Crop production under salt affected black soils
KRISHI: Publication and Data Inventory Repository
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Title |
Crop production under salt affected black soils
Not Available |
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Creator |
R. L. Meena
K. Lal Gajender Yadav |
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Subject |
saline vertisols, black soils, crop production, management
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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 |
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Date |
2019-11-24T15:17:07Z
2019-11-24T15:17:07Z 2008-01-01 |
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Type |
Book chapter
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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 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Central Soil Salinity Research Institute, Karnal
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