Influence of different nitrogen fertilizers on yield and quality of buckwheat | Dažādu slāpekļa minerālmēslu veidu ietekme uz griķu ražu un kvalitāti
2009
Vilcans, M., Latvian Plant Protection Research Centre, Riga (Latvia) | Pogulis, A., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture. Inst. of Soil and Plant Sciences
In 2007 and 2008, field trials were established in the farm “Arāji” where five types of nitrogen fertilizers were used: ammonium nitrate, calcium–ammonium nitrate, urea, potassium nitrate and ammonium sulphate. More important yield increase was obtained using urea, when buckwheat seed yield reached 1.83 t haE-1 but straw – 3.87 t haE-1. Application of ammonium nitrate and urea had negative influence on lodging resistance; losses of seeds at the harvesting also increased. All kinds of nitrogen fertilizers showed positive impact on protein content in buckwheat seeds, but especially – urea and calcium–ammonium nitrate. The seedling vigour and the seedling's root growth decreased when urea was used.
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