Characterization and suitability assessment of soils in rain forest zone southwest Nigeria for cassava, maize and rice production using parametric method

Fawole Ayofe

Makale detayları

Characterization and suitability assessment of soils in rain forest zone southwest Nigeria for cassava, maize and rice production using parametric method

Yazarlar:

Fawole Ayofe

Yayıncı:

Harran University

Ana Başlıklar:

Toprak Etüd ve Haritalama | Toprak Bilimi ve Ekolojisi

Dergi:

Harran Tarım ve Gıda Bilimleri Dergisi Vol.27 Issue 4, pp.624-642

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001306192

pISSN:

2587-1358

Anahtar kelimeler:

Özet:

 The study assessed the properties of soils derived from medium-grained granite gneissdeveloped their taxonomic classification, established soil suitability groups for theselected arable crops production, and proposed sustainable land managementpractices to improve soil sustainability. Four soil profile pits were established along each of the two topo-sequences identified at the site in compliance with FAOUNESCOstandards. From the identified genetic horizons, soil samples were collected and subjected to routine physical and chemical analyses in the laboratory for characterization and suitability assessment. Data generated from the analyses weresubjected to descriptive and inferential statistics. Employing a parametric approachland attributes observed in the field were merged with those established in thelaboratory and crop requirements to produce soil suitability classes. The soils encountered were classed according to the USDA classification system as TypiIsohyperthermic Paleustult, Plinthic Isohyperthermic Paleustult, and aquic Psamment.They were further classified as Lixisol, Plinthic Lixisol, and Fluvisol WRB, in that order. The actual suitability revealed that all the soil series were presently unsuitable for cropproduction. Potentially Typic Isohyperthermic Paleustult soil was rated moderatelysuitable while Plinthic Isohyperthermic Paleustult and Ustipsamment soils were rated marginally suitable for cassava and maize production. All the soils, however, are both actual and potentially unsuitable for rice production. Slope, soil nutrient availability and nutrient retention together with physical characteristics were the key agronomicconstraints of the soils encountered in the studied area. Although the soils have acomplex relationship, the investigation indicated that they are not homogeneous and vary in potentiality with different physiographic units; as a result, differentmanagement techniques at different physiographic positions are required to ensure thesustainable use of soil resources.

 The study assessed the properties of soils derived from medium-grained granite gneissdeveloped their taxonomic classification, established soil suitability groups for theselected arable crops production, and proposed sustainable land managementpractices to improve soil sustainability. Four soil profile pits were established along each of the two topo-sequences identified at the site in compliance with FAOUNESCOstandards. From the identified genetic horizons, soil samples were collected and subjected to routine physical and chemical analyses in the laboratory for characterization and suitability assessment. Data generated from the analyses weresubjected to descriptive and inferential statistics. Employing a parametric approachland attributes observed in the field were merged with those established in thelaboratory and crop requirements to produce soil suitability classes. The soils encountered were classed according to the USDA classification system as TypiIsohyperthermic Paleustult, Plinthic Isohyperthermic Paleustult, and aquic Psamment.They were further classified as Lixisol, Plinthic Lixisol, and Fluvisol WRB, in that order. The actual suitability revealed that all the soil series were presently unsuitable for cropproduction. Potentially Typic Isohyperthermic Paleustult soil was rated moderatelysuitable while Plinthic Isohyperthermic Paleustult and Ustipsamment soils were rated marginally suitable for cassava and maize production. All the soils, however, are both actual and potentially unsuitable for rice production. Slope, soil nutrient availability and nutrient retention together with physical characteristics were the key agronomicconstraints of the soils encountered in the studied area. Although the soils have acomplex relationship, the investigation indicated that they are not homogeneous and vary in potentiality with different physiographic units; as a result, differentmanagement techniques at different physiographic positions are required to ensure thesustainable use of soil resources.

 The study assessed the properties of soils derived from medium-grained granite gneissdeveloped their taxonomic classification, established soil suitability groups for theselected arable crops production, and proposed sustainable land managementpractices to improve soil sustainability. Four soil profile pits were established along each of the two topo-sequences identified at the site in compliance with FAOUNESCOstandards. From the identified genetic horizons, soil samples were collected and subjected to routine physical and chemical analyses in the laboratory for characterization and suitability assessment. Data generated from the analyses weresubjected to descriptive and inferential statistics. Employing a parametric approachland attributes observed in the field were merged with those established in thelaboratory and crop requirements to produce soil suitability classes. The soils encountered were classed according to the USDA classification system as TypiIsohyperthermic Paleustult, Plinthic Isohyperthermic Paleustult, and aquic Psamment.They were further classified as Lixisol, Plinthic Lixisol, and Fluvisol WRB, in that order. The actual suitability revealed that all the soil series were presently unsuitable for cropproduction. Potentially Typic Isohyperthermic Paleustult soil was rated moderatelysuitable while Plinthic Isohyperthermic Paleustult and Ustipsamment soils were rated marginally suitable for cassava and maize production. All the soils, however, are both actual and potentially unsuitable for rice production. Slope, soil nutrient availability and nutrient retention together with physical characteristics were the key agronomicconstraints of the soils encountered in the studied area. Although the soils have acomplex relationship, the investigation indicated that they are not homogeneous and vary in potentiality with different physiographic units; as a result, differentmanagement techniques at different physiographic positions are required to ensure thesustainable use of soil resources.

