Nutrient uptake by barley in six colombian soils

In Colombia, the increase of barley production is restricted by such factors as irregular rainfall, low temperatures, soil acidity, low fertility and disease, associated with improper soil management and scarse improve germoplasm, A suitable use of fertilizers is an alternative to face part of the p...

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Autores:: Madero Morales, Edgar Enrique
Amézquita Collazos, Edgar

Tipo de recurso:: Article of journal

Fecha de publicación:: 1993

Institución:: Universidad Nacional de Colombia

Repositorio:: Universidad Nacional de Colombia

Idioma:: spa

Description
Summary:	In Colombia, the increase of barley production is restricted by such factors as irregular rainfall, low temperatures, soil acidity, low fertility and disease, associated with improper soil management and scarse improve germoplasm, A suitable use of fertilizers is an alternative to face part of the problem by means of plant breeding in different terrain, tend to develop of low soil productivity tolerant cultivars. To arrive at appropiate recommendations for farmers, it was consider the quantity of removal nutrients at physiological maturity. The 124 commercial barley preferred moderately fertil soils but with a lower nutritional efficiency after a commercial cultivar wheat. Its nutritional requirements to reach a 2.5 t/ha yield without irrigation was: Macronutrientes (kg/ha): 30 N, 8 P, 24 K, 8 Ca, 2.5 Mg; Micronutrients (g/ha): 140 Mn, 40 Zn, 24 Cu, 340 Fe. For many new barley cultivars sowed over ondulating terrains, the highest nutritional efficiency was in a Vertic Tropudalf, moderately behavoir in the Paralithic Humitropept and the lowest in an Ustic Dystropept. There were two cultivars with low adaptation, only one grow well in a difficult terrain and three cultivars exhibit good adaptation in all studied terrains.

Nutrient uptake by barley in six colombian soils

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