FOLIAR FEEDING PROGRAMME FOR WINTER RAPESEED CROPS IN AUTUMN 2022
The autumn period in winter rapeseed growing technology is extremely important for obtaining the planned harvest, and therefore a set of measures is needed to better prepare plants for adverse weather conditions.
Important points to pay attention to:
- Formation of future productive stems begins at the 4-leaf stage (BBCH14). Balanced mineral nutrition and a longer period of bud formation at the top of the root collar ensure a higher yield.
- Supplying plants with boron. Signs of boron deficiency in autumn show clearly as chlorosis of young leaves, red-violet spots and microcracks on the main root. Acute boron shortage in autumn slows the growth and development of the root system, causes insufficient development of conducting bundles and the growing point, and reduces the accumulation of sugars and their transport to the root collar. It also worsens the frost and winter hardiness of plants, which causes deformation and hollowness of the rapeseed root system.
- Softening the harsh action of growth regulators. Growth regulation of winter rapeseed is carried out from the 3–4 leaf stage. Several treatments are often necessary. In favorable weather and with recommended product doses, plants tolerate the stress from growth regulators relatively easily. However, in drought or with increased doses rapeseed plants can be under severe stress, which must be corrected.
Taking these factors into account, we offer the following options for feeding winter rapeseed with «ECOORGANIC» fertilizers:
On crops with visual signs of boron shortage we recommend applying ECOLINE Boron (Organic) at a dose of 1.0 l/ha, in other cases – 0.5–1.0 l/ha.
When signs of stress appear, carry out foliar feeding with ECOLINE Phosphite (K) 1.0 l/ha + ECOLINE Boron (Premium) 0.5–1.0 l/ha (given the unstable weather in autumn, so that plants take up boron as quickly as possible to accumulate sugars in the root collar).
On fields with soils of light texture, eroded soils, where magnesium and boron shortage may appear, we advise using ECOLINE Boron (Organic) 1.0 l/ha + ECOLINE Magnesium (Chelates) 1.0–1.5 l/ha + ECOLINE Phosphite (K) 1.0–2.0 l/ha.
Given that boron is a low-mobility element in the plant, we recommend applying it twice, 0.5–0.75 l/ha each time, repeating the application after 10–15 days!
