Characterization of soil fertility using the Rasch model

Moral, Francisco J.; Rebollo, Francisco J.

doi:10.4067/s0718-95162017005000035

Cited by 20 publications

(13 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These properties may have influenced the better sandy clay loam performance in maize yield. Moral and Rebollo [ 48 ] suggested that these properties may have a high influence on soil fertility.…”

Section: Discussionmentioning

confidence: 99%

Heat Stress Effect on the Grain Yield of Three Drought-Tolerant Maize Varieties under Varying Growth Conditions

Chukwudi

Kutu

Mavengahama

2021

Plants

View full text Add to dashboard Cite

A rise in global temperature will reduce maize yield, particularly in Africa, where maize is a staple food. Therefore, improving maize yield under heat stress will promote food security in the region. The objective of this study was to assess the influence of heat stress on the grain yield of drought-tolerant maize varieties under varied growth conditions. The experimental design used was a 2 × 3 × 3 × 2 factorial fitted into a completely randomized design with four replications. The factors were heat stress, maize variety, soil amendment, and soil type. The results showed a better yield from sandy clay loam over loamy sand soil. Varieties WE5323 and ZM1523 amended with poultry manure gave the best yield under the non-heat and heat-stressed environments, respectively. Heat stress reduced the cob weight, grain weight, grain number, and stover dry weight by 64, 73, 69, and 23%, respectively. Grain number, grain weight, and cob weight were the most informative yield attributes in this study and should be considered in a maize selection program. The ranking for the maize varieties was WE5323 > ZM1523 > WE3128. Drought-tolerant maize varieties can be useful in heat stress mitigation. This information is useful for the simulation of maize yields for heat stress-prone areas in Sub-Saharan Africa.

show abstract

Section: Discussionmentioning

confidence: 99%

Heat Stress Effect on the Grain Yield of Three Drought-Tolerant Maize Varieties under Varying Growth Conditions

Chukwudi

Kutu

Mavengahama

2021

Plants

View full text Add to dashboard Cite

show abstract

“…Moral and Rebollo [75] characterized soil fertility using the Rasch Model and concluded that particle-size distribution, electrical conductivity, cation exchange capacity, pH, organic matter, and the primary nutrients (N, P, and K) are the most influential variables on soil fertility. They maintained that soil texture and pH influenced the extent to which nutrients are available to plants.…”

Section: Effects Of Soil Type On the Maize Growth Attributes And Dry ...mentioning

confidence: 99%

Influence of Heat Stress, Variations in Soil Type, and Soil Amendment on the Growth of Three Drought–Tolerant Maize Varieties

2021

View full text Add to dashboard Cite

Food security in sub–Saharan Africa is threatened by the increasing incidence of heat stress. Therefore, ameliorating heat stress influence in plants is vital for sustainable crop production. A 2 × 3 × 3 × 2 factorial experiment fitted into a completely randomized design with four replications was performed. The factors were heat stress, maize variety, soil amendment, and soil type. The results showed that heat stress exerted a depressive effect on maize growth and yield attributes. It reduced the leaf chlorophyll content, leaf area, plant height, stem diameter, dry biomass yield, and harvest index by 35%, 36%, 41%, 59%, and 78%, respectively. Sandy clay loam soil provided a better maize growth condition than loamy sand soil. Organic manure soil amendment improved maize growth attributes over the mineral fertilizer in the non–heat–stress environment and ameliorated the negative impact of heat stress in the heat–stress environment. The ranking of the attributes identified leaf area, dry biomass yield, stem diameter, and plant height as the most discriminating and representative attributes. These attributes should be considered in maize development projects for heat–stress prone areas. Selection of appropriate maize variety and accompanying soil amendment should be integrated into food security strategy as they influenced maize growth and yield under (non–)heat–stress conditions.

show abstract

“…This fact was more less confirmed in this research. Moral and Rebollo [50] deem the CEC a sensitive indicator for determining the soil's nutrient holding capacity, fertility, and long-term productivity. This parameter can be an additional characteristic to evaluate SOM quality in various ecosystems (fields, forests, etc.).…”

Section: Discussionmentioning

confidence: 99%

Fractionation of Soil Organic Matter into Labile and Stable Fractions

et al. 2021

View full text Add to dashboard Cite

The present study aims to test and evaluate the efficiency of a new modified method of organic matter evaluation. It allows the assessment of the quality and quantity of the primary soil organic matter and the stable organic fractions separately. The new method was tested in six soil samples of different localities in the Czech Republic. This method is based on observing reaction kinetics during the oxidation of soil organic matter and measuring the cation-exchange capacity of stable organic fractions. The results were compared with classical methods, which rely on the isolation of humic substances, determination of the content of humic acids and fulvic acids and their ratio CHA:CFA, quotient E4/6, and fractionation of soil organic matter according to resistance to oxidation. It turned out that the results of the new modified method are more sensitive in comparison with the results obtained by classical procedures. The linear regression demonstrated the dependence between the amounts of soil organic matter determined by the classical method compared with the modified method. Moreover, the new modified method was found to be faster and not demanding on laboratory equipment. The new method has been improved to be easily repeatable, and some shortcomings of the previous method were eliminated. Based on our results and other recent studies, the modified method may be recommended for the practical evaluation of soil organic matter conditions.

show abstract

Characterization of soil fertility using the Rasch model

Cited by 20 publications

References 14 publications

Heat Stress Effect on the Grain Yield of Three Drought-Tolerant Maize Varieties under Varying Growth Conditions

Heat Stress Effect on the Grain Yield of Three Drought-Tolerant Maize Varieties under Varying Growth Conditions

Influence of Heat Stress, Variations in Soil Type, and Soil Amendment on the Growth of Three Drought–Tolerant Maize Varieties

Fractionation of Soil Organic Matter into Labile and Stable Fractions

Contact Info

Product

Resources

About