2 edition of Saline-alkali soils in India found in the catalog.
Saline-alkali soils in India
Radha Raman Agarwal
|Statement||[by] R. R. Agarwal and R. N. Gupta.|
|Series||I.C.A.R. Technical Bul., Agric. Series, no. 15|
|Contributions||Gupta, R. N., joint author.|
|LC Classifications||S279 .B245 no. 15, S599.6.I5 .B245 no. 15|
|The Physical Object|
|Pagination||iv, 221 p.|
|Number of Pages||221|
|LC Control Number||75398151|
India has varied relief features, landforms, climatic realms and vegetation types. These have contributed in the development of various types of soils in India. In ancient times, soils used to be classified into two main groups – Urvara and Usara, which were fertile and sterile, respectively. In the 16th centrury A.D., soils were classified onFile Size: KB. saline and alkali soils and their management Download saline and alkali soils and their management or read online books in PDF, EPUB, Tuebl, and Mobi Format. Click Download or Read Online button to get saline and alkali soils and their management book now. This site is like a library, Use search box in the widget to get ebook that you want.
Alkali soils. In an uncultivated alkali (sodic) patch, sandy loam, Aquic Natrustalf (Soil Survey Staff, ) at CSSRI farm, Gudha, Dt. Karnal in India, differential amounts of gypsum were added in large field plots and leached to obtain varying values of soil ESP from 4 to 89 with pHs ranging from to The physico-chemical properties of the soils sampled from the surface 0–15 Cited by: There are 6 Major Soil Groups found in Andhra Pradesh. These are: Red Soils (Alfisols) 65%. Black Soils (Vertisols) 25%. Alluvial Soils (Entisols & Vertisols) 5%. Coastal Sands (Entisols) 3%. Laterite and Lateritic Soils (Oxisols) 1%. Problem Soils (Alfisols & Inceptisols) 1%, including saline, saline-alkali and non-saline-alkali soils.
In the year , Soil survey of India, an institution was established by the Government of India to study soil and its characteristics. The major types of soils found in India are. Salty or saline soils can result from various sources of salt ions. When a soil contains excess of sodium salts and clay complex still contains exchangeable calcium, the soil is known as Saline soil. Saline soils are salty in nature with PH value of less than 7 in PH scale. This soil has a poor soil structure and a low infiltration capacity.
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Amelioration of saline-alkali and alkali soils with blue green algae: Biological reclamation of saline-alkali soils Paperback – Octo About 7 million hectares of land in India is affected with high salt content. Attempts are needed to bring back such areas under cultivation and also to check their further : Subhashini Vallabhaneni.
This bulletin reviews the effects of land reclamation by different methods on the yield of crops grown in India. Information is also given on wild Plants indicative of alkalinity and/or salinity, on crop rotations practised on such soils, and on crops, grasses and their varieties tolerant of varying degrees of alkalinity and by: 8.
To support researchers to publish their research Open Access, deals have been negotiated with various publishers. Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an article Open Access.
This first monograph series provides an overview of reclamation of salt-affected soils in India with particular reference to crop tolerance and fertility management coupled with a rather comprehensive treatment on the nature of formation and occurrence of salt-affected by: 1.
Saline-alkali soil is defined as a soil having a conductivity of the saturation extract greater than 4 dSm -1 ( Sm -1 or 4 mmhos cm -1) and an exchangeable sodium percentage (ESP) greater than The pH is variable and usually above depending on the relative amounts of.
sification as “saline-alkali” soils. Conventional soil-survey methods have led to varying estimates on the ex tent of occurrence of salt-affected soils in India. If the soluble sodium salts are not leached out due to the insufficiency of rain water, they remain in the soil. The soil thus contains Na-clay and excess soluble, salts in solution.
Such soils are known as saline-alkali soils. They are thus, developed as a result of the combined process of salinization and alkalization. The saline soil are the ‘SALT AFFECTED SOILS” generally found in Arid and Semi-Arid regions.
