scholarly journals Characterization, classification and evaluation of major soils in Sollapura sub-watershed of Chikmagalur district in Karnataka for sustainable crop production

2019 ◽  
Author(s):  
S. Venkatesan ◽  
K. Dhanasekararan
Keyword(s):  
Crop Production ◽  
Exchange Capacity ◽  
Sustainable Land Use ◽  
Moisture Regime ◽  
Soil Moisture Regime ◽  
Physico Chemical ◽  
Soil Constraints ◽  
Wide Range ◽  
Land Use Plan ◽  
Semi Arid

The morphological, physical and physico-chemical characteristics of soils in Sollapura sub-watershed of Chikmagalur district in Karnataka have been studied. The district comprises of 7 taluks of which Tarikere comes under southern transition zone. Tarikere talu have wide range of climate variation from perhumid to semi-arid. The study revealed that the soils had colours in the hue of 10YR to 5 YR, well to poorly drained, slightly acidic to moderately alkaline, low to high in organic carbon and low to medium in cation exchange capacity with wide textural variations. The soils on gently sloping topography exhibit the development of argillic horizon (Bt). The soils have been classified as Alfisols soil order and Ustalfs at sub-order level due to the presence of ustic soil moisture regime. On the basis of the major soil constraints, sustainable land use plan for the micro-watershed has also been suggested for their better management.

Degradation of savanna soils and reduction of water available for the vegetation: the case of northern Cameroon Vertisols

1992 ◽  
Vol 72 (4) ◽  
pp. 481-488 ◽  
Author(s):  
L. Seiny-Boukar ◽  
C. Floret ◽  
R. Pontanier
Keyword(s):  
Annual Rainfall ◽  
Moisture Regime ◽  
Wetting Front ◽  
Degraded Soil ◽  
Soil Moisture Regime ◽  
Physico Chemical ◽  
Northern Cameroon ◽  
Dynamic Relationships ◽  
Savanna Soils ◽  
Fire Wood

The purpose of this study was to characterize and quantify the degradation of Vertisols of savannas in Northern Cameroon. The work was carried out in a region with mean annual rainfall of 800 mm. It is a climate with 9 months theoretical drought and one raining season. The area is heavily populated and farmers use fallow to rejuvenate the soil. The post-cultural savannas (fallows) are subjected to fire, intensive grazing and cutting of fire wood. Three soil types at different stages of degradation were subjected to a study of their soil moisture regime including quantification of runoff during a three-year period. Physico-chemical characteristics are discussed, as well as variations in water reserves as a function of stages of degradation. Maximum wetting front varied from 30 to 80 cm. The most degraded soil lacked plant available moisture for 10 months as compared to 5 months for the least degraded. A model is presented of the dynamic relationships that may exist among the stages of degradation of these Vertisols. Key words: Savanna, Vertisol, water regime, degradation, soil dynamics

RELIEF AND MICROCLIMATE AS RELATED TO SOIL PROPERTIES

1978 ◽  
Vol 58 (3) ◽  
pp. 421-438 ◽  
Author(s):  
T. M. MACYK ◽  
J. D. LINDSAY ◽  
S. PAWLUK
Keyword(s):  
Redox Potential ◽  
Soil Temperature ◽  
Soil Properties ◽  
Exchange Capacity ◽  
Moisture Regime ◽  
X Ray Diffraction ◽  
The South ◽  
The North ◽  
Soil Moisture Regime ◽  
Soil Temperatures

This study was undertaken to determine the influence of relief and microclimate on soil properties. Seven sites were chosen at different positions on the north- and south-facing slopes of a moderately rolling till knob. Physical, chemical and mineralogical analyses were conducted to characterize the soils at each of the sites. The vegetation of the area was described and soil temperatures and moisture were monitored at four depths. Redox potential and pH were measured to detect seasonal variations. Data for oxalate and dithionite-extractable iron and aluminum, cation exchange capacity, and X-ray diffraction showed only minor differences among the seven pedons along the slope faces. Soil temperature was higher on the south-facing slope than on the north-facing slope and air temperature was usually higher than soil temperature at the 10-cm depth. Soil moisture regime varied with position in the landscape. The soil on the north-facing slope was generally more moist than the soil on the south-facing slope. Redox potential varied seasonally and appeared to be related to the moisture content of the soil.

scholarly journals Land-site suitability evaluation for tea, cardamom and rubber using Geo-spatial technology in Wayanad district, Kerala

2017 ◽  
Vol 9 (3) ◽  
pp. 1440-1447 ◽  
Author(s):  
N. S. Gahlod ◽  
Sonam Binjola ◽  
Ravi Ravi ◽  
V. S. Arya
Keyword(s):  
Land Evaluation ◽  
Moisture Regime ◽  
Land Utilization ◽  
Site Suitability ◽  
Land Site ◽  
Soil Moisture Regime ◽  
Physico Chemical ◽  
Soil Site ◽  
Chemical Attributes ◽  
Plantation Crops

