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Fertiliser other plant foods

The main constituents for compound fertihsers used in the United Kingdom are urea, mono and diammonium phosphate and potassium chloride. These compound fertilisers, or compounds, supply two or three of the major plant foods (nitrogen, phosphoms and potassium). Other plant foods, e.g. trace elements, as well as pesticides, can also be added, although this is not commonly done now. The exception to this is sulphur which is increasingly being offered as part of compound fertilisers to overcome the deficiencies in certain parts of the country. [Pg.77]

Sodium is not an essential plant food for the majority of crops. However, for some, notably sugar beet and similar crops, it is highly beneficial and should replace at least half the potash requirements. The adverse effects it has on weak structured soils such as the Lincolnshire silts should be noted but, on other soils, this should not be a problem. Agricultural salt (sodium chloride, 37% Na) is the main sodium fertiliser used. It is now available in a granular form. [Pg.77]

Farmers harvest crops to provide the world with food. Each year millions of tonnes of fertilisers are spread onto fields to replace the nitrogen and other plant nutrients lost from the soil. About 85% of the millions of tonnes of ammonia produced each year in the Haber process are used to make fertilisers. A relatively small amount of ammonia itself is used as fertiliser, mainly in the USA. This is injected into the soil. However, the vast majority of ammonia is reacted with acids to make solid ammonium salts. [Pg.193]


See other pages where Fertiliser other plant foods is mentioned: [Pg.358]    [Pg.28]    [Pg.350]    [Pg.82]    [Pg.1]    [Pg.4]    [Pg.142]    [Pg.3]    [Pg.3]    [Pg.30]    [Pg.172]    [Pg.414]    [Pg.795]   
See also in sourсe #XX -- [ Pg.377 ]




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