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Production · Protection · Nutrients · Water
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PHYSIOLOGICAL DISORDERS IN FIELD CROPS

Identification of Physiological Disorders in Agricultural Crops

CropMaladyCorrective measure
RiceSevere chlorosis of leaves1%super phosphate and 0.5% ferrous sulphate
RiceIrregular flowering and chaffiness multiple deficiency of nutrients1% super phosphate and magnesium sulphate.
RiceTip drying and marginal scoring and browning1%super phosphate and 0.5% zinc sulphate.
MaizeChlorosisA spray solution containing 0.5% ferrous sulphate and 0.5% urea.
Maize'White bud' yellowing in the bud leaves only0.5% zinc sulphate spray with 1% urea.
MaizeTip drying and marginal scoring pinkish colouration of lower leaves1% super phosphate and 0.5% zinc sulphate.
MaizeMarginal scorching and yellowing.0.5% ferrous sulphate and 1%urea
Irregular drying of tips and margins25 kg of zinc sulphate / ha
SorghumChlorosis of younger leavesSpray of 0.5% ferrous sulphate with 0.5%urea and 0.5% ammonium sulphate
CowpeaWater soaked necrotic spots on leaf surface. Root growth very much restricted in 10-12 days old seedlingSpray containing sulphate and zinc sulphate 0.1% and 0.1% urea
GroundnutChlorosis of terminal leaves0.5% ferrous sulphate and urea 1%

Severe chlorosis of leaves

Chlorosis

1%super phosphate and 0.5% ferrous sulphate

Irregular flowering and chaffiness multiple deficiency of nutrients

1% super phosphate and magnesium sulphate.

Tip drying and marginal scoring and browning

1%super phosphate and 0.5% zinc sulphate.

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

'White bud' yellowing in the bud leaves only

0.5% zinc sulphate spray with 1% urea.

Tip drying and marginal scoring pinkish colouration of lower leaves

1% super phosphate and 0.5% zinc sulphate.

Marginal scorching and yellowing.

0.5% ferrous sulphate and 1%urea

Irregular drying of tips and margins

25 kg of zinc sulphate / ha

Chlorosis of younger leaves

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

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

Chlorosis of terminal leaves

0.5% ferrous sulphate and urea 1%

Leaf chlorosis in riceMaize: Marginal scorchingLeaf chlorosis in pulsesTerminal leaf chlorosis in groundnut