Kerala is one of the important states contributing to the production of plantation crops and spices in the country. Soil and Land evaluation in various land utilization types has been carried out to assess the land suitability for tea, cardamom and rubber in Wayanad district of Kerala. Different soil physico-chemical parameters like, pH, electrical conductivity, organic carbon and physical attributes database of soil mapping units developed in inventorying of soil resources at 1:50K scale using LISS-III satellite data on soil series and its association used to evaluate soil site suitability for tea, cardamom and rubber. The results indicated that for tea around 55.79% area is suitable for cultivation of which 14.62 %, 25.51 % and 15.66 % found highly suitable (S1), moderately suitable (S2) and marginally suitable (S3), respectively. About 26.92 % and 12.10 % found moderately suitable (S2) and marginally suitable (S3) for cardamom and about 32.48 % area marginally suitable (S3) for rubber. The area unsuitable for cultivation (N) of tea, cardamom and rubber were found to be 11.69 %, 28.46 % and 34.99 %, respectively, due to constraints like relief, topography, soil physico-chemical attributes such as base saturation, pH and soil moisture regime etc. The study proposed an integrated methodology for mapping and assessing suitability of land using remote sensing and GIS techniques.

scholarly journals Soil Characterization and Classification in an Upland of Southern Guinea Savannah Zone of Nigeria

2021 ◽  
Author(s):  
T.S. Babalola ◽  
K.S. Ogunleye ◽  
O.J. Omoju ◽  
U.C. Osakwe ◽  
A.O.A. Ilori
Keyword(s):  
Soil Formation ◽  
Soil Nutrient ◽  
High Elevation ◽  
Exchange Capacity ◽  
Sustainable Land Use ◽  
Morphological Properties ◽  
Soil Characterization ◽  
Nutrient Reserve ◽  
Physico Chemical ◽  
Land Use And Management

Background: Soil characterization and classification is the foundation for sustainable land use and management. Upland soils are important in areas of high elevation and undulating terrain. This study characterized and classified Soils of an upland in southern guinea savannah of Nigeria.Methods: The prominent elevation points of the area were read with GPS device and four locations identified were labelled: UP1, UP2, UP3 and UP4. Profile pits were dug in each location, described for the morphological properties and sampled for laboratory analysis of soil physico-chemical properties.Result: The soils were slightly to strongly acidic with pH of 5.29 to 6.11, had low organic matter ranged of 1.52 to 1.79% and low soil nutrient reserve with the effective cation exchange capacity (CEC) of 5.9 to 9.26 mol kg-1. In-situ soil development, transportation and deposition of materials were the major soil formation processes in the area. The soils were classified as Alfisols and were marginally suitable (S3) for yam.

Soil Moisture Regime Changes in Tephra-Mulched Soils

2002 ◽  
Vol 66 (1) ◽  
pp. 202 ◽  
Author(s):  
M. Tejedor ◽  
C. C. Jiménez ◽  
F. Díaz
Keyword(s):  
Soil Moisture ◽  
Moisture Regime ◽  
Regime Changes ◽  
Soil Moisture Regime

scholarly journals Silicon Effects on the Root System of Diverse Crop Species Using Root Phenotyping Technology

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 885
Author(s):  
Pooja Tripathi ◽  
Sangita Subedi ◽  
Abdul Latif Khan ◽  
Yong-Suk Chung ◽  
Yoonha Kim
Keyword(s):  
Root System ◽  
Root Morphology ◽  
Morphological Traits ◽  
Crop Production ◽  
Spatial Configuration ◽  
Global Climate ◽  
Learning Technologies ◽  
Climate Change Scenarios ◽  
Crop Species ◽  
Wide Range

Roots play an essential function in the plant life cycle, as they utilize water and essential nutrients to promote growth and plant productivity. In particular, root morphology characteristics (such as length, diameter, hairs, and lateral growth) and the architecture of the root system (spatial configuration in soil, shape, and structure) are the key elements that ensure growth and a fine-tuned response to stressful conditions. Silicon (Si) is a ubiquitous element in soil, and it can affect a wide range of physiological processes occurring in the rhizosphere of various crop species. Studies have shown that Si significantly and positively enhances root morphological traits, including root length in rice, soybean, barley, sorghum, mustard, alfalfa, ginseng, and wheat. The analysis of these morphological traits using conventional methods is particularly challenging. Currently, image analysis methods based on advanced machine learning technologies allowed researchers to screen numerous samples at the same time considering multiple features, and to investigate root functions after the application of Si. These methods include root scanning, endoscopy, two-dimensional, and three-dimensional imaging, which can measure Si uptake, translocation and root morphological traits. Small variations in root morphology and architecture can reveal different positive impacts of Si on the root system of crops, with or without exposure to stressful environmental conditions. This review comprehensively illustrates the influences of Si on root morphology and root architecture in various crop species. Furthermore, it includes recommendations in regard to advanced methods and strategies to be employed to maintain sustainable plant growth rates and crop production in the currently predicted global climate change scenarios.

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