Boron deficiency made worse by
- Sandy soils
- Alkaline soils
- Soils low in organic matter
- High levels of nitrogen
- High levels of calcium
- Cold wet weather
- Periods of drought
Boron is important for
- Cell integrity
- Efficient uptake of Ca, K and N
- Development of young shoots and roots
- Low requirement of monocotyledons, susceptible to B toxicity