Zinc deficiency made worse by
- Organic soils
- High pH soils
- Soils rich in phosphorus
- Soils receiving high phosphorus application
- Cold wet conditions
Zinc is important for
- Photosynthesis
- Function of growth regulators for internode elongation
- Improved seed germination and seed yield
- Improved bulb yield
Yara recommended fertilizers for Zinc
YaraVita® MANCOZIN™
Onion: 1½ quarts/acre when there is sufficient leaf area to obtain coverage (4 to 6 leaf). Repeat during bulking if necessary. Water rate: 3 to 20 gallons/acre.
Read more about YaraVita® MANCOZIN™YaraVita® ZINTRAC™
Onions: 1 pint/acre when sufficient leaf area to intercept spray. Water rate: 3 to 20 gallons/acre. For use in Wisconsin: YaraVita Zintrac can be applied to this crop in Wisconsin requiring a medium to high level of zinc.
Read more about YaraVita® ZINTRAC™NUTRA-PHOS CALZINC
Onion: 3 to 10 lb. per acre per application. Repeat as needed. Apply aerial applications in at least 5 gallons/acre and ground applications in at least 10 gallons/acre; however, when total application gallonage is 25 gallons per acre or less, DO NOT mix more than 1 lb. of this product per gallon of water.
Read more about NUTRA-PHOS CALZINCNUTRA-PHOS Zn-K PLUS
Onion: 3 to 10 lb. per acre per application. Repeat as needed. Apply aerial applications in at least 5 gallons/acre and ground applications in at least 10 gallons/acre; however, when total application gallonage is 25 gallons per acre or less, DO NOT mix more than 1 lb. of this product per gallon of water.
Read more about NUTRA-PHOS Zn-K PLUS