 Çalışmada, orta taneli granit gnaysı üzerinde oluşmuş toprakların özellikleri değerlendirilmiş, bunların taksonomik sınıflandırması yapılmış, mısır, maniok ve pirinç üretimi için toprak uygunluk sınıfları belirlenmiş ve toprak sürdürülebilirliğini artırmak için bir arazi yönetimi stratejisi önerilmiştir. İki topografik kesitte, FAOUNESCO standartlarına uygun olarak her bir topografik kesit boyunca dört toprak profili açılmıştır. Tanımlanan genetik horizonlardan toprak örnekleri toplanmış ve karakterizasyon ve uygunluk değerlendirmesi için fiziksel ve kimyasal parametreler açısından analiz edilmiştir. Analizlerden elde edilen veriler tanımlayıcı ve çıkarımsal istatistiklere tabi tutulmuştur. Parametrik ve CBS tekniklerinin kullanılmasıyla, saha gözlemlerinde gözlemlenen arazi özellikleri, laboratuvarda belirlenenler ve bitki gereksinimleri ile birleştirilerek toprak uygunluk sınıfları oluşturulmuştur. Çalışma bölgesinde haritalanan topraklar, USDAye göre Typic isohyperthermic Paleustults, Plinthic isohyperthermic Paleustults ve Aquic Psamments olarak sınıflandırıldı. Bu topraklar WRBye göre sırasıyla Lixisol, Plinthic Lixisol ve Fluvisol olarak sınıflandırıldı. Gerçek uygunluk, tüm toprak serilerinin şu anda bitki üretimi için uygun olmadığını ortaya koymuştur. Potansiyel olarak Typic isohyperthermic Paleustults topraklar, orta derecede uygun olarak değerlendirilirken, Plinthic isohyperthermic Paleustults ve Aquic Psamments topraklar, maniyok ve mısır üretimi için marjinal olarak uygun olarak değerlendirilmiştir. Ancak, tüm topraklar hem gerçekte hem de potansiyel olarak pirinç üretimi için uygun değildir. Çalışma alanındaki toprakların başlıca tarımsal kısıtlamaları, toprak fiziksel özellikleri, besin maddelerinin bulunabilirliği, besin maddelerinin tutulması ve eğim idi. Çalışma, topraklar yakın ilişkili olmalarına rağmen, homojen olmadıklarını ve farklı fizyografik birimlerde farklı potansiyellere sahip olduklarını ortaya koymuştur; bu nedenle, toprak kaynaklarının sürdürülebilir kullanımını sağlamak için farklı fizyografik konumlarda farklı yönetim tekniklerine ihtiyaç duyulmaktadır.

Makale detayları

Characterization and suitability assessment of soils in rain forest zone southwest Nigeria for cassava, maize and rice production using parametric method

Yazarlar:

Fawole Ayofe

Yayıncı:

Harran University

Ana Başlıklar:

Toprak Etüd ve Haritalama | Toprak Bilimi ve Ekolojisi

Dergi:

Harran Tarım ve Gıda Bilimleri Dergisi Vol.27 Issue 4, pp.624-642

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001306192

pISSN:

2587-1358

Arable crops

Granite gneiss

isohyperthermic and Paleustult.

Taxonomic classification

Soil suitabilityOrta taneli granit gnays

Taksonomik sınıflandırma

Tipik İzohipertermik Paleustults

Plintik İzohipertermik Paleustults ve Aquic Psamments

Sayı

Makale detayları

Yazarlar: Fawole Ayofe

Yayıncı: Harran University

Ana Başlıklar: Toprak Etüd ve Haritalama | Toprak Bilimi ve Ekolojisi

Dergi: Harran Tarım ve Gıda Bilimleri Dergisi Vol.27 Issue 4, pp.624-642

Belge Tipi: Makale

Yayın Tarihi: 12/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001306192

pISSN: 2587-1358

Sayı

Yazarlar:

Fawole Ayofe

Yayıncı:

Harran University

Ana Başlıklar:

Toprak Etüd ve Haritalama | Toprak Bilimi ve Ekolojisi

Dergi:

Harran Tarım ve Gıda Bilimleri Dergisi Vol.27 Issue 4, pp.624-642

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001306192

pISSN:

2587-1358