These soils are generally found in “low precipitation area” where precipitation and evaporation ratio is less than Weathering of parent rock also contribute to the soluble salts to soil. In India about 7 million hectare area produces less yield due to salinity problem.
Soils India: Classification and Characteristics – Hello friends Welcome to We are Sharing Indian Soils types and Features of those cotton soil in india upsc material pdf.
Soil definition – soil is an upper layer of Earth which has been derived from the rocks and organic matter through agencies of decay and disintegration. Saline - alkali soils These soils are clay loam to clayey in texture and grey to black in colour.
Soils contain to percent lime and pH ranges from to Date palm plantation tried at Bhojka near Jaisalmer has been very successful in sandy saline alkali soils EC, dS m-1, pH ). Improved date palm cultivars were planted at Author: Atul Chandra.
Bakt. Abt. (), [Division of Microbiology, Indian Agricultural Research Institute, New DelhiIndia] Short Communication Nitrogen Fixation by Azospirillum spp. in Certain Saline and Saline-Alkali Soils of India K.
TILAK and G. KRISHNA MURTI Summary Azospirillum survives in saline and saline-alkali soils and seed inoculation with the organism in Cited by: 4. Saline and alkali soils of the Indian Gangetic alluvium in Uttar Pradesh Article in European Journal of Soil Science 5(2) - July with 4 Reads How we measure 'reads'.
Extent of problematic soils in india and their distribution throughout India. Problematic soils include Saline soils, Alkaline soils and coastal area of the country. Saline soils distribution on India, Alkaline soil distribution in India and major l soil area in hectare AFO/IBPS SO Determination of the Properties of Saline and Alkali Soils This chapter discusses determinations that give in-formation on the chemical and physical properties of saline and alkali soils and thus serve as a basis for their diagnosis, treatment, and management.
The status of knowledge on this subject is such that it. SINGH: SALINE-ALKALI SOILS plants yielded better results in the prelimi-nary trials. Because of its adaptations to this type of soil percentage of mortality of the seedlings is very low.
In all, about 5 to 7 irrigations on the saline-alkali soils are re-quired for the entire growing season. Good performance is obtained if the soil is kept. Comprehensive reading of Saline soil from Arun Katayan Book of GA Soils of India & Land use pattern WWCCSoils 6, views.
Soil Nutrition - for Agricultural Field Officer (Hindi. SALINE SOILS AND THEIR MANAGEMENT. Characteristics Reclamation and management Crops in saline soils. In some parts of India for example, leaching is best accomplished during the summer months because this is the time when the water table is deepest and the soil is dry.
This is also the only time when large quantities of fresh. ADVERTISEMENTS: Saline soils represent a group of soils in which percentages of soluble salts, usually chlorides and sulphates of the alkali bases are very high.
The pH of saline soils are always high. In India saline soils occur in many provinces, as U.P., West Bengal, Punjab, Bihar, Orissa, Maharashtra Tamil Nadu, M.P., Andhra Pradesh, Gujarat, [ ]. Diagnostics, methods of evaluation, and geography of saline-alkali (soda) soils are discussed.
The saline-alkali soils include soils of different genetic types with the following chemical properties: the pH of the water suspensions equal to or higher than ; the total alkalinity exceeding meq/ g of soil and the sum of water-soluble calcium and magnesium; and the presence of soluble Cited by: Define saline-alkali soil?
Saline-alkali soil is defined as a soil having a conductivity of the saturation extract greater than 4dS/m (S/m or 4mmhos/cm)and an exchangeable sodium percentage (ESP) greater than The pH is variable and usually above depending on the relative amount of exchangeable sodium and solube soils.Although weathering of rocks and primary minerals is the chief source of all salts, salt-affected soils rarely form through accumulation of salts in situ.
The major factors responsible for the formation of two principal categories of salt-affected soils are discussed below: Saline soils i.