Acid Soils Nitrogen Leaching and Buffering Capacity Mitigation Using Charcoal and Sago Bark Ash

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

doi:10.3390/su132111808

Cited by 6 publications

(3 citation statements)

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“…For example, the combined use of charcoal and sago bark ash increased soil pH and detoxified Al 3+ and Fe 2+ ions via chelation because of high inherent base cations in sago bark ash when in contact with soil water. The addition of charcoal increases the number of negativelycharged sites which improves soil CEC to retain more exchangeable base cations (K + , Ca 2+ , Mg 2+ , and Na + ) at the functional groups such as carboxyl (R-COOH), phenolic (R-OH), and amine (R-NH 2 ) groups and the ability to buffer more H + ions [25,26]. 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.…”

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

Self Cite

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“…Soil acidity is one of the top five global constraints on boosting agricultural output. Aluminium (Al), manganese (Mn), and iron (Fe) toxicities, as well as shortages in macro and micronutrients, are characteristics of highly weathered tropical acid soils (Hamidi et al, 2021). Most of the acidic soils in the tropics, such as Ultisols and Oxisols lack organic matter, which can supply plant nutrients and improve the structure of mineralised soils (Paramisparam et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Response of growth performance and yield of butternut squash(Cucurbita moschata Duch Ex Poir) cultivar Waltham under differentdosages of bokashi application

Che Ya,

Ch’ng,

Susanto

et al. 2023

JANS

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Butternut squash, also known as Cucurbita moschata, is a variety of pumpkin with promising commercial potential. However,most of the soils in the tropics are acidic and lack organic matter.The addition of organic material such as bokashi is essential inimproving the low soil pH and soil quality. Therefore, this study aimed to elucidate the effects of different rates of bokashi application on the growth performance and yield of butternut squash cultivated on tropical acid soil. A planting experiment was carried out from July until October 2022. A total of 36 planting beds were prepared, and each bed was constructed in 100 cm x 400 cm, consisting of 8 plants bed-1. The experiment was arranged in a Randomized Complete Block design. A total of three different rates of bokashi were applied to the soil prior to planting, namely 0 (control), 4,000, and 8,000 kg ha-1. A 12,000 kg ha-1 of commercial peat moss (Holland Free Peat) was also applied to compare bokashi and peat moss (the common planting medium used in most planting activities). The maximum plant height growth and leaf production for butternut squash was around 7-8th week. Application rate of 8,000 kg ha-1 bokashi contributed to significantly highest plant height (352.1 cm), number of leaves (86 leaves), and yield of Waltham butter squash per plant (1.5 kg plant-1). Multiple planting cycles should be carried out further to elucidate the bokashi's residual effect on nutrient supply to butternut squash cultivation.

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“…Moreover, considerably high doses of heavy metals that can exert negative effects on soil biota may be activated or released under acidified soil conditions [18,19]. Therefore, soil acidification is a severe environmental problem that has been highlighted and studied for decades [3,20,21].…”

Section: Introductionmentioning

confidence: 99%

Data Integration Analysis Indicates That Soil Texture and pH Greatly Influence the Acid Buffering Capacity of Global Surface Soils

et al. 2022

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Soil acidification is a global environmental issue that decreases soil functions, and it has been significantly accelerated by anthropogenic activities in recent decades. Soils can resist acidification upon receiving acid inputs due to the resistance or/and resilience capacity of soils, which is termed the acid buffering capacity of soils, and it is often indicated by the soil pH buffering capacity (pHBC). An increasing number of studies have been conducted to quantify soil pHBC at various sites, but to date, integration of global data is lacking; therefore, the variations in large-scale soil pHBC and the factors that influence these variations are still unclear. In this study, we collected previously published data on soil pHBC to analyze its variations on a large scale, as well as investigate the underlying factors influencing these variations. The results showed that soil pHBC varied substantially from site to site, with a mean of 51.07 ± 50.11 mmol kg−1 pH−1. Soil texture and pH, separately or collectively, explained a considerable proportion of the total variation of global soil pHBC. It is well-established that a series of processes contribute to the soil acid buffering capacity in different pH ranges, and the global data analyses showed that pH 5.5 could be a key threshold value; different buffering systems may be active at pH > 5.5 and pH < 5.5. Moreover, tropical soils were more acid-sensitive than temperate and subtropical soils, and forest soils had significantly lower soil pHBCs than grassland and cropland soils. This could be attributed in part to the different soil properties, such as soil texture or pH, among the different climatic zones and ecosystems.

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Acid Soils Nitrogen Leaching and Buffering Capacity Mitigation Using Charcoal and Sago Bark Ash

Cited by 6 publications

References 50 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

Response of growth performance and yield of butternut squash(Cucurbita moschata Duch Ex Poir) cultivar Waltham under differentdosages of bokashi application

Data Integration Analysis Indicates That Soil Texture and pH Greatly Influence the Acid Buffering Capacity of Global Surface Soils

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