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Potassium for crop production

Share | 2016-05-03 17:41:58 From:topfert Comment:0 Look:1947 [ L M S ]


Potassium (K) is an essential nutrient forplant growth. Because large amounts are absorbed from the root zone in theproduction of most agronomic crops, it is classified as a macronutrient.Minnesota soils can supply some K for crop production, but when the supply fromthe soil is not adequate, K must be supplied in a fertilizer program. Thispublication provides information important to the basic understanding of Knutrition of plants, its reaction in soils, its function in plants, and itsrole in efficient crop production.

Role in plant growth


The exact function of K in plant growth has not been clearly defined. Potassium is associated with movement of water, nutrients, and carbohydrates in plant tissue. If K is deficient or not supplied in adequate amounts, growth is stunted and yields are reduced. Various research efforts have shown that potassium

?  stimulates early growth,

?  increases protein production,

?  improves the efficiency of water use,

?  is vital for stand persistence, longevity,and winter hardiness of alfalfa, and

?  improves resistance to diseases andinsects.

These roles or functions are general; but all are important to profitable crop production.



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