Studies on some deep sandy soils in Cape York Peninsula, North Queensland. 1. Morphological and chemical characteristics

1973 ◽  
Vol 13 (60) ◽  
pp. 81 ◽  
Author(s):  
RF Isbell ◽  
GP Gillman
Keyword(s):  
Chemical Properties ◽  
Sandy Soils ◽  
Nutrient Status ◽  
Exchangeable Cations ◽  
Soil Sampling ◽  
Granitic Rocks ◽  
Chemical Characteristics ◽  
Plant Nutrient ◽  
Copper Zinc ◽  
Cape York

Deep sandy soils overlying granitic rocks are widespread in Cape York Peninsula. Rainfall is summer dominant and the annual mean is 1140 mm. Evidence is presented that some of the soils are weakly podzolised and some soil properties are influenced by an underlying clay horizon at depth. The method of soil sampling adopted permits a statistical estimate of the variability of soil chemical properties. Most data for the surface soils of this group have a sufficiently low variability both within and between sites to allow an assessment of plant nutrient status derived from associated experiments in field and glasshouse to be generally applicable throughout the region. All soils are very low in organic carbon, nitrogen, potassium, sulphur, phosphorus, copper, zinc, and exchangeable cations.

Plant nutrition studies on some yellow and red earth soils in northern Cape York Peninsula. 1. Soils and their nutrient status

1976 ◽  
Vol 16 (81) ◽  
pp. 532 ◽  
Author(s):  
RF Isbell ◽  
RK Jones ◽  
GP Gillman
Keyword(s):  
Chemical Properties ◽  
Acid Soils ◽  
Nutrient Status ◽  
Stylosanthes Humilis ◽  
Northern Cape ◽  
Copper Zinc ◽  
Red Earth ◽  
Cape York ◽  
Nitrogen Phosphorus ◽  
Basic Cations

Eleven complete profiles and an additional 112 surface soils of deep sandy yellow and red earths in the far northern part of Cape York Peninsula have been sampled for laboratory studies. Chemical analyses showed that these acid soils are very low in organic carbon, nitrogen, phosphorus, potassium, sulphur, copper, zinc, manganese, cobalt, exchangeable basic cations, and base saturation. They have relatively high contents of exchangeable aluminium. The variability of surface soil chemical properties is relatively low. Glasshouse experiments with Stylosanthes humilis cv. Gordon conducted on soils from the 11 profile sites showed responses to sulphur, potassium, zinc and lime on all soils and to copper on about half the sites. Considering the results of both the laboratory and glasshouse studies, it is suggested that responses to nitrogen, phosphorus, zinc and probably calcium and copper are likely in the field. Responses to sulphur may be transitory because of the presence of appreciable levels of phosphate-extractable sulphur at depth.

Soil Chemical Properties and Plant Nutrient Status as Influenced by Application of Lime, Phosphorus and Compost

2017 ◽  
Vol 20 (2) ◽  
pp. 1-11
Author(s):  
Dereje Shanka ◽  
Nigussie Dechassa ◽  
Eyasu Elias ◽  
Setegn Gebeyehu
Keyword(s):  
Chemical Properties ◽  
Nutrient Status ◽  
Soil Chemical Properties ◽  
Plant Nutrient

MORPHOLOGICAL AND CHEMICAL CHARACTERISTICS OF THE SOLONETZIC SOILS OF NORTHWESTERN ALBERTA

1964 ◽  
Vol 44 (1) ◽  
pp. 22-33 ◽  
Author(s):  
S. W. Reeder ◽  
Wm. Odynsky
Keyword(s):  
Organic Carbon ◽  
Chemical Properties ◽  
Morphological Characteristics ◽  
Exchange Capacity ◽  
Exchangeable Cations ◽  
Chemical Characteristics ◽  
Total Calcium ◽  
Soluble Salts ◽  
Calcium Magnesium

The morphological characteristics and average chemical properties for 69 Solonetzic soils of northwestern Alberta are presented. The chemical data include conductivity and soluble salts, exchangeable cations and exchange capacity, pH, organic carbon, and total calcium, magnesium, and sodium. The results showed that the soils classified as Solonetz and Solodized Solonetz possessed properties in agreement with the limits proposed for soils of the Solonetzic Order, whereas the soils classified as Solods had chemical properties that placed them in a borderline position with the soils of this Order. It is proposed that consideration be given to the classification of a group of soils developed on saline materials that have a characteristic morphology and possess chemical properties that do not quite meet the limits required for soils of the Solonetzic Order.

