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Barley

Take a look at the images below, if your Barley looks like any of the pictures, we have written what the likelihood deficiency would be, read more to find out the solution to get your Barley growing to its maximum potential.

Manganese

Usually visible at the three leaf stage and after. Deficiency is characterised by pale green or yellow leaves, and often “floppy” growth. Severe deficiency advances from paling and yellowing to white interveinal streaks along the leaf, which can coalesce into bleached interveinal patches. This deficiency occurs in well defined areas in fields that can vary considerably in size. Alkaline soils, organic soils, light sands and soils that are poorly consolidated are prone to Manganese deficiency. Soils with high levels of calcium, Iron and Magnesium can contribute to Manganese shortages.

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Magnesium

First seen on the older leaves as paler green coloured lines running along the leaf. This symptom is easier to spot when the leaf is held up to the light. In severe cases interveinal chlorosis can coalesce at leaf margins and cause necrosis.

Magnesium shortages occur on low pH soils, calcareous soils, light sands, and soils with a high (4+) Magnesium index. Other metals have an antagonistic effect if they are too abundant.

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Copper

Barley is the most sensitive cereal crop to Copper deficiency. Copper deficiency is rarely seen before May when ears are emerging and malformation can be seen. Very early copper shortages are seen first as bleaching or chlorosis (often confused with herbicide damage) of the leaf tip of cereals, severe cases result in blind grains due to reduced pollination sites. Yield is greatly reduced due to this. In severe cases barley ears are bent over – this is known as necking. The awns are bleached white in some cases.

Organic alkaline soils and light sands may have copper shortages.

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