Co-Application of Charcoal and Wood Ash to Improve Potassium Availability in Tropical Mineral Acid Soils

Paramisparam, Puvan; Ahmed, Osumanu Haruna; Omar, Latifah; Ch’ng, Huck Ywih; Johan, Prisca Divra; Hamidi, Nur Hidayah

doi:10.3390/agronomy11102081

Cited by 16 publications

(7 citation statements)

References 217 publications

(244 reference statements)

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“…Nevertheless, the inconsistent and slow effects of these organic amendments could be influenced by the recalcitrant property of charcoal, the raw materials used, and the handling methods. Besides, an unbalanced use of charcoal and sago bark ash can cause heavy metal toxicity, phosphorus fixation by calcium, soil salinization, and environmental pollution [27][28][29]. Therefore, amending soils with the right amount of inorganic liming materials which have relatively high neutralizing values and reactivity is essential.…”

Section: Introductionmentioning

confidence: 99%

Soil Nutrient Retention and pH Buffering Capacity Are Enhanced by Calciprill and Sodium Silicate

Ahmed

Jalloh

et al. 2022

Agronomy

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In the tropics, warm temperatures and high rainfall contribute to acidic soil formation because of the significant leaching of base cations (K+, Ca2+, Mg2+, and Na+), followed by the replacement of the base cations with Al3+, Fe2+, and H+ ions at the soil adsorption sites. The pH buffering capacity of highly weathered acid soils is generally low because of their low pH which negatively impacts soil and crop productivity. Thus, there is a need to amend these soils with the right amount of inorganic liming materials which have relatively high neutralizing values and reactivity to overcome the aforementioned problems. Soil leaching and the pH buffering capacity studies were conducted to determine whether the co-application or co-amendment of a calcium carbonate product (Calciprill) and sodium silicate can improve soil nutrient retention and pH buffering capacity of the Bekenu series (Typic Paleudults). A 30 day soil leaching experiment was carried out using a completely randomized design with 16 treatments and 3 replications after which the leached soil samples were used for a pH buffering capacity study. The Calciprill and sodium silicate treatments significantly improved soil pH, exchangeable NH4+, available P, exchangeable base cations, Effective Cation Exchange Capacity (ECEC), and pH buffering capacity in comparison with the untreated soil. The improvements were attributed to the alkalinity of Calciprill and sodium silicate due to their high inherent K+, Ca2+, Mg2+, and Na+ contents. The neutralizing effects of the amendments impeded the hydrolysis of Al3+ (96.5%), Fe2+ (70.4%), and Mn2+ (25.3%) ions resulting in fewer H+ ions being produced. The co-application of Calciprill and sodium silicate reduced the leaching of Ca2+ (58.7%) and NO3− (74.8%) from the amended soils. This was due to the ability of sodium silicate to reduce soil permeability and protect the Calciprill and available NO3− from being leached. This also improved the longevity of Calciprill to enhance the soil pH buffering capacity. However, the amounts of NH4+, P, and base cations leached from the amended soils were higher compared with the un-amended soils. This was due to the high solubility of sodium silicate. The most suitable combination amendment was 7.01 g Calciprill and 9.26 g sodium silicate (C2S5) per kilogram soil. It is possible for farmers to adopt the combined use Calciprill and sodium silicate to regulate soil nutrient retention and improve the soil pH buffering capacity of highly weathered acidic soils. This will enhance soil and crop productivity.

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Section: Introductionmentioning

confidence: 99%

Soil Nutrient Retention and pH Buffering Capacity Are Enhanced by Calciprill and Sodium Silicate

Ahmed

Jalloh

et al. 2022

Agronomy

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“…As for potassium, there are few studies of K dynamics in post-mining soils [ 69 ], but many authors report that its availability to plants decreases with the soil pH dropping below neutral [ 70 ]. K is leached from the rhizosphere in the presence of clay minerals controlled by the low pH [ 71 ]. Depending on the soil characteristics, K availability can also decrease at pHs towards 8 [ 72 ].…”

Section: Discussionmentioning

confidence: 99%

A Commercial Arbuscular Mycorrhizal Inoculum Alleviated the Effects of Acid Water on Lupinus angustifolius Grown in a Sterilized Mining Dump

