Agriculture
Plant Nutrition :: Physiological disorders

PHYSIOLOGICAL DISORDERS IN FIELD CROPS

Identification of Physiological Disorders in Agricultural Crops

 Crop  Malady Corrective measure
Rice

Severe chlorosis of leaves 

1%super phosphate and 0.5% ferrous sulphate

Rice

Irregular flowering and chaffiness multiple deficiency of nutrients

1% super phosphate and magnesium sulphate.

Rice

Tip drying and marginal scoring and browning

1%super phosphate and 0.5% zinc sulphate.

Maize

Chlorosis

A spray solution containing 0.5% ferrous sulphate and 0.5% urea.

Maize

'White bud' yellowing in the bud leaves only

0.5% zinc sulphate spray with   
1% urea.

Maize

Tip drying and marginal scoring pinkish colouration of lower leaves

1% super phosphate and 0.5% zinc sulphate.

Maize

Marginal scorching and yellowing.  

0.5% ferrous sulphate and 1%urea

Irregular drying of tips and margins

 25 kg of zinc sulphate / ha 

Sorghum

Chlorosis of younger leaves

Spray of 0.5% ferrous sulphate with 0.5%urea and 0.5% ammonium sulphate

Cowpea

Water soaked necrotic spots on leaf surface.  Root growth very much restricted in 10-12 days old seedling

Spray containing sulphate and zinc sulphate 0.1% and 0.1% urea 

Groundnut

Chlorosis of terminal leaves

0.5% ferrous sulphate and urea 1%

 

Leaf chlorosis in rice
Maize: Marginal scorching
Leaf chlorosis in pulses
Terminal leaf chlorosis in groundnut

 

 
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