Drainage

Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess of water. The internal drainage of most agricultural soils is good enough to prevent severe waterlogging (anaerobic conditions that harm root growth), but many soils need artificial drainage to improve production or to manage water supplies.

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Publications

The National Archives · 1 January 1982 English

A file of correspondence and reports concerning political relations between Albania and the United Kingdom. The documents cover discussions on the possible resumption of relations between the British and Albanian …

techniques with some degree of mechanisation, land drainage and irriga- tion, the drive for increased production couplcd with a sound long-term policy of land drainage and irrigation, Albania should be aole to supply 47,966 2,679 38,635 89,280 Irrigation and drainage equipment 47,952 11,600 * 676,792 736,3^4


The National Archives · 1 January 1982 English

a t i 0 n o n o v e r 6 0 0> 0 0 0 ^ctares and drainage facilities on 900, 000 hectares as well as erosion the total irrigated area to 2,318,000 hectares, drainage projects were completed on 77,200 hectares and


The National Archives · 1 January 1982 English

minimal and relies on local materials. Little field drainage appears to have been done and it must be noted fruit trees, for improved fencing and land drainage; - 14 - - Upgrading of farm water supply (e hand-pumps and distribution piping) and farmyard drainage; - Establishment of a small machinery pool, preferably


The National Archives · 1 January 1981 English

there =?re artificial values created (market drainage in the case of alcohol), which distort the national


The National Archives · 1 January 1981 French

A file containing documents relating to the movement of people between East Berlin and West Berlin. Subjects covered in the file include problems experienced with the use of new-style passports …

(?unforeseen) expenditure of DM 2 5m on a 1 drainage installation. I 3. As regards the environmentalists'


The National Archives · 1 January 1981 English

A file of correspondence and reports concerning commercial relations between Czechoslovakia and the United Kingdom. The documents cover the interests of British firms in bidding for industrial contracts in Czechoslovakia; …

interest of a British company (Bruff) in selling drainage equipment suitable for use on steep hillsides


The National Archives · 1 January 1981 English

construction of storage faci_ities, implementation I of drainage/irrigation schemes ana tne use of fertilisers


The National Archives · 1 January 1981 English

A file of correspondence and reports concerning the Soviet economy. The documents cover a meeting of the Supreme Soviet on economic affairs concerning the five-year plan for 1981–1985; the economic …

infrastructure (fertiliser, silos, irrigation, drainage - up -roughly 40$ on the previous FYP). International


The National Archives · 1 January 1981 English

the - perimeter of these plots electric power, drainage, water supply and other communications which


The National Archives · 1 January 1980 German

A file containing conference papers prepared for the scientific forum held in Hamburg as a follow-up to the Conference on Security and Cooperation in Europe. The papers concern topics such …

achieved by sophisticated management practices (e.g. drainage, fertilizer and herbicide use, etc.) which would


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