Mais - Growth retardation
Sintomi
The cobs of K-deficiency plants are narrowed and peaked. Grains in the cob tips are only poorly filled.
Cause
Potassium deficiency (cobs at the right side)
Mais - Growth retardation
Sintomi
The cobs of K-deficiency plants are narrowed and peaked. Grains in the cob tips are only poorly filled.
Cause
Potassium deficiency
Mais - Size reduced
Sintomi
Cob size is reduced and filling on cob tip is not complete
Cause
Potassium deficiency on cobs (right)
Mais - Chlorosis
Sintomi
Yellow/bronze stripes and spots occur on the marginal area between the veins. Leaf scorch starting on leaf tips and margins spreads over the leaf blade with progressing deficiency.
Cause
Potassium deficiency
Mais - Chlorosis
Sintomi
Yellow/bronze stripes and spots occur on the marginal area between the veins. Leaf scorch starting on leaf tips and margins spreads over the leaf blade with progressing deficiency.
Cause
Potassium deficiency
Mais - Deformation
Sintomi
The cobs of K-deficiency plants are small and peaked. Grains in the cob tips are only poorly filled.
Cause
Potassium deficiency
Potassium deficiency peggiorato da
- Acidic soils (low pH)
- Sandy or light soils (leaching)
- Drought conditions
- High rainfall (leaching)
- or heavy irrigation
- Heavy clay (illite) soils
- Soils with low K reserves
- Magnesium rich soils
Potassio è importante per
- Healthy, green foliage
- Better root growth
- Increased yields
Fertilizzante Yara consigliato per Potassio
YaraVita CROP BOOST
Maize: 5 l/ha at the 4 to 8 leaf stage. Water rate: 30 to 200 l/ha. N.B. Do not spray in slow drying conditions. Alternatively: 2 to 5 l/ha at the 4 to 6 leaf stage. Repeat 10 to 14 days later if necessary. Water rate: 30 to 200 l/ha
Leggi di più su YaraVita CROP BOOSTYaraVita FOLIAR POTASH
Maize: 5 l/ha at the 4 to 8 leaf stage. Water rate: 200 l/ha.
Leggi di più su YaraVita FOLIAR POTASH
