekam padi, serta shale. Pembuatan beton ringan struktural menggunakan rancangan campuran dengan kuat tekan rencana sebesar 25 MPa. Benda uji berbentuk silinder dengan diameter 10 cm dan tinggi 20 cm. Pengujian kuat tekan beton dilakukan pada umur 14 hari, 21hari dan 28 hari. Berat jenis agregat ringan kurang dari 1,5 dengan penyerapan air terbaik pada agregat ringan shale dan kekerasan terbaik pada agregat ringan shale + abu sekam padi. Kuat tekan beton agregat ringan shale + serbuk gergaji sebesar 265,04 kg/cm2 dan agregat ringan shale + abu sekam padi 264,73 kg/cm2 lebih tinggi dari kuat tekan rencana. Kuat tekan beton agregat ringan shale + sekam padi sebesar 234,82 kg/cm2 dan agregat ringan shale sebesar 212,23 kg/cm2 lebih rendah dari kuat tekan rencana.Kata kunci : agregat ringan buatan,beton ringan, shale, serbuk gergaji kayu, sekam padi, abu sekam padi

scholarly journals SIFAT KIMIA DAN FISIK BAHAN UTAMA CONBLOCK RINGAN YANG MENGGUNAKAN AGREGAT SEKAM PADI

PERENNIAL ◽  
2012 ◽  
Vol 8 (2) ◽  
pp. 62
Author(s):  
. Bakri
Keyword(s):  
Portland Cement ◽  
Key Words ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Analysis Procedure ◽  
Reactive Substance ◽  
Composite Cement ◽  
Chemical Content ◽  
Husk Rice

This research aimed to assess the properties of main substances used to produce lightweight composite cement using rice husk as aggregate. Main substances used in this research consisted of Portland cement tipe I, lime, rice husk and rice husk ash. Portland cement tipe I, lime and rice husk obtained from local producers in Makassar, while rice husk ash obtained by burning rice husk conventionally in kiln drum and subsequently followed by burning in furnace of 1400 Barnsted Thermolyne Type at temperature 600 oC for 2 hours. Chemical Content of the substances analyzed by adopted the analysis procedure in SNI 15-2049-2004. Alkalinity of Portland cement tipe I, silica of rice husk ash and Na2O dan K2O was categorized as low, while rice husk was categorized as reactive substance. Key words: Portland cement tipe I, rick husk, rice husk ash, lime, lightweight composite cement

scholarly journals ABSORPSI AIR KOMPOSIT SEMEN SEKAM PADI DENGAN PENAMBAHAN POZZOLAN ABU SEKAM PADI DAN KAPUR PADA MATRIKS SEMEN

PERENNIAL ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 70 ◽  
Author(s):  
. Bakri ◽  
. Baharuddin
Keyword(s):  
Water Absorption ◽  
Key Words ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Cement Composite ◽  
Pozzolanic Material ◽  
Husk Rice ◽  
Reduced Water

This research aimed to determine the role of rice husk ash as pozzolanic material in reducing water absorption of rice husk cement composite. Rice husk ash obtained by burning rice husk conventionally in kiln drum. Preparation of water absorption testing samples was conducted according to ASTM C 140, while ASTM C 90 used to evaluate the desired water absorption. Rice husk ash as of 40 % significantly reduced water absorption of the composite, but only rice husk ash of 20 % dan 30 % fulfilled the ASTM C 90 requirement. Addition of lime in the mixture increased the water absorption. Key words: pozzolamic, water absorption, rick husk, rice husk ash.

scholarly journals The effect of organic waste application on some soil physical properties, growth and yield of red rice between conventional and aerobic irrigation system on raised-beds

2021 ◽  
Vol 913 (1) ◽  
pp. 012003
Author(s):  
I G M Kusnarta ◽  
A Mawaddah ◽  
N W D Dulur ◽  
W Wangiyana
Keyword(s):  
Physical Properties ◽  
Grain Yield ◽  
Rice Husk ◽  
Organic Waste ◽  
Rice Husk Ash ◽  
Irrigation System ◽  
Cattle Manure ◽  
Growth And Yield ◽  
Rice Grain ◽  
Red Rice

