Booker Tropical Soil Manual

Landon, J.R.

doi:10.4324/9781315846842

Cited by 352 publications

(220 citation statements)

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“…The concentrations of available Mg, K and P in this study were considered low. The available Mg was considered high when it reaches 54.0 g/g [16]. Previous study in Chini [15] revealed that the concentration of available Mg at three forest types in Chini watershed were higher (54.0 g/g) compared to our study (TABLE (6)).…”

Section: Chemical Characteristicscontrasting

confidence: 44%

“…The percentage of organic matter at Chini watershed area based on forest types (inland 9.30%, seasonal flood 7.83% and riparian forests 8.48%) were reported [15] higher compared to our study. The value of organic matter is considered intermediate [16] when it ranges from 4-10%. From the drying process, the water molecule in the soil experienced changes in molecular bonding [17].…”

Section: Physical Characteristicsmentioning

confidence: 99%

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Temporal variation of vegetation litterfall and oil characteristics at Tasik Chini Biosphere Reserve, Pahang

Nurhanim

Juliana²

2013

AIP Conference Proceedings

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Abstract. This study was carried out to determine temporal variation of vegetation litterfall and soil nutrients at Tasik Chini Biosphere Reserve (TCBR), Pahang. A total of 1.5 ha sampling area consisting of 30 permanent sampling plots (20 x 25 m) was selected in the three TCBR management zones i.e the core, buffer and transition zones. Each zone consisted of 10 permanent sampling plots. Litter traps were installed in the 30 permanent sampling plots and the litters were collected started in December 2012. Soil samples from each sampling plot were obtained in December 2012 to represent the wet season and the soils were analysed. This paper reports our initial findings for the first five months of the litterfall data. Mean annual litterfall of the study site was estimated at 7,670.58 1.32 kg ha -1 y -1. The proportion of leaf litter component (82.16%) was the highest compared to other components. The litterfall varied monthly, whereby April 2013 had the highest value at 10.37 kg and the highest mean monthly litterfall at 0.35 0.2 kg. Core zone had the highest litterfall at 0.37 0.03 kg in April 2013, whilst buffer zone recorded 0.07 0.01 kg in January 2013 that was the lowest value of litterfall production. However, analysis of variance (ANOVA) showed there was no significant difference amongst the mean monthly dry weight (kg) of litterfall between the three zones (p=0.05) at TCBR from December 2012 to April 2013. Physical characteristics of the soil revealed that the core zone had sandy clay texture while the buffer and transition zones were clay loam texture. The percentage of organic matter and air dry moisture were the highest at core zone. For the soil chemical characteristics, soil pH of the three study sites were very acidic. Exchangeable cations and cation exchange capacity (CEC) were low whilst the electrical capacity (EC) was between 2.16 0.09 until 2.24 0.07 mS/cm for all three management zones. However, ANOVA also showed there were no significant differences in pH, exchangeable cations, CEC and EC between three management zones (p=0.05) in TCBR.

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Section: Chemical Characteristicscontrasting

confidence: 44%

Section: Physical Characteristicsmentioning

confidence: 99%

Temporal variation of vegetation litterfall and oil characteristics at Tasik Chini Biosphere Reserve, Pahang

Nurhanim

Juliana²

2013

AIP Conference Proceedings

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“…Soil fertility ratings of Esu (1991), Landon (1991) and NSPFS (2005) were used in interpreting the results obtained in this study.…”

Section: Resultsmentioning

confidence: 99%

Fertility Status of Selected Soils in the Sudan Savanna Biome of Northern Nigeria

