Integrated nutrient management in mango

1
Role and deficiency symptoms of phosphorous in
Mango

Introduction

Improved yield in mango and to maintain
sustainability of the soil, require judicious
application of phosphorous through organically
and inorganically. But continuous and imbalanced
use of phosphorous through chemical source affect
the soil health as well yield of the mango tree.
Therefore, it is important to apply phosphorous
judiciously by both organic and inorganic source
to get higher yield without affecting soil health.
Hence to have knowledge of role and deficiency
symptoms of phosphorous is important for timely
and judicious application of phosphorus in mango.
2
Role and deficiency symptoms of phosphorous in
Mango
Role of phosphorous in Mango

• Phosphorus favours root system development,
  production of a strong trunk, and retention and
  maturation of fruits.
• Improves yield and quality of fruit in mango.
• It increases the disease resistance in plants,
  due to stout and vigorous growth.

3
Role and deficiency symptoms of phosphorous in
Mango
Role of phosphorous in Mango

• Phosphorus is required to synthesis ATP,
  cellular molecules engaged in respiration
  process to support plant life. P is also found
  in other bio- molecules such as nucleic acids,
  enzymes, certain proteins and in cell membrane
  phospholipids.

4
Role and deficiency symptoms of phosphorous in
Mango
Deficiency symptoms of Phosphorous

• Slowing growth, premature falling of leaves,
  drying and death of branches are seen due to
  phosphorous deficiency
• Due phosphorous deficiency, substantial
  decreases in yield are also caused.

5
Role and deficiency symptoms of phosphorous in
Mango
Deficiency symptoms of Phosphorous

• Deficiency of P may result in a weaker root
  system.
• Restricting the uptake of water and nutrients.
• Slowing the maturation of the fruits, which
  acquire a course texture.

6
Role and deficiency symptoms of phosphorous in
Mango
Deficiency symptoms of Phosphorous

• An early symptom is the development of reddish
  purple colour on the underside of leaves, first
  starting as spot, spreading over the entire leaf
  with viens finally becoming reddish purple.
• The higher level of phosphorus in shoots of
  Dashehari found favourable for flower-bud
  formation.
• Development of necrotic areas on the margins of
  leaves which become chlorotic and sheds heavily.

7
Role and deficiency symptoms of phosphorous in
Mango

Let Us Sum Up

Among macro nutrients, phosphorous is an
important nutrients and plays vital role in
growth and development of fruit crops.
An early symptom is the development of reddish
purple colour on the underside of leaves, first
starting as spot, spreading over the entire leaf
with viens finally becoming reddish purple.
It is important to use this element at right time
and right amount .