Table 4.
Emergence, Zn/Mn status (DAS), and final biomass yield of field-grown silo maize (Rolandinio) on a silty loam soil pH 6.9 at the experimental station “Ihinger Hof” University of Hohenheim with underfoot placement of di-ammonium phosphate (29 kg N, 32 kg P ha−1) and stabilized ammonium sulfate fertilization (161 kg N ha−1) with or without Zn/Mn seed dressing (Lebosol Mn500 SC, Zn700 SC), potassium silicate [1 mM] seed priming, water priming of foliar Si application of Si as (16 L Si [1 mM] + 100 ml Greemax® ha−1).
| Seed treatment | Application ode | Emergence 41 DAS [%] | Yield [t DM ha−1] | Zn status (45DAS) [μg g DW−1] | Mn status (45 DAS) [μg g DW−1] |
|---|---|---|---|---|---|
| Untreated | – | 44.00 ± 6.00d | 7.14 ± 0.46d (16.10 ± 1.0b) | 32.00 ± 2.60b | 48.00 ± 4.00a |
| Zn/Mn | Seed–dressing | 56.00 ± 7.00b | 11.07 ± 0.79b (16.40 ± 1.2b) | 65.00 ± 5.40a | 56.00 ± 4.50a |
| Water | Priming | 52.00 ± 9.00c | 8.10 ± 0.81c (17.2 ± 1.60ab) | 49.00 ± 4.08a | 57.00 ± 4.75a |
| K2SiO4 | Priming | 72.00 ± 15.00a | 12.89 ± 0.74a (17.8 ± 1.0a) | 59.00 ± 4.90a | 61.00 ± 5.08a |
| untreated | Si foliar | 46.00 ± 7.00d | 7.60 ± 0.37d (16.6 ± 3.40ab) | 36.00 ± 3.00b | 51.00 ± 4.25a |
Yield determinations with (in brackets) and without re-sowing by the end of May 2016. Means of five replicates per treatment. Significant differences (P < 0.05) are indicated by different characters.