Abstract The objective of this study was to evaluate the effect of organic waste application on some soil physical properties, growth and yield of red rice between conventional and aerobic irrigation systems on permanent raised-beds. The experiment was carried out in May to August 2020, under Split Plot design with two factors namely techniques of rice cultivation (conventional, T1; aerobic irrigation system, T2) as main plots, and organic wastes (L0=without organic waste, L1=rice husk, L2=rice husk ash, L3=rice husk ash and cattle manure) as the subplots. Results indicated that both treatment factors affected some physical properties of the soil, growth, and yield of red rice. Some variables showed significant interaction namely soil bulk density, red-rice height, leaf number and dry straw weight. Changing rice cultivation technique from conventional to aerobic irrigation system significantly reduced soil bulk density, especially under application of rice husk ash together with cattle manure or without cattle manure, resulting in the highest red rice grain yield of 37.78 g/clump whereas under conventional without organic wastes, grain yield was only 21.27 g/clump. On average, changing from conventional technique to aerobic irrigation system could increase red rice grain yield by 40.13%.

scholarly journals Rice husk/rice husk ash as an alternative source of silica in ceramics: A review

2018 ◽  
Vol 6 (4) ◽  
pp. 299-313 ◽  
Author(s):  
SK S. Hossain ◽  
Lakshya Mathur ◽  
P.K. Roy
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Alternative Source ◽  
Husk Rice

scholarly journals Comparative toxicity of botanical powders, diatomaceous earth, pirimiphos methyl, rice husk (powder and ash) against Callosobruchus maculatus (Fab.)

2018 ◽  
Vol 5 (11) ◽  
pp. 709-724
Author(s):  
M. O. Ashamo ◽  
A. I. Babalola ◽  
O. C. Ogungbite
Keyword(s):  
Weight Loss ◽  
Rice Husk ◽  
Diatomaceous Earth ◽  
Callosobruchus Maculatus ◽  
Rice Husk Ash ◽  
Adult Emergence ◽  
Small Scale ◽  
Comparative Toxicity ◽  
Grain Damage ◽  
Pirimiphos Methyl

This study was carried out to investigate the comparative toxicity of seeds of Piper guineense Schum & Thonn, Capsicum annum L., diatomaceous earth, pirimiphos-methyl dust, rice husk (powder and ash) against Callosobruchus maculatus (F.) in stored cowpea seeds. Toxicity test was carried out by exposing five pairs each of freshly emerged beetles to the substrate materials at the rates of 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 g/20 g of grains. The experiment conducted at ambient temperature of 28 oC + 2 oC and 75% + 5% relative humidity was replicated three times and arranged in a completely randomized design. Adult mortality was observed for four days. The following phytochemicals were observed in the materials: alkaloids, saponins, tannin, flavonoid and glycosides. Results of the toxicity assay revealed that rice husk ash was the most toxic to adult C. maculatus with 100% mortality (p < 0.05) within 72 h of exposure at a concentration of 0.1 g/20 g grains. Pirimiphos methyl gave a significantly high mortality of 76.67% at a concentration of 0.2 g/20 g of grains in cowpea after 72 h of application. The least efficacy was observed with rice husk powder evoking 3.33% at a dosage of 0.3 g/20 g in cowpea. The treated grains significantly reduced the oviposition and adult emergence of C. maculatus and were significantly different from the control in all the different dosages. Oviposition and adult emergence were lowest in rice husk ash with 8 eggs and 24.62% adult emergence in C. maculatus, at 0.5 g/20 g dosage. The percentage adult emergence in the untreated grains was significantly different (higher) (p > 0.05) from the emergence in the treated cowpea grains across the dosages. At all levels of dosages, the powders and ash significantly reduced weight loss, damage and weevil perforation index caused by the beetle. Rice husk ash at 0.5 g dosage recorded the lowest weight loss, grain damage and weevil perforation index of 0.40%, 1.95% and 5.80%, respectively. The findings from this research showed that rice husk ash was most potent/toxic to C. maculatus and its use could be encouraged especially in small scale storage.

scholarly journals PERANAN ABU SEKAM PADI UNTUK MENGURANGI POROSITAS CONBLOCK RINGAN SEKAM PADI

PERENNIAL ◽  
2012 ◽  
Vol 8 (1) ◽  
pp. 6
Author(s):  
. Bakri
Keyword(s):  
Key Words ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Test Preparation ◽  
Pozzolanic Material ◽  
Sample Test ◽  
Lower Porosity ◽  
Husk Rice ◽  
All Treatment

This research aimed to determine the role of rice husk ash as pozzolanic material in reducing porosity of lightweight rice husk-conblock. Rice husk ash was obtained by burning rice husk conventionally in kiln drum and subsequently followed by burning in furnace of 1400 Barnsted Thermolyne Type at temperature 600 oC for 2 hours. Sample test preparation and procedure of porosity was adopted from ASTM C 140. Rice husk ash significantly reduced the porosity at all treatment combinations of rice husk ash percentage, but the lower porosity (31 %) obtained by using rice husk ash of 20 %. Key words: rick husk, rice husk ash, lightweight conblock, porosity

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