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Crop production under salt affected black soils

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Title Crop production under salt affected black soils
Not Available
 
Creator R. L. Meena
K. Lal
Gajender Yadav
 
Subject saline vertisols, black soils, crop production, management
 
Description Not Available
In the course of the present century, the world population has increased from less than two thousand
million to over five and a half thousand million. Until one hundred years ago, the expanding population’s
increasing needs for food, fuel, fibre and construction materials were met from the land by cultivating
progressively larger areas. The much greater increase in population during this century has been supported
mainly by intensifying the use of much of the land that is already cultivated. In the next 25 years a further 2000
million people will be added to the global population. Most of these people will live in the tropics. As a result ,
the demands which will be placed on the soil and water resources of the tropics will far exceed those of the
past.
According to the FAO Land and Plant Nutrition Management Service, over 6% of the world's land is
affected by either salinity or sodicity (Table 1). The term salt-affected refers to soils that are saline or sodic,
and these cover over 400 million hectares, which is over 6% of the world land area (Table 1) . Much of the
world’s land is not cultivated, but a significant proportion of cultivated land is salt-affected. Of the current 230
million ha of irrigated land, 45 million ha are salt-affected (19.5 percent) and of the 1,500 million ha under
dryland agriculture, 32 million are salt-affected to varying degrees (2.1 percent).
Not Available
 
Date 2019-11-24T15:17:07Z
2019-11-24T15:17:07Z
2008-01-01
 
Type Book chapter
 
Identifier R. L. Meena, K. Lal and Gajender Yadav (2008). Crop production under salt affected black soils. In: Diagnosis and Management of Poor Quality Water and Salt Affected Soils. (Khajanchi LalR. L. Meena, S.K. Gupta, C. K. Saxena, Gajender Yadav and Gurbachan Singh, Eds) CSSRI, Karnal. pp 68-72.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/25120
 
Language English
 
Relation Not Available;
 
Publisher Central Soil Salinity Research Institute, Karnal