The Influence of the Application Technique and Amount of Liquid Starter Fertilizer on Corn Yield

Milan Drazic, Kosta Gligorevic, Milos Pajic, Ivan Zlatanovic, Velibor Spalevic, Paul Sestras, Goran Skataric and Branislav Dudic
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Milan Drazic: Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade–Zemun, Serbia
Kosta Gligorevic: Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade–Zemun, Serbia
Milos Pajic: Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade–Zemun, Serbia
Ivan Zlatanovic: Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade–Zemun, Serbia
Velibor Spalevic: Geography Department of the Faculty of Philosophy, University of Montenegro, Danila Bojovica bb, 81400 Niksic, Montenegro
Paul Sestras: Department of Land Measurements and Cadaster, Faculty of Civil Engineering, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, Romania
Goran Skataric: National Parks of Montenegro, 81000 Podgorica, Montenegro
Branislav Dudic: Faculty of Economics and Engineering Management, University Business Academy, 21102 Novi Sad, Serbia

Agriculture, 2020, vol. 10, issue 8, 1-13

Abstract: The aim of this research was to study the impact of application technique and rate of liquid starter fertilizer applied with a novel device on the production of corn. Starter fertilizer was applied in the root system range of freshly germinated plants in the ‘belt’ and ‘point’ forms at different quantities (35, 50, 70, and 100 L ha −1 ), which led to intensive plant growth in the initial stages of development. This adapted system was used for sowing and for application of the liquid starter fertilizer at the same time. The field trial was set up at two sites (two different land types), in the conditions of the natural water regime of the soil during the three vegetation seasons in the period 2016–2018. For this purpose, a prototype of the electronic device EUKU-01 was designed. The starter fertilizer was applied at 5 cm laterally from the row where the sowing was performed and 5 cm below the depth at which the corn seeds were sown. Data were statistically analyzed by two-factor analysis of variance, where the influence of mineral fertilizer treatment and the influence of liquid starter fertilizer treatment were observed as factors. The results showed that the optimal choice of the technique of liquid starter fertilizer application can result in fertilizer savings by 30% without reducing yield.

Keywords: starter fertilizer; application technique; corn; yield; corn planter; an electronic device (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2020
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