Oireet
Leaves of Mn deficient plants show chlorotic spots and streaks which turn gray-white to brown and coalesce. Symptoms appear on younger and central leaves.
Leaves are kinked or bend down when the spotting is intense.
Plant growth is stunted.
Syyt
Manganese deficiency
Mn deficiency is enhanced by cool, dry weather.
Oireet
Light green areas within the stand indicate affected plants. The tramlines are not concerned. Because of the soil compaction the manganese is better available in these areas.
Syyt
Manganese deficiency
Characteristic symptoms of Mn deficiency are the dark green tractor lanes within the chlorotic area. Here the soil is compressed and less Mn oxidation occurs.
It is common that Mn deficiency chlorosis occurs in irregular patches within the stand. The chlorotic mottling is seen first on youngest fully expanded leaves. The susceptibility for manganese deficiency raises with high pH, high humus content, loose soil structure.
Often occurs in early spring as it is too cold for manganese deoxidizing bacteria.
Oireet
Young leaves of Mn deficient plants show chlorotic spots and streaks which turn brown to gray-white and coalesce.
Strongly affected leaf blades bend.
Syyt
Manganese deficiency
Oireet
Mn deficient plants show chlorotic spots and streaks which turn brown/gray-white, coalesce and may expand over the older leaves. Strongly affected leaf blades bend.
Syyt
Manganese deficiency
It is characteristic that Mn deficiency chlorosis occurs in irregular patches within the stand. The chlorotic mottling is seen first on youngest fully expanded leaves.
The susceptibility for manganese deficiency raises with high pH, high humus content, loose soil structure.
Often occurs in early spring as it is too cold for manganese deoxidizing bacteria.
Oireet
Leaves have grey specks or light brown lesions and they break/bend over near the centre section. Some leaves show signs of chlorosis which eventually hides the lesions.
Syyt
Manganese deficiency (Grey speck)
May be confused with applications of pesticides or foliar fertilisers.
Oireet
Leaves of Mn deficient plants show chlorotic spots and streaks which turn gray-white to brown and coalesce. Symptoms appear on younger and central leaves.
Leaves are kinked or bend down when the spotting is intense.
Plant growth is stunted.
Syyt
Manganese deficiency
Mn deficiency is enhanced by cool, dry weather.
Oireet
Leaves of Mn deficient plants show chlorotic spots and streaks which turn gray-white to brown and coalesce. Symptoms appear on younger and central leaves.
Leaves are kinked or bend down when the spotting is intense.
Plant growth is stunted.
Syyt
Manganese deficiency
Mn deficiency is enhanced by cool, dry weather.
Oireet
Leaves of Mn deficient plants show chlorotic spots and streaks which turn gray-white to brown and coalesce. Symptoms appear on younger and central leaves.
Leaves are kinked or bend down when the spotting is intense.
Plant growth is stunted.
Syyt
Manganese deficiency
Mn deficiency is enhanced by cool, dry weather.
Cereals: 1 to 3 l/ha from the 2 leaf stage to second node detectable (Zadok's G.S. 12 to 32). Repeat applications at 10 to 14 day intervals, within this timing, if necessary. For autumn sown crops, an application prior to winter dormancy may also be beneficial. In addition, 1 l/ha from second node detectable to flag leaf fully emerged (Zadoks G.S. 32 to 39). Water rate: 50 to 200 l/ha. Seed Dressing: 3 to 6 litres per tonne.
Lue lisää YaraVita GRAMITRELCereals: 1 l/ha at 2 leaf stage to second node detectable (Zadok's G.S. 12 to 32). Water rate: 200 l/ha. For severe deficiency, increase to 2 l/ha or repeat at the above rate. For autumn-sown crops, an application prior to winter dormancy is strongly recommended. Seed Dressing: Typically 3 litres per tonne. Rate can be increased up to 6 litres per tonne if necessary.
Lue lisää YaraVita MANCOZINCereals: 1 l/ha from 2 leaf stage to second node detectable (Zadok's G.S. 12 to 32). For moderate to severe deficiency repeat applications at 7 to 14 day intervals. Also, 0.25 l/ha from third node detectable to the end of booting (Zadok's G.S. 33 to 49). Water rate: 200 l/ha. Seed Dressing: 2 to 6 litres per tonne.
Lue lisää YaraVita MANTRAC PRO