Average monthly air temperature and precipitation during the experiment period, Vitomarci agrometeorological station (year 2019)
| Parameter | Month | ||||
|---|---|---|---|---|---|
| May | June | July | August | September | |
| Temperature (°C) | 12.4 | 22.4 | 21.3 | 21.6 | 16.1 |
| Precipitation (mm) | 208.6 | 58 | 89.8 | 42.2 | 77.6 |
Effect of treatment (nutrition program) on the storability of raspberries (change in fruit weight and volume and microbiological activity - occurrence of moulds) after storage at 5 °C for 7 days)_ Effect of nutrition approach is evident from the line “Nutrition program”, effect of nitrogen rate is evident from the first three values in the line “N-rate”, effect of used biostimulant is evident form the last two values in the line “BS”_ Different letters (in the individual line) mean statistically significant differences according to the Duncan’s MRT test (α < 0_05)_
| Treatment: → Parameter:↓ | Control | 60 kg N/ha | 80 kg N/ha | 80 kg N/ha + BS |
|---|---|---|---|---|
| Mass reduction (%) | 3.22±0.34 | 3.27±0.35 | 3.51±0.49 | 3.54±0.34 |
| Impact of: Nutrition program | ns | ns | ns | ns |
| N-rate | ns | ns | ns | / |
| BS | / | / | ns | ns |
| Volume reduction (%) | 16.78±7.64 | 22.08±13.37 | 17.03±8.4 | 22.67±9.39 |
| Impact of: Nutrition program | ns | ns | ns | ns |
| N-rate | ns | ns | ns | / |
| BS | / | / | ns | ns |
| Incidence of mould (%) | 57.12±4.37 | 68.07±5.31 | 69.65±6.61 | 75.61±7.55 |
| Impact of: Nutrition program | b | ab | ab | a |
| N-rate | b | a | a | / |
| BS | / | / | ns | ns |
Effect of nutrition regime on yield characteristics in raspberry cultivar 'Himbo -Top' (average values for one harvest period and cumulative values) (N: nitrogen, BS: biostimulant)_ Effect of nutrition approach is evident from the line “Nutrition program information”, effect of nitrogen rate is evident from the first three values in the line “N-rate” and effect of used biostimulant is evident from the last two values in the line “BS”_ Different letters (in the individual line) mean statistically significant differences according to the Duncan’s MRT test (α < 0_05)_
| Treatment: → Parameter:↓ | Control (20 kg N/ha) | 60 kg N/ha | 80 kg N/ha | 80 kg N/ha + BS |
|---|---|---|---|---|
| Yield (g/plant; average of all harvest periods) | 61.11±10.91 | 64.83±11.25 | 71.30±18.85 | 72.37±18.82 |
| Impact of: Nutrition program | ns | ns | ns | ns |
| N-rate | ns | ns | ns | / |
| BS | / | / | ns | ns |
| Weight of 1 fruit (g; average of all harvest periods) | 3.46±0.09 | 3.58±0.10 | 3.85±0.15 | 3.86±0.14 |
| Impact of: Nutrition program | b | b | a | a |
| N-rate | b | b | a | / |
| BS | / | / | ns | ns |
| Yield weight (g/plant) (cumulative for all harvest periods) | 916.65±163.65 | 972.45±168.75 | 1069.5±282.65 | 1085.5±282.14 |
| Impact of: Nutrition program | ns | ns | ns | ns |
| N-rate | ns | ns | ns | / |
| BS | / | / | ns | ns |
Soil analysis in the raspberry orchard at the beginning of the experiment
| Measurement | Value | Class |
|---|---|---|
| Potassium K2O (available) (mg/100 g sample) | 17.51 | B |
| Phosphorus P2O5 (available) (mg/100 g sample) | 17.80 | C |
| Humus (%) | 2.99 | |
| pH value | 6.65 |
Impact of treatment on soluble solids content, titratable acids and sweetness index (SSC: soluble solids content, TA: titratable acids; N: nitrogen, BS: biostimulant)_ Effect of nutrition approach is evident from the line “Nutrition program”, effect of nitrogen rate is evident from the first three values in the line “N-rate”, effect of used biostimulant is evident form the last two values in the line “BS”_ Different letters (in the individual line) mean statistically significant differences according to the Duncan’s MRT test (α < 0_05)_
| Treatment: → Parameter:↓ | Control (20 kg N/ha) | 60 kg N/ha | 80 kg N/ha | 80 kg N/ha + BS |
|---|---|---|---|---|
| Soluble solids (°Brix) | 7.1±0.24 | 6.48±0.18 | 6.65±0.19 | 6.43±0.25 |
| Impact of: Nutrition program | a | b | b | b |
| N-rate | a | b | ab | / |
| BS | / | / | ns | ns |
| Titratable acids (g/L) | 11.71±1.00 | 12.43±0.77 | 12.68±0.78 | 13.08±1.08 |
| Impact of: Nutrition program | ns | ns | ns | ns |
| N-rate | ns | ns | ns | |
| BS | ns | ns | ||
| Thiault index | 6.10±0.34 | 5.21±0.54 | 5.24±0.53 | 4.96±0.39 |
| Impact of: Nutrition program | a | ab | ab | b |
| N-rate | a | b | b | / |
| BS | / | / | ns | ns |
Fertilisation/fertigation program and dynamics in relation to development stage of raspberry plants (BBCH: Biologische Bundesanstalt und Chemische Industrie; BS: biostimulant; N: nitrogen)
| Growth phase/period | Fertiliser/measure | Fertiliser rates | Treatment |
|---|---|---|---|
| Dormant period (BBCH 00) | Pelletized manure | 1 T/ha | All treatments |
| Initiation of growth, flower bud development (BBCH 51-59) | Fertiliser A (Solinure®) | 25 kg/ha/week (3,17 g/plant); | 60 kg N/ha |
| 37,5 kg/ha/week (5,62 g/plant); | 80 kg N/ha, 80 kg N/ha + BS | ||
| Flowering, fruit formation, ripening (BBCH 61-79) | Fertiliser B (Hakaphos Violeta®) | 25 kg/ha/week (3,75 g/plant); | 60 kg N/ha |
| 37,5 kg/ha/week (5,62 g/plant); | 80 kg N/ha, 80 kg N/ha + BS | ||
| Harvesting period (BBCH 81-89) | Fertiliser C (NovaTec® Solub) | 25 kg/ha/week (3,75 g/plant); | 60 kg N/ha |
| 37,5 kg/ha/week (5,62 g/plant) | 80 kg N/ha, 80 kg N/ha + BS | ||
| 4 times during the growing season (BBCH 51-89) | Biostimulant (Vitanica® Si) | 8,75 ml/28 plants (0.31 mL/plant) - 2.08 l/ha | 80 kg N/ha + BS |