KARAKTERISTIK TANAH DAN PERBANDINGAN PRODUKSI KELAPA SAWIT (Elaeis guineensis Jacq.) DENGAN METODE TANAM LUBANG BESAR DAN PARIT DRAINASE 2:1 PADA LAHAN SPODOSOL DI KABUPATEN BARITO TIMUR PROPINSI KALIMANTAN TENGAH - INDONESIA

2015 ◽  
Vol 2 (2) ◽  
pp. 148-158
Author(s):  
Surianto
Keyword(s):  
Soil Texture ◽  
Oil Palm ◽  
Soil Profile ◽  
Chemical Properties ◽  
Exchangeable Cations ◽  
Soil Horizon ◽  
Soil Profiles ◽  
Negative Effect ◽  
Hole Profile ◽  
And Chemical Properties

Spodosol soil of Typic Placorthod sub-group of East Barito District is one of the problem soils with the presence of hardpan layer, low fertility, low water holding capacity, acid reaction and it is not suitable for oil palm cultivation without any properly specific management of land preparation and implemented best agronomic practices. A study was carried out to evaluate the soil characteristic of a big hole (A profile) and no big hole (B profile) system and comparative oil palm productivity among two planting systems. This study was conducted in Spodosol soil at oil palm plantation (coordinate X = 0281843 and Y = 9764116), East Barito District, Central Kalimantan Province on February 2014, by surveying of placic and ortstein depth and observing soil texture and chemical properties of 2 (two) oil palm's soil profiles that have been planted in five years. Big hole system of commercial oil palm field planting on the Spodosol soil area was designed for the specific purpose of minimizing the potential of a negative effect of shallow effective planting depth for oil palms growing due to the hardpan layer (placic and ortstein) presence as deep as 0.25 - 0.50 m. The big hole system is a planting hole type which was vertical-sided with 2.00 m x 1.50 m on top and bottom side and 3.00 m depth meanwhile the 2:1 drain was vertical-sided also with 1.50 m depth and 300 m length. Oil palm production was recorded from the year 2012 up to 2014. Results indicated that the fractions both big hole profile (A profile) and no big hole profile (B profile) were dominated by sands ranged from 60% to 92% and the highest sands content of non-big hole soil profile were found in A and E horizons (92%). Better distribution of sand and clay fractions content in between layers of big hole soil profiles of A profile sample is more uniform compared to the B profile sample. The mechanical holing and material mixing of soil materials of A soil profile among the upper and lower horizons i.e. A, E, B and C horizons before planting that resulted a better distribution of both soil texture (sands and clay) and chemical properties such as acidity value (pH), C-organic, N, C/N ratio, CEC, P-available and Exchangeable Bases. Investigation showed that exchangeable cations (Ca, Mg, K), were very low in soil layers (A profile) and horizons (B profile) investigated. The low exchangeable cations due to highly leached of bases to the lower layers and horizons. Besides, the palm which was planted on the big hole system showed good adaptation and response positively by growing well of tertiary and quaternary roots that the roots were penetrable into deeper rooting zone as much as >1.00 m depth. The roots can grow well and penetrate much deeper in A profile compared to the undisturbed hardpan layer (B profile). The FFB (fresh fruit bunches) production of the non-big hole block was higher than the big hole block for the first three years of production. This might be due to the high variation of monthly rainfall in-between years of observation from 2009 to 2014. Therefore, the hardness of placic and ortstein as unpenetrable agents by roots and water to prevent water loss and retain the water in the rhizosphere especially in the drier weather. In the high rainfall condition, the 2:1 drain to prevent water saturation in the oil palm rhizosphere by moving some water into the drain. Meanwhile, the disturbed soil horizon (big hole area) was drier than un disturbance immediately due to water removal to deeper layers. We concluded that both big hole and 2:1 drain are a suitable technology for Spodosol soil land especially in preparing palms planting to minimize the negative effect of the hardpan layer for oil palm growth.

