Mais - Growth retardation
Sümptomid
Yellow or white spots may develop on leaves with brown waxy raised streaks as deficiency develops.
Growth is stunted with shortened internodes
Põhjused
Boron deficiency (right)
Puudust süvendab
- Sandy soils
- Alkaline soils
- Soils low in organic matter
- High levels of nitrogen
- High levels of calcium
- Cold wet weather
- Periods of drought
Boor on oluline
- Improved cob and kernel development
- Improved crop development
- Increased yield
Väetised kasutamiseks, kui on puudus elemendist: Boor
YaraVita BORTRAC 150
Maize: 3 l/ha at 6-8 leaf stage. For moderate to severe deficiency, a repeat application may be necessary 10-14 days later. Water rate: 200 l/ha.
Loe lähemalt tootest YaraVita BORTRAC 150
