scholarly journals Effects of Poultry Biochar on Electrochemical Properties of an Alfisol and Vertisol of Northern Nigeria

2021 ◽  
Vol 1 (3) ◽  
pp. 200-207
Author(s):  
Victor Odiamehi Onokebhagbe ◽  
Kingsley Chinyere Uzoma ◽  
Lawal Mubarak ◽  
Auwalu Abubakar Kwalam ◽  
Habib Dahiru Wakili
Keyword(s):  
Electrical Conductivity ◽  
Cation Exchange Capacity ◽  
Exchange Capacity ◽  
Northern Nigeria ◽  
Arid Soils ◽  
Electrical Potentials ◽  
Zero Charge ◽  
Randomized Design ◽  
Two Factors ◽  
Semi Arid

This study was aimed to know the effects of biochar on charge properties of an Alfisol and Vertisol of semi-arid soils of Northern Nigeria. A laboratory experiment was conducted to determine the effects of biochar on point zero charge of soils. Experiment was laid out in a complete randomized design and consisted of two factors; 2 soil types and biochar at 4 levels giving a total of 8 treatment combinations with 3 replications each.The results obtained from the study showed that the pH in KCl of the incubated soils ranged from 7.3 to 7.4 and 7.6 to 7.9 for the Alfisol and Vertisol; 7.5 to 7.7 and 7.9 to 8.3 pH in H2O, was obtained for the Alfisol and Vertisol respectively. Electrical conductivity obtained ranged from 3.22 to 4.72 and 2.88 to 4.21 dS m-1 for Alfisol and Vertisol respectively. Electrical potentials ranged from -19.70 to -35 and -31.45 to -63.04 for the Alfisol and Vertisol respectively. The Point Zero Charge of soils correlated positively with the properties of the soils and the biochar rates.The addition of biochar to soils modified the PZC, increased the pH, electrical conductivity (ECe) and cation exchange capacity (CEC) of the soils.

Co-composting of distillery and winery wastes with sewage sludge

2007 ◽  
Vol 56 (2) ◽  
pp. 187-192 ◽  
Author(s):  
M.A. Bustamante ◽  
C. Paredes ◽  
R. Moral ◽  
J. Moreno-Caselles ◽  
M.D. Pérez-Murcia ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Sewage Sludge ◽  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Exchange Capacity ◽  
Total N ◽  
Organic C ◽  
Mediterranean Countries ◽  
Feasible Option ◽  
Total Organic C

The winery and distillery wastes (grape stalk and marc (GS and GM, respectively), wine lees (WL) and exhausted grape marc (EGM)) are produced in great amounts in the Mediterranean countries, where their treatment and disposal are becoming an important environmental problem, mainly due to their seasonal character and some characteristics that make their management difficult and which are not optimised yet. Composting is a treatment widely used for organic wastes, which could be a feasible option to treat and recycle the winery and distillery wastes. In this experiment, two different piles (pile 1 and 2) were prepared with mixtures of GS, GM, EG and sewage sludge (SS) and composted in a pilot plant by the Rutgers static pile composting system. Initially, GS, GM and EGM were mixed, the pile 1 being watered with fresh collected vinasse (V). After 17 days, SS was added to both piles as a nitrogen and microorganisms source. During composting, the evolution of temperature, pH, electrical conductivity, total organic C, total N, humic acid-like C and fulvic acid-like C contents, C/N ratio, cation exchange capacity and germination index of the mixtures were studied. The addition of V in pile 1 produced higher values of temperature, a greater degradation of the total organic C, higher electrical conductivity values and similar pH values and total N contents than in pile 2. The addition of this effluent also increased the cation exchange capacity and produced a longer persistence of phytotoxicity. However, both piles showed a stabilised organic matter and a reduction of the phytotoxicity at the end of the composting process.

scholarly journals Pertumbuhan Tanaman Pamelo (Citrus maxima (Burm.) Merr.) pada Berbagai Komposisi dan Volume Media Tanam

2016 ◽  
Vol 7 (1) ◽  
pp. 40
Author(s):  
Arifah Rahayu ◽  
, Setyono ◽  
Slamet Susanto
Keyword(s):  
Plant Height ◽  
Particle Density ◽  
Exchange Capacity ◽  
Leaf Number ◽  
Rice Hull ◽  
Media Composition ◽  
Root Volume ◽  
Randomized Design ◽  
Two Factors ◽  
Media Volume