Contributions to the Knowledge of Sandy Soils from Oltenia Plain

2020 ◽  
Vol 71 (1) ◽  
pp. 192-200
Author(s):  
Anca-Luiza Stanila ◽  
Catalin Cristian Simota ◽  
Mihail Dumitru
Keyword(s):  
Chemical Properties ◽  
Soil Formation ◽  
Sandy Soils ◽  
Physical Geography ◽  
Parent Material ◽  
Negative Effects ◽  
Small Water ◽  
Wind Characteristic ◽  
The One ◽  
Physical And Chemical

Highlighting the sandy soil of Oltenia Plain calls for a better knowledge of their variability their correlation with major natural factors from each physical geography. Pedogenetic processes specific sandy soils are strongly influenced by nature parent material. This leads, on the one hand, climate aridity of the soil due to strong heating and accumulation of small water reserves, consequences emphasizing the moisture deficit in the development of the vegetation and favoring weak deflation, and on the other hand, an increase in mineralization organic matter. Relief under wind characteristic sandy land, soil formation and distribution has some particularly of flat land with the land formed on the loess. The dune ridges are less evolved soils, profile underdeveloped and poorly supplied with nutrients compared to those on the slopes of the dunes and the interdune, whose physical and chemical properties are more favorable to plant growth.Both Romanati Plain and the Blahnita (Mehedinti) Plain and Bailesti Plain, sand wind shaped covering a finer material, loamy sand and even loess (containing up to 26% clay), also rippled with negative effects in terms of overall drainage. Depending on the pedogenetic physical and geographical factors that have contributed to soil cover, in the researched were identified following classes of soils: protisols, cernisols, cambisols, luvisols, hidrisols and antrosols.Obtaining appropriate agricultural production requires some land improvement works (especially fitting for irrigation) and agropedoameliorative works. Particular attention should be paid to preventing and combating wind erosion.

scholarly journals Effect of Mosses on physical and chemical properties of soil in temperate forests of Garhwal Himalayas

2021 ◽  
pp. 1-10
Author(s):  
Anshu Siwach ◽  
Siddhartha Kaushal ◽  
Ratul Baishya
Keyword(s):  
Physical Properties ◽  
Chemical Properties ◽  
Nutrient Status ◽  
High Rate ◽  
Physical And Chemical Properties ◽  
Garhwal Himalayas ◽  
Forest Sites ◽  
Significant Difference ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract Mosses are one of the most important and dominant plant communities, especially in the temperate biome, and play a significant role in ecosystem function and dynamics. They influence the water, energy and element cycle due to their unique ecology and physiology. The present study was undertaken in three different temperate forest sites in the Garhwal Himalayas, viz., Triyuginarayan (Kedarnath Wildlife Sanctuary (KWLS)), Chakrata, and Kanasar forest range. The study was focused on understanding the influence of mosses on soil physical properties and nutrient availability. Different physico-chemical properties were analysed under two different substrata, that is, with and without moss cover in two different seasons, viz., monsoon and winter. We observed mosses to influence and alter the physical properties and nutrient status of soil in both seasons. All soil physical and chemical properties, except magnesium, showed significant difference within the substrates, among all the sites and across the two seasons. Besides the soil characteristics underneath the moss vegetation, the study also highlights the diversity of mosses found in the area. Mosses appear to create high nutrient microsites via a high rate of organic matter accumulation and retain nutrients for longer periods thus, maintaining ecosystem stability.