Neagoe

Iordache

2023

Plants

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Lupinus species have been sporadically reported to be colonized by arbuscular mycorrhizal fungi (AMF). The interactions between AMF and lupine plants could also be non-symbiotic, from positive to negative, as controlled by the stress conditions of the plant. The goal of the study was to reveal the existence of such positive interactions and provide preliminary data for a myco-phytoremediation technology of mining dumps using L. angustifolius as a first crop. The objective was to test the hypothesis that the AMF inoculation of an acidified dump material contaminated with heavy metals would improve the growth of L. angustifolius and decrease oxidative stress. The design consisted of a one-month bivariate pot experiment with plants grown in a mining dump soil inoculated and not inoculated with a commercial AMF inoculum sequestered in expanded clay and watered with acidic and neutral water. There was no AMF root colonization under the experimental conditions, but under neutral and acidic water conditions, the phosphorus concentrations in roots and leaves increased, and the superoxide dismutase and peroxidase activities significantly decreased due to AMF inoculation. The increase in leaf phosphorus concentration was correlated with the decrease in peroxidase activity. The fresh weight of shoots and leaves significantly increased due to the commercial inoculum (under acidic water conditions). At the end of the experiment, the ammonium concentration in the substrate was higher in the inoculated treatments than in the not inoculated ones, and the concentrations of many elements in the dump material decreased compared to the start of the experiment. A comprehensive discussion of the potential mechanisms underlying the effects of the commercial AMF inoculum on the non-host L. angustifolius is completed.

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“…Biochar was reported to be able to increase CEC compared to treatment without biochar ranging from 17 to 220% [16]. A single treatment of P6 fertilizer (urea+LOF+NFB) produces the highest CEC value because LOF contains humic and fulvic acids which have negatively charged functional groups such as carboxyl and carbonyl [17]. Research [18] reported that LOF from banana stems and coconut husks increased CEC.…”

Section: Cation Exchange Capacity (Cec)mentioning

confidence: 99%

Utilization of organic ameliorants and fertilizers to increase Entisol total N through axis system fertigation in vertical cultivation

Tobing,

Ndua,

Hanas

2024

IOP Conf. Ser.: Earth Environ. Sci.

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The high porosity and low organic matter content of Entisol are the reasons that Nitrogen (N) is easily leached and lost due to evaporation. Application of organic ameliorants and fertilization is expected to increase total N in Entisol. To find out the effect of organic ameliorants and fertilizers on increasing total N through axis fertigation in vertical cultivation, this study was conducted using a divided plot design. The organic ameliorant treatment consisted of soil (A1) as control, A2 (soil:biochar)(1:1), A3 (soil:compost)(1:1), A4 (soil: biochar:compost)(1:1:1), while the fertilizer treatment consisted of P1 (urea), P2 (liquid organic fertilizer [LOF]), P3 (urea + liquid organic fertilizer[LOF]), P4 (urea + nitrogen fixing-bacteria[NFB]), P5 (liquid organic fertilizer[LOF] + nitrogen-fixing bacteria[NFB]), and P6 (Urea + liquid organic fertilizer[LOF] + nitrogen-fixing bacteria[NFB]). The results showed that the increase in total N occurred after the addition of organic ameliorant and fertilizer. The single treatment with ameliorant ratio of 1:1:1 (soil: biochar: compost) (A4) showed the highest increase in total N, which was 1.08% and was significantly different from the other treatments. The single treatment of fertilizer type with a combination of 3 types of fertilizer namely urea + LOF + NFB (P6) produced the highest total N (0.95%).

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Co-Application of Charcoal and Wood Ash to Improve Potassium Availability in Tropical Mineral Acid Soils

Cited by 16 publications

References 217 publications

Soil Nutrient Retention and pH Buffering Capacity Are Enhanced by Calciprill and Sodium Silicate

Soil Nutrient Retention and pH Buffering Capacity Are Enhanced by Calciprill and Sodium Silicate

A Commercial Arbuscular Mycorrhizal Inoculum Alleviated the Effects of Acid Water on Lupinus angustifolius Grown in a Sterilized Mining Dump

Utilization of organic ameliorants and fertilizers to increase Entisol total N through axis system fertigation in vertical cultivation

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