Dosage of fertilizer helps to enhance qualit...(searcher Teresa Fuertes Mendizbal analys...)

Date:5/19/2008

searcher, Teresa Fuertes Mendizbal, analysed the behaviour of wheat with different uses of nitrogenated fertiliser, with the goal of establishing suitable guidelines for application optimum dosage, number of applications and so on. Ms. Fuertes is a graduate in Biological Sciences and has an advanced studies diploma in Environmental Agricultural Biology. She is currently contracted as a researcher at the Department of Plant and Ecological Biology of the Faculty of Science and Technology (UPV/EHU). Her PhD was led by Ms Mara Begoa Gonzlez Moro and Mr Jos Mara Estavillo and undertaken in collaboration with the Public University of Navarre and the NEIKER-Tecnalia Institute.

Seeking the correct dosage

One of the aims of the UPV/EHU research was to better understand the physiological response of the wheat crop to nitrogen. By means of a field study in the Basque province of Araba, carried out with a wide-ranging variety of flour wheat known as Soissons -, Dr Fuertes studied the physiological processes involved in the efficient use of nitrogen by the plant. According to her conclusions, applying an insufficient dosage of fertiliser will result in scant yields in terms of volume of production, while excessive dosage will cause environmental problems without achieving appreciable improvement in the quality of the grain. For Dr Fuertes, drawing up the procedures or protocols for the application of nitrogenated fertilisers should take into account the source of the nitrogen, the quantity to be applied and the distribution of the dosage, i.e. in how many stages should this amount be applied.

Less fertiliser, but better dosage

The PhD thesis of Ms Fuertes revealed that the optimum dosage enabling the maximum yield for wheat crop, in the climatic conditions extant in Araba, is about 155 kg of nitrogen per hectare. She also pointed out that dosages of 100 kg or less per hectare produce flours that are insufficient for bre
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Contact: Alaitz Ochoa de Eribe alaitzo@elhuyar.com 34-688-673-679 Elhuyar Fundazioa Source:Eurekalert

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