Nutrient deficiency in sulphur presentation By, (Avin Kharel, Aviyan Pandey, Awis Pant)

1. NUTRIENT DEFICIENCY IN SULPHUR
Presented by:
Avin kharel (Roll No: 16)
Aviyan Pandey (Roll No: 17)
Awis Pant (Roll No: 18)

2. INTRODUCTION
• It is present in the soil in the form of organic and inorganic form and absorbed
by plant in the form of SO4--.
• As the source of sulphur are organic matter, inorganic minerals, rainfall , rocks
etc
• It’s concentration ranges from 0.05-1%.
• At high pH,S is found as CaSO4 and low pH So4– is adsorbed by Al and Fe
oxides.
• Behavior of sulphur in plants system is more or less similar to that of nitrogen.
eg: oxidation – reduction, mineralisation etc
• Sulpher requirements is highest for the plants of cruciferae family followed by
Leguminous and Graminae.
• It is grouped into total available organic and non-sulphite sulphur.

3. Roles of Sulphur in Plants
• Essential for the synthesis of sulphur containing amino acid
(cystine,methionine), which are essential compounds of protein.
• Help in the formation of disulphide bond between the polypeptide bond.
• It promotes root nodule formation on the root of legume.
• It involves in the synthesis of glucosides in mustard oil which increases the
oil seed.
• Help in the synthesis of other metabolites like coenzyme A, biotin,
thiamine,Vitamin B and glutathione.
• Sulfhydryl group are necessary for the activity of many enzyme.
• Helps in synthesis of chlorophyll.

4. DEFICIENCY SYMPTOMS OF SULPHUR
Deficiency symptoms are:
• Sulphur deficiency causing yellowing (I.e chlorosis) of the
leaves.The younger leaves are affected first,causing them to
convert light green to yellow.
• Accumulation of No3- in plant and reduction of protein due to S
deficiency.
• Uniformity chlorotic symptoms due to S-deficiency resemble to
N.However,N- deficiency symptoms appears on matured leaves
while S- deficiency occurs on young leaves.
• Reduction in nodule formation in legumes.
• Anthocyanin accumulation (responsible for purple colouration).
• Premature leaf fall.
Sulphur is immobile elements in plants.Leaf becomes uniformly
yellow as the chlorophyll contents declines.

5. • Rate of plant growth is reduced.Shoot growth is more
effected than root growth.
• Reduction in oil content of oil seed crops such as
mustard,rapeseed,peanut etc.
• Development of reddish colour on undersides of
leaves of cabbage and rapeseed.As the deficiency
progressed, in cabbage there is reddening and
purpling on both surface of leaves.

6. Correction
• Apply recommend basal dose of sulphur by mixing either elemental
sulphur or gypsum with surface soil before sowing.