engleski

The influence of different soil tillage and top dressing management on post-harvest sown millet

Post-harvest cropping is one of the solutions to the growing demands both in food and bio- energy. The millet crop (Panicum miliaceum) trials were set up at three sites in northeastern Croatia during the summers of 2009 and 2010. After the harvests of main crops (winter barley, winter wheat or oilseed rape), three soil tillage treatments were applied: CT) mouldboard ploughing (25-30 cm deep), followed by disk harrowing and seedbed preparation ; HDH) two passes by disk harrow (15-20 cm deep), followed by seedbed preparation, and ; LDH) single pass of disk harrow only. Beside the no- side-dressing control (NO), four sidedressing were applied twice: KAN) 100 kg ha-1 KAN (27 % N) in granular form ; UF) 60 kg ha-1 urea (46 % N), applied as 5 % foliar fertilizer ; PM1) 8 l ha-1 of foliar fertilizer "Profert Mara", which contains both macro (N, P, K, Ca) and micro (B, Cu, Fe, Mn, Mo and Zn) nutrients, and PM2) double rate of PM1. There were no significant differences among soil tillage treatments (1895, 1932 and 1902 kg ha-1 for CT, HDH and LDH, respectively). In both years, all side- dressing treatments had higher yield than control (1541 kg ha-1).Treatments KAN and UF were not different (1744 and 1848 kg ha-1), but they had lower yield than PM1 (2009 kg ha-1). The highest yield was on PM2 (2408 kg ha-1). Results are suggesting better effects of foliar than granular fertilizers for post-harvest sown millet, either in drought (year 2009) or over wet (year 2010)conditions.

millet ; post-harvest crop ; soil tillage ; side-dressing ; foliar fertilization

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