Evaluation of the Efficiency of Celeriac Fertilization with the Use of Slow-acting Fertilizers

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• 作者：Marcin Niemiec^a ; ^{niemiecm@o2.pl" class="auth_mail" title="E-mail the corresponding author} ; Anna Szeląg-Sikora^b ; Michał Cupiał^b
• 关键词：integrated production ; the effectivensess of fertilization ; sustainable fertilization ; slow-acting fertilizer ; celeriac.
• 刊名：Agriculture and Agricultural Science Procedia
• 出版年：2015
• 出版时间：2015
• 年：2015
• 卷：7
• 期：Complete
• 页码：177-183
• 全文大小：196 K

文摘

The goal of this work was to determine the applicability of slow-acting fertilizers in optimization of the effectiveness of celeriac production under conditions of integrated plant production. The goal was realized by performing a strict experiment. Celeriac (Diamant cultivar) was the test plant. A controlled-release fertilizer was used for fertilization; its NPK composition (%) was 18-05-10+4CaO+2MgO. Moreover, conventional fertilizers of ammonium nitrate, granular triple superphosphate and potassium salt were used. Based on the results of the conducted experiments, indices that reflect the efficiency of nitrogen fertilization (agronomic effectiveness, productivity coefficient, and physiological effectiveness) were calculated. The yield of plants in the control treatment amounted to 32.1 Mg · ha^-1. The highest yield (49.73 Mg · ha^-1) was obtained in the treatment with the addition of 400 kg of the slow-acting fertilizer and full doses of phosphorus and potassium. The most optimal values of the indices of fertilization effectiveness were obtained in the treatments where 400 and 500 kg · ha^-1 of the slow-acting fertilizer had been added. Calculated indices of fertilization efficiency indicate that, in relation to integrated methods of production with the use of conventional fertilizers, fertilization optimization with the use of slow-acting fertilizers may improve fertilization efficiency.