scholarly journals Aluminium in Acid Soils: Chemistry, Toxicity and Impact on Maize Plants

10.5772/33077 ◽  
2012 ◽  
Author(s):  
Dragana Krstic ◽  
Ivica Djalovic ◽  
Dragoslav Nikezic ◽  
Dragana Bjelic
Keyword(s):  
Acid Soils ◽  
Maize Plants

Use of alkaline flyash-based products to amend acid soils: Plant growth response and nutrient uptake

Soil Research ◽  
2008 ◽  
Vol 46 (7) ◽  
pp. 578 ◽  
Author(s):  
K. M. Spark ◽  
R. S. Swift
Keyword(s):  
Plant Growth ◽  
Growth Response ◽  
Zea Mays L ◽  
Plant Biomass ◽  
Base Material ◽  
Acid Soils ◽  
Application Rates ◽  
Pot Trials ◽  
Copper Zinc ◽  
Maize Plants

Vast quantities of flyash are generated annually by the burning of coal in the power industry, with most of this material being stockpiled with little prospect of being utilised at present. Two alkaline flyash-based products (FAP) for use as soil amendments (FAP1 and FAP2) have been assessed using glasshouse pot trials to determine the suitability of using these products to treat acid soils. The products both contain ~80% flyash which originated from coal-fired electricity generation. The acid soils used in the study were 2 Podsols and a Ferrosol, all originating from south-east Queensland and ranging in pH (1 : 5 suspension in water) from 4 to 5.5. The flyash products when applied to the soil significantly enhanced growth of maize plants (Zea mays L.), with optimal application rates in the range 1.25–5% w/w. The FAP/soil mixtures and plants were analysed using a range of methods including extraction with DTPA, and plant biomass (aboveground dry matter). The results indicate that in addition to the liming effect, the flyash in the alkaline flyash products may enhance plant growth as a result of increasing the uptake of micro-nutrients such as copper, zinc, and manganese. The study suggests that flyash has the potential to be used as a base material in the production of soil amendment materials that can change soil pH and act as a fertiliser for certain soil micro-nutrients such as Cu, Mn, and Zn.

scholarly journals Production of soybean and maize plants cultivated in acid soils with high contents of exchangeable aluminum

2019 ◽  
Vol 14 (3) ◽  
pp. 1-11
Author(s):  
G.O.M. Cunha ◽  
J.A. Almeida ◽  
P.R. Ernani ◽  
C.A. Souza ◽  
L.C. Gatiboni ◽  
...  
Keyword(s):  
Acid Soils ◽  
Exchangeable Aluminum ◽  
Maize Plants

scholarly journals The effects of some agrotechnical measures on the uptake of nickel by maize plants

2009 ◽  
Vol 74 (8-9) ◽  
pp. 1009-1017 ◽  
Author(s):  
Branka Zarkovic ◽  
Srdjan Blagojevic
Keyword(s):  
Soil Acidification ◽  
Acid Soils ◽  
Essential Element ◽  
Mineral Fertilizers ◽  
Alluvial Soils ◽  
Toxic Heavy Metals ◽  
Soil Liming ◽  
Maize Plants ◽  
Set Up ◽  
Positive Effect

Nickel is a non-essential element in the nutrition of the majority of plant species and can be toxic to plants when its concentration in soils is high. Several soil properties have an effect on the uptake of this heavy metal by plants. The purpose of this investigation was to determine the effect of fertilization, soil acidification and liming on the uptake of Ni by maize plants grown on some alluvial soils. A pot experiment with maize plants grown on soils having various properties and elevated content of Ni was set up. The experiment lasted six weeks. The roots and shoots were analyzed for the concentration of Ni. From the results of the experiment, it can be concluded that the roots had higher concentrations of Ni than the shoots. The addition of mineral fertilizers (without application of other measures) mainly decreased the concentration and uptake of Ni by the roots and the transport of Ni to the shoots. Soil acidification (to pH 4.5) caused an increase in the Ni concentration in the plants and in its removal from the soil. Liming of acid soils had a positive effect on the uptake of Ni by young maize plants. The obtained results are important from the standpoint of reducing the pollution of plants by potentially toxic heavy metals.