Combining sub-field scale soil sampling and GIS interpolation techniques for mapping nutrient hotspots 

2021 ◽  
Author(s):  
Emma Hayes ◽  
Suzanne Higgins ◽  
Donal Mullan ◽  
Josie Geris
Keyword(s):  
Water Quality ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Soil Sampling ◽  
Nutrient Losses ◽  
Field Scale ◽  
Soil Nutrient Status ◽  
Interpolation Techniques ◽  
Nutrient Hotspots ◽  
Field Variability

<p>The EU Water Framework Directive (WFD) aims to target prevalent poor water quality status. Of the various contributing sources agriculture is particularly important due to the high loading rates of sediment and nutrient losses associated with fertilisation, sowing, and cropping regimes. Understanding soil nutrient status and the potential pathways for nutrient loss either through point or diffuse sources is an important step to improve water quality from an agricultural perspective. Research has demonstrated extensive in-field variability in soil nutrient status. A sampling regime that explores this variability at a sub-field scale is necessary. Traditional soil sampling consists of taking 20-30 cores per field in a W-shaped formation to produce a single bulked core, however, it generally fails to locate nutrient hotspots at finer resolutions. Inappropriate generalised fertilisation and management recommendations can be made in which nutrient hotspots or deficient zones are overlooked. Gridded soil sampling can reveal the full degree of in-field variability in nutrient status to inform more precise and site-specific nutrient applications. High soil phosphorus levels and the concept of legacy nutrient accumulation due to long-term over-application of phosphorus fertiliser in addition to animal slurry is a problem across the island of Ireland.</p><p>This research aims to locate and quantify the presence of soil nutrient hotspots at several field-scale locations in the cross-border Blackwater catchment in Northern Ireland / Republic of Ireland. Based on 35 m sampling grids, the nutrient content at unsampled locations in each field was determined using GIS interpolation techniques. Particular attention was paid to phosphorus, given its role in eutrophication. Gridded soil sampling enables the identification of nutrient hotspots within fields and when combined with an analysis of their location in relation to in-field landscape characteristics and knowledge of current management regimes, the risk of nutrient or sediment loss potential may be defined. This research concluded that traditional W soil sampling of producing one average value per field is not appropriate to uncover the degree of spatial variability in nutrient status and is inappropriate for catchment management of agricultural systems for controlling nutrient losses. Soil sampling at multiple locations per field is deemed to be cost-prohibitive for many farmers. However, sub-field scale soil sampling and appropriate geostatistical interpolation techniques can reveal the degree of variability and suggest an appropriate resolution for field-scale nutrient management that may be necessary to achieve measurable improvements in water quality.</p>

TO THE QUESTION OF INDUSTRIAL AEROSOL CONTROL IN THE PROCESSING OF BLISTER COPPER

2021 ◽  
Author(s):  
O.G. Drugova ◽  
◽  
A.A. Fedoruk ◽  
T.N. Shtin
Keyword(s):  
Chemical Properties ◽  
The Body ◽  
Industrial Control ◽  
Silicon Iron ◽  
Carcinogenic Effect ◽  
Copper Zinc ◽  
Toxic Potential ◽  
Physical And Chemical ◽  
Industrial Aerosol ◽  
And Chemical Properties

Abstract. Due to the predominance of PM1 particles in the air samples, the following metals were found in the aerosol: copper, zinc, silicon, iron, lead, sulfur, arsenic, aluminum, antimony, tin, magnesium, cadmium and several other metals. The content of sulfates was significantly noted. These physical and chemical properties show a considerable toxic potential of industrial aerosol. The MPC of lead, sulfur and silicon dioxides, as well as nitrogen oxides and formaldehyde were detected in the working air. Meanwhile, copper, zinc, and iron did not exceed their MPC. Moreover, an underestimation of the aerosol was observed within the framework of industrial control. It has been found that the aerosol components may have an irritating, reprotoxic, allergenic, and carcinogenic effect on the body. Further consideration of the dispersed and chemical composition of the aerosol is required to determine the concentration of identified substances in the working air and the limiting components determining its biological effect.

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