<p>ABSTRACT</p><p><br />This study was aimed at determining the planting media composition and media volume for pummelo growth. A complete randomized design with two factors was arranged in this experiment. The first factor was planting media composition, consisting of (1) rice hull charcoal : soil = 1 : 1, (2) cocopeat : soil = 1 : 1, (3) cocopeat : rice hull charcoal = 1 : 1, (4) rice hull charcoal : cocopeat : soil = 1 : 1 : 1, and (5) soil as control. The second factor was media volume, namely 10, 20, and 30 L. The results showed that plant height, leaf number, root volume and P leaf concentration of pummelo grown in 30 L media were significantly higher than those of pummelo grown in 10 L media, but were not different from those of grown in 20 L media, except for leaf number. Plant height, root volume and N leaf content of pummelo grown in rice hull charcoal : soil relatively were higher than those grown in rice hull charcoal : cocopeat. Planting media composition of rice hull charcoal : cocopeat had N and C content, C/N ratio, organic matter, K2O and cation exchange capacity higher, but had water content, bulk density, particle density lower than other growing medium. The most suitable planting medium for potted pummelo was rice hull charcoal : soil, and 20 L medium volume was still suitable until 24 WAP (weeks after planting).</p><p>Key words: cocopeat, N and P leaves content, rice hull charcoal, root volume,</p><p>ABSTRAK</p><p><br />Penelitian ini bertujuan untuk mengetahui komposisi dan volume media tanam yang sesuai untuk pertumbuhan tanaman pamelo. Penelitian ini menggunakan rancangan acak lengkap (RAL) faktorial dengan dua faktor yaitu komposisi media tanam dan volume media tanam. Komposisi media tanam terdiri atas lima taraf, yaitu (1) arang sekam : tanah (1:1), (2) cocopeat : tanah (1:1), (3) cocopeat : arang sekam (1:1), (4) arang sekam : cocopeat : tanah (1:1:1), dan (5) tanah (kontrol), sedangkan volume media tanam terdiri atas tiga taraf (10, 20, dan 30 L). Hasil penelitian menunjukkan bahwa tinggi, jumlah daun, volume akar dan kandungan P daun tanaman pamelo pada volume media tanam 30 L lebih besar dibandingkan dengan pada media 10 L, tetapi tidak berbeda nyata dengan pada media tanam 20 L, kecuali jumlah daun. Tinggi tanaman, volume akar dan kandungan N daun tanaman pamelo pada media arang sekam : tanah relatif lebih besar dibandingkan dengan pada media arang sekam : cocopeat. Media tanam arang sekam : cocopeat memiliki kandungan N, C, nisbah C/N, bahan organik, K2O dan nilai tukar kation lebih tinggi, tetapi kadar air, bobot isi dan bobot jenis lebih rendah dibandingkan dengan media tanam lain. Dengan demikian, komposisi media tanam yang paling sesuai untuk tanaman pamelo adalah arang sekam : tanah dan volume media tanam 20 L masih sesuai untuk tanaman pamelo hingga 24 MST (minggu setelah tanam).</p><p>Kata kunci: arang sekam, cocopeat, kandungan N dan P daun, volume akar</p>

Determination of gypsum and cation exchange capacity in arid soils by a resin method

Geoderma ◽  
1986 ◽  
Vol 39 (1) ◽  
pp. 67-77 ◽  
Author(s):  
H. Frenkel ◽  
Z. Gerstl ◽  
Jan Renger van de Veen
Keyword(s):  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Exchange Capacity ◽  
Arid Soils ◽  
Resin Method

scholarly journals Cooling and concentration of nutrient solution in hydroponic lettuce crop

2013 ◽  
Vol 31 (2) ◽  
pp. 287-292 ◽  
Author(s):  
Nilton N Cometti ◽  
Diene M Bremenkamp ◽  
Karla Galon ◽  
Leonardo R Hell ◽  
Marinaldo F Zanotelli
Keyword(s):  
Electrical Conductivity ◽  
Nutrient Solution ◽  
Growth And Development ◽  
Maximum Temperature ◽  
Root Volume ◽  
Espírito Santo ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Espirito Santo

The study was conducted in greenhouse at horticulture department of the Instituto Federal do Espírito Santo, Campus Itapina, Colatina, northwestern Espírito Santo state, Brazil, with the objective of evaluating the effect of cooling and electrical conductivity of nutrient solution on growth and development of lettuce cv. Vitória de Santo Antão in hydroponics. The study was conducted in a completely randomized design with two factors (control of the maximum temperature of the nutrient solution: 26ºC and without control; and electrical conductivity, EC, of the solution: 1, 2 and 3 dS m-1) with three repetitions. The plants were harvested fifty-two days after sowing (DAS). We evaluated the dry and fresh mass of leaves, stems and roots, stem and root length, root volume and plant water content (%). The temperature of the nutrient solution influenced the behavior of lettuce influenced by the electrical conductivity, showing that the increase of the EC did not reduce the lettuce productivity when the maximum temperature of the nutrient solution is limited, which in this experiment was tested at 26ºC. The cooling of the nutrient solution provided greater accumulation of mass and a higher water percentage in plants, increasing the productivity of hydroponic lettuce in tropical climate.

scholarly journals Irreversible sorption of carbofuran by moderately acidic soil amended with biochar

2020 ◽  
Vol 10 (2) ◽  
pp. 5224-5228
Keyword(s):  
Electrical Conductivity ◽  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Dry Matter ◽  
Agricultural Waste ◽  
Exchange Capacity ◽  
Water Holding Capacity ◽  
Dry Matter Production ◽  
Matter Production ◽  
Water Holding

An ecofriendly technique to on farm burning of biomass by making biochar from agricultural waste was provided. Characteristic studies of biomass and biochar such as SEM, Ultimate and proximate analysis, pH, Cation exchange capacity, Water holding capacity, Electrical conductivity, Soil organic matter and Dry matter production were examined. Adsorption and desorption of carbofuran in soil were studied in batch experiment mode. From the experimental studies, it was observed that pH, Cation exchange capacity, Water holding capacity, Electrical Conductivity, Soil organic content and dry matter production increases with biochar addition. Adsorption Studies show that carbofuran adsorbed with control is 0.45 mg/g whereas with 3%BC it was 6.375 mg/g and desorption studies show that with 3% biochar carbofuran desorption is less. Hence Capsicum Annuam Biochar could be one of the promising option for improving the soil health as well as for adsorbing the pesticides.

Zinc Soil Test Calibration Based on 0.1 N HCl Extractable Zinc and Cation Exchange Capacity from Upland Soils of Northern Nigeria

2006 ◽  
Vol 6 (1) ◽  
pp. 179-182 ◽  
Author(s):  
N. Abdu . ◽  
A.A. Yusuf . ◽  
A. Abdulkadir . ◽  
U.L. Arunah . ◽  
V.O. Chude . ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Exchange Capacity ◽  
Soil Test ◽  
Northern Nigeria ◽  
Upland Soils
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