Shehu¹,

Jibrin²,

Samndi³

2015

International J. of Soil Science

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Sustainable crop production in the Nigerian Sudan Savanna biome requires a good understanding of the fertility status of the soil in order to impose appropriate nutrient management strategies. Field surveys were conducted to assess the fertility status of selected soils from Shanono and Bunkure Local Government Areas (LGAs) of Kano State in the Northern Nigerian Sudan Savanna. All the surveyed fields had soil organic C, total N and ECEC within very low and low fertility classes. Very low and low available P was also found in the majority of fields with only 25.0 and 8.7% of the fields falling in the moderate P fertility range in Shanono and Bunkure LGA respectively. About 75.0% of fields in Shanono LGA and 39.1% in Bunkure LGA fell within the low exchangeable K class, with the rest of the fields having moderate level. Despite moderate to high content of exchangeable Ca and Mg in most of the fields, 4.3-8.7% of the fields had depleted status of the two basic cations. Micronutrients (Zn, Cu, Mn and Fe) levels in all the fields were in the moderate and high classes, except the subsurface soil of Shanono LGA where 4.2% of the fields had low Cu contents. Correlation analysis between northerly latitude and soil properties showed a northward increase in sand, pH and Zn levels and a decrease in silt and available Fe levels. The low status of Ca, Mg and Cu in some of the fields indicates the insufficiency of the current fertilizer recommendations which focus mainly on primary macronutrients (N, P and K). Therefore, apart from recommending all strategies that will enhance and stabilize organic matter, current fertilizer recommendations need to be reviewed and should contain other nutrients in addition to primary macronutrients.

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“…Nevertheless, Litsea tomentosa (22) and Litsea erectinervia (6) preferred clay texture while Litsea grandis (10) was influenced by sand. Meanwhile, Litsea artocarpifolia (2), Litsea maingayi (15) and Neolitsea villosa (35) favoured to nitrate nitrogen (NO3-N) while Litsea erectinervia (6) and Litsea tomentosa (22) were strongly influenced by potassium (K+). On the other hand, Litsea myristicaefolia (16) was strongly influenced by cation exchange capacity (CEC) and Litsea johorensis (12) was related to sodium (Na+).…”

Section: Resultsmentioning

confidence: 99%

“…Native element that exists in the soil would also give effects to plant growth. According to Othman and Shamsuddin [5] and Landon [6], the available nutrient elements that exist in the soil such as ammonium nitrogen (NH 4 -N) and nitrate nitrogen (NO 3 -N) are important to tree growth, production of protein and giving green colour in leaves. Likewise, there are also other elements important to plants such as magnesium (Mg) helping in chlorophyll formation process; potassium (K + ) launching exchange nutrient process to strengthen plant turgidity and phosphorus (P) for development of flowers and fruits.…”

Section: Introductionmentioning

confidence: 99%

Distribution of Litsea complex (lauraceae) and their association with soil properties in different forest types of Peninsular Malaysia

Khamis

Nizam²

2013

AIP Conference Proceedings

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Abstract.A study was conducted at 13 locations of different forest types in Peninsular Malaysia to examine the association between Litsea complex (Lauraceae) and its soil properties. A total of 37 species and 786 individuals were recorded. Soil samples in each study plot were taken and Canonical Correspondence Analysis (CCA) was employed to determine relationships between species of Litsea complex and the edaphic features. This study showed that Machinchang Forest Reserve, Kedah was strongly associated with sand texture while Taman Negara, Pahang was influenced by silt. In other study sites, Bukit Fraser, Pahang was highly influenced by magnesium (Mg); Taman Negara, Pahang was influenced by nitrate nitrogen (NO 3 -N); and Gunung Belumut, Johor was influenced by elements of sodium (Na + ) and ammonium nitrogen (NH 4 -N). The species distribution shows that Litsea artocarpifolia, Litsea maingayi and Neolitsea villosa were closely related to silt, while Litsea tomentosa and Litseae rectinervia were associated with clay, and Litsea grandis was related to sand. For tenden cyon soil chemical characteristic, Litsea artocarpifolia, Litsea maingayi and Neolitsea villosa were strongly related to nitrate nitrogen (NO 3 -N) while Litsea tomentosa and Litsea erectinervia were related to potassium (K + ). On the other hand, Litsea myristicaefolia was influenced by cation exchange capacity (CEC) and Litsea johorensis was influenced by sodium (Na + ). This study indicates that the species distribution of Litsea complex at the different forest types was associated with various soil properties.

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Booker Tropical Soil Manual

Cited by 352 publications

References 0 publications

Temporal variation of vegetation litterfall and oil characteristics at Tasik Chini Biosphere Reserve, Pahang

Temporal variation of vegetation litterfall and oil characteristics at Tasik Chini Biosphere Reserve, Pahang

Fertility Status of Selected Soils in the Sudan Savanna Biome of Northern Nigeria

Distribution of Litsea complex (lauraceae) and their association with soil properties in different forest types of Peninsular Malaysia

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