Cereais - Growth retardation
Sintomas
Severe N deficiency (right) results in poor yielding caused by a reduction of tiller number as well as diminished stem, ear and seed size.
Causas
Nitrogen deficiency (right)
Cereais - Growth retardation
Sintomas
Characteristic symptoms of N deficiency are reduced vigor, smaller leaves and a pale green or yellowish leaf color.
The symptoms first become visible on the old leaves which turn yellow and wither at progressing deficiency.
Extreme N deficiency causes early senescence and diminished ear size.
Causas
Nitrogen deficiency (left)
Sulphur deficiency, low pH and root damage cause similar symptoms.
Cereais - Growth retardation
Sintomas
Characteristic symptoms of N deficiency (right) are reduced vigor, smaller leaves and a pale green or yellowish leaf color.
The symptoms first become visible on the old leaves which turn yellow and wither at progressing deficiency.
Extreme N deficiency causes early senescence and diminished ear size.
Causas
Nitrogen deficiency (right)
Sulphur deficiency, low pH and root damage cause similar symptoms.
Cereais - Chlorosis
Sintomas
Characteristic symptoms of N deficiency are reduced vigor, smaller leaves and a pale green or yellowish leaf color.
The symptoms first become visible on the old leaves which turn yellow and wither at progressing deficiency. Necrosis starts on the leaf tip and progresses toward the leaf base.
Extreme N deficiency causes early senescence and diminished ear size.
Causas
Nitrogen deficiency(bottom)
Sulphur deficiency, low pH and root damage cause similar symptoms.
Symptoms of N and S deficiency in wheat and other small grains are very similar, thus a tissue analysis is often necessary to reveal the cause.
Cereais - Growth retardation
Sintomas
Severe N deficiency (left) results in poor yielding caused by a reduction of tiller number as well as diminished stem, ear and seed size.
Causas
Nitrogen deficiency (left)
Cereais - Growth retardation
Sintomas
Starting on the older leaves, N deficiency causes chlorotic yellowing and stunted growth of cereal plants.
Causas
Nitrogen deficiency
Symptoms of N and S deficiency in cereals are very similar, thus a tissue analysis is often necessary to reveal the cause.
Cereais - Growth retardation
Sintomas
Starting on the older leaves, N deficiency causes chlorotic yellowing and stunted growth of cereal plants. Tillering and ear size are reduced. Severe lack of N leads to early senescence.
Causas
Nitrogen deficiency (right)
Small grains are generally sensitive to insufficient N
Symptoms of N and S deficiency in cereals are very similar, thus a tissue analysis is often necessary to reveal the cause.
Cereais - Growth retardation
Sintomas
Severe N deficiency (right) results in poor yielding caused by a reduction of tiller number, stem and ear size.
Causas
Nitrogen deficiency
Nitrogen deficiency vs. optimum piorado por
- Low or high pH soils
- Sandy or light soils (leaching
- ) Low organic matter
- Drought conditions
- High rainfall (leaching) or heavy irrigation
- Addition or high levels of non-decomposed organic matter/manure (eg straw)
- Fast growing crops
Azoto É importante para
- Lusher, greener growth
- Optimal tiller production
- Increased grain yields and protein content
- Improved grain quality
Produtos recomendados pela Yara Azoto
YaraVita SAFE-N 300
Cereals: 10 to 20 l/ha from tillering to the end of the milk development stage in grain ripening (Zadoks G.S. 21 to 79). Repeat applications at 10 to 14 day intervals. Water rate: 200 l/ha. N.B. Note that later foliar nitrogen applications may raise grain nitrogen status.
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