Vertisol soils of the tropics and sub-tropics: their management and use

Jewitt, T. N.; Law, R.; Virgo, K.J.

doi:10.1177/003072707901000106

Cited by 26 publications

(11 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For the very low nitrogen content found in these soils, many agronomists have conducted experiments in similar soils in the central clay plain of Sudan and showed the need for nitrogen fertilizers [5]. It is also found, that for the efficient management of nitrogen and increased crop yields, nitrogen has to be applied with phosphorus fertilizers [6], [32], [27]; [23].…”

Section: Fertility and Fertilizationmentioning

confidence: 99%

Studying the Characteristics of Vertisols to Set Up Field Management Practices at Dinder Area (Sennar State - Sudan)

Ali

Aitken²,

Munro³

2017

AIVP

View full text Add to dashboard Cite

The development of irrigated agriculture in Dinder area was part of the program to heighten the Rosaries Dam built on the Blue Nile and irrigate more lands on both banks of the river. The Dinder Area on the right bank of the river encompasses two parts, Dinder North (DN) and Dinder South (DS). The Dinder North area is situated between Dinder River in the west and Khor Al Atshan in the north east. The Dinder south area lies between Dinder River to the north east and Khor Al Aqalayin in the west. The area of Dinder is nearly flat to very slightly undulating with predominantly cracking clay soils (Vertisols). The soil study area is in semi-arid zone and experiences rainfall in the order of 500 mm in its northern edge, increasing to some 800mm at its southern boundary near Dinder National Reserve Park. This soil study has been based on semi-detailed soil survey data [13] with the key specifications are a field density of 1 observation each 150 ha and map scales of 1:50,000 and 1:100,000. Previously published soil study information was reviewed and incorporated in the findings and the database of this study. The Vertisols have high potential for crop production, but some constraints emerge affecting crop performance and decreasing yields. Those limitations are aspects of land degradation, manifested in, 1) water erosion and; 2) deterioration of physical and chemical properties. Continuous cropping of Vertisols, through time, can lead to compaction and in some cases development of a hardpan in the subsurface, reducing porosity, intensity of cracking and obliterating water movement. Such adverse effects are indicators of degraded soil physical properties. The aim of this study is to show the pedological characteristics of the Vertisols of Dinder area and as well to recommend on their use and management in order to minimize the concurrence management hazards. Field management procedures should adhere to the recommended land and crop management systems. Parallel to this approach, the fertility status is likely to decline due to intensive farming of some nutrient-depleting crops, but this nutrient deficiency is correctable through implementing a fertilizer program. Those technical inputs if properly used and practiced they are expected to sustain crop production.

show abstract

Section: Fertility and Fertilizationmentioning

confidence: 99%

Studying the Characteristics of Vertisols to Set Up Field Management Practices at Dinder Area (Sennar State - Sudan)

Ali

Aitken²,

Munro³

2017

AIVP

View full text Add to dashboard Cite

show abstract

“…Estes sais, dependendo das condições, poderão acumular-se no solo e atingir níveis que afetam a capacidade produtiva (Richards, 1954;Harding et al, 1958), acarretando problemas de ordem nutricional para as culturas (Harding et al, 1958, Black, 1968. Inúmeros pesquisadores têm discutido e demonstrado experimentalmente as correlações existentes entre parâmetros físicos e químicos do solo com a qualidade e quantidade de água, intensidade de cultivo, uso de fertilizantes e manejo do solo e das culturas (Lewis & Juve, 1956;Longenecker & Lyerly, 1959, Jewitt et al, 1979Gale et al, 1967;McCree & Richardson, 1987).…”

Section: Abstract: Beta Vulgaris L Irrigationunclassified

Utilização de água salina e condicionador de solo na produção de beterraba no semi-árido brasileiro

et al. 1999

View full text Add to dashboard Cite

O experimento foi conduzido no Campo Experimental da Embrapa Semi-Árido em Petrolina - PE, no primeiro semestre de 1997 com o objetivo de avaliar o efeito de diferentes níveis de salinidade da água de irrigação e do condicionador de solo Sper Sal (ácido polimaléico) na produção de beterraba (Beta vulgaris L.), cultivar Early Wonder. O delineamento experimental foi de blocos ao acaso com quatro repetições. Os tratamentos foram: água com condutividade elétrica de 0,1 (água do Rio São Francisco - testemunha) 4 e 8 dS/m e água com condutividade elétrica 0,1, 4 e 8 dS/m mais Sper Sal, com parcelas de 2 m². Os resultados obtidos mostraram que as produtividades variaram de 20,2 a 65,4 t/ha para os tratamentos irrigados com água salina mais Sper Sal e água do Rio São Francisco, respectivamente. Não se verificou diferença significativa na produtividade quando do uso de água com níveis de salinidade de 4 e 8 dS/m, cujas produtividades foram 29,4 e 26,3 t/ha respectivamente. Nos tratamentos com Sper Sal, observou-se que na concentração salina de 4 dS/m, o condicionador de solo demonstrou ser mais eficiente, em relação à concentração de 8 dS/m.

show abstract

“…For example, the clay fraction in Sudanese Vertisols contains more than 90% montmorillonite (Jewitt et at., 1979). reported that the soils may be derived from basalt, shales, limestone, volcanic rocks, tuffs, gneisses, schists, and basic alluvium or colluvium materials.…”

Section: Major Characteristics Of Sat Vertisols and Alfisolsmentioning

confidence: 99%

Advances in Soil Science

1985

Advances in Soil Science

View full text Add to dashboard Cite

Vertisol soils of the tropics and sub-tropics: their management and use

Cited by 26 publications

References 3 publications

Studying the Characteristics of Vertisols to Set Up Field Management Practices at Dinder Area (Sennar State - Sudan)

Studying the Characteristics of Vertisols to Set Up Field Management Practices at Dinder Area (Sennar State - Sudan)

Utilização de água salina e condicionador de solo na produção de beterraba no semi-árido brasileiro

Advances in Soil Science

Contact Info

Product

Resources

About