玉米 - Growth retardation
症状
The cobs of K-deficiency plants are narrowed and peaked. Grains in the cob tips are only poorly filled.
原因
Potassium deficiency (cobs at the right side)
玉米 - Growth retardation
症状
The cobs of K-deficiency plants are narrowed and peaked. Grains in the cob tips are only poorly filled.
原因
Potassium deficiency
玉米 - Size reduced
症状
Cob size is reduced and filling on cob tip is not complete
原因
Potassium deficiency on cobs (right)
玉米 - Chlorosis
症状
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.
原因
Potassium deficiency
玉米 - Chlorosis
症状
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.
原因
Potassium deficiency
玉米 - Deformation
症状
The cobs of K-deficiency plants are small and peaked. Grains in the cob tips are only poorly filled.
原因
Potassium deficiency
Potassium deficiency使变得更糟
- 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
钾很重要
- Healthy, green foliage
- Better root growth
- Increased yields
对于钾雅苒推荐的产品是
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
阅读更多关于YaraVita CROP BOOSTYaraVita FOLIAR POTASH
Maize: 5 l/ha at the 4 to 8 leaf stage. Water rate: 200 l/ha.
阅读更多关于YaraVita FOLIAR POTASH