Use of alkaline flyash-based products to amend acid soils: Extractability of selected elements and their uptake by plants

Soil Research ◽  
2008 ◽  
Vol 46 (7) ◽  
pp. 585 ◽  
Author(s):  
K. M. Spark ◽  
R. S. Swift
Keyword(s):  
Acetic Acid ◽  
Plant Uptake ◽  
Zea Mays L ◽  
Acid Soils ◽  
Companion Paper ◽  
Acid Extract ◽  
Plant Availability ◽  
Amended Soils ◽  
Beneficial Effects ◽  
Maize Plants

In addition to promoting plant growth, the incorporation of flyash material into soil also has the potential to affect the solubility and plant availability of some elements. This paper reports on the effect of 2 flyash products (FAP) on the extractability and plant uptake as a function of pH of selected elements of concern in the environment: As, B, Cd, Co, Cu, Cr, Mn, Pb, Ni, and Zn. The results for the growth response of maize plants (Zea mays L.) in the FAP-amended soils have been reported in a companion paper. The addition of the FAP to the soils used in this study at rates up to 5% w/w resulted in increased levels of Cu, Mn, Ni, As, and Co in an acetic acid extract. The levels of Cr, Mn, Ni, Pb, Zn, As, and Co in these extracts all showed a dependency on pH for some soils. Maize plants grown in the amended soils exhibited an increase in the plant uptake of Cu, Mn, and Ni in some soils. However, none of the elements studied increased the plant uptake to levels which would generally be considered toxic to plants or cause problems in the food chain. The presence of the FAP decreased the plant availability of Ni at low pH and levels of Mn and Cd in the acetic acid extract were decreased, most likely due to sorption of these elements by the FAP. There is no evidence that either the flyash alone, or the 2 FAP used in this study would pose a threat to plants or the environment when used at levels of up to 5% w/w. Possible beneficial effects for the environment were observed as the incorporation of FAP into soils has the capacity to reduce the uptake and potential toxicity of Cd, Ni, or Mn in some soils.

scholarly journals Reducing Acidity of Tropical Acid Soil to Improve Phosphorus Availability and Zea mays L. Productivity through Efficient Use of Chicken Litter Biochar and Triple Superphosphate

2020 ◽  
Vol 10 (6) ◽  
pp. 2127 ◽  
Author(s):  
Ali Maru ◽  
Ahmed Osumanu Haruna ◽  
Audrey Asap ◽  
Nik Muhamad Abd. Majid ◽  
Nathaniel Maikol ◽  
...  
Keyword(s):  
Dry Matter ◽  
Acid Soil ◽  
Chemical Properties ◽  
Acid Soils ◽  
Mineral Acid ◽  
Dry Matter Yield ◽  
Chicken Litter ◽  
Maize Plants ◽  
The Right ◽  
Fe Ions

Phosphorus is a macronutrient which plays an important role in plant metabolism, growth, and development. However, in tropical acid soils, P fixation is high because of significant amounts of Al and Fe ions. Al and Fe ions can reduce diffusion of P into plant roots. Low absorption of P at initial growth of most plants causes stunting and slow growth of plant leaves. This process reduces photosynthesis. Chicken litter biochar (CLB) had been used on tropical acid soils to improve total P, available P, organic P, and inorganic fractions of P. Moreover, CLB is able to reduce exchangeable acidity, Fe, and Al ions in mineral acid soils because of the reactive surfaces of this organic amendment. However, there is dearth of information on the effects of the right combination of CLB and triple superphosphate (TSP) on the aforementioned soil chemical properties and crop productivity. To this end, the objectives of this study were to improve P: (i) Availability in a mineral acid soil and (ii) uptake, agronomic efficiency, and dry matter yield of Zea mays L. using the right amounts of TSP and CLB. Combinations of 75%, 50%, and 25% CLB (based on recommended 5 t ha−1) and TSP (based on recommended P fertilization for maize) were evaluated in a pot study. Selected soil chemical properties, maize plants nutrient uptake, growth variables, and dry matter yield were determined using standard measures. Results showed that 25% and 50% biochar of 5 t ha−1 with 75% TSP can increase soil P availability, recovery, agronomic use efficiency, and dry matter yield of maize plants. These optimum rates can also reduce P fixation by Al and Fe ions. Therefore, soil and maize productivity can be improved by using CLB (25% and 50% of 5 t ha−1) and TSP (75% of conventional rate) to increase nutrients availability especially P.

Nutrient transfer between the root zones of soybean and maize plants connected by a common mycorrhizal mycelium

1991 ◽  
Vol 82 (3) ◽  
pp. 423-432 ◽  
Author(s):  
Gabor J. Bethlenfalvay ◽  
Maria G. Reyes-Solis ◽  
Susan B. Camel ◽  
Ronald Ferrera-Cerrato
Keyword(s):  
Nutrient Transfer ◽  
Root Zones ◽  
Maize Plants
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