Scholarly record
UREA FERTILIZERS EFFICIENCY UPON QUALITY PARAMETERS OF WINTER CROPS
Abstract
Nowadays, wheat is the most important food source worldwide and rapeseed has become one of the alternative sources of energy, that is, biofuel. In the current global economic context, the practice of intensive farming, by applying large amounts of fertilizers is no longer sustained, mostly because of the negative environmental impact and also because of the high prices of fertilizers. It is imperatively necessary to practice an efficient management of nitrogen fertilizer, in order to avoid both environmental and economic negative consequences in the future years. The cereals, as wheat and oil crops, as rapeseed are characterized from the point of view of quality parameters by their content in protein and oil. These two important quality parameters are strongly related by the nitrogen fertilization level, soil type, but also by the climate conditions during the vegetation period. The three experimental fields are located in the Banat Plain, in Western Romania, on different soil types having various fertility properties. The experiment is based on studying the effect of different urea fertilizers: with nitrification inhibitor and urease inhibitor versus classic urea, in different amounts. The conclusion reached is that the most efficient nitrogen fertilizer for wheat and rapeseed crops, was nitrification inhibitor urea.
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