Boron deficiency vs. healthy plant-Maize

Change crop

Nutrients

Maize - Growth retardation

Symptoms
Yellow or white spots may develop on leaves with brown waxy raised streaks as deficiency develops. Growth is stunted with shortened internodes

Reasons
Boron deficiency (right)

Boron deficiency vs. healthy plant 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

Improved cob and kernel development
Improved crop development
Increased yield

Yara recommended fertilizers for Boron

YaraTera CHELATE 1089

Maize: Apply 2 kg/ha before planting (can be coated on pre-plant fertilizers) and a further 1 kg/ha at 3, 5, 7 weeks after planting.

YaraTera CHELATE 1090

Maize: Apply 2 kg/ha before planting (can be coated on pre-plant fertilizers) and a further 1 kg/ha at 3, 5, 7 weeks after planting.

YaraVita BORTRAC 150

Maize: 3 l/ha at 4 to 8 leaf stage. For moderate to severe deficiency, a repeat application may be necessary 10 to 14 days later. Water rate: 30 to 200 l/ha.

YaraVita TRI-PHOLATE

Maize: Apply 2-3 kg/ha at 4-6 leaf stage. Apply a further 1 kg/ha just prior to flowering. Water rate: 200 l/ha for tractor driven sprayer. 100,000 l/ha for application through irrigation system.