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Distribution of micronutrients deficiencies across AEZ

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Distribution of micronutrients deficiencies across AEZ indicate zinc deficiency to be about 40% in 1, 2, 5,15,16,18,and 19 zones; 40-50% in 9,11and 12 zones; 50-55% in 4, 7, and 13,  and 55% in the remaining zones.
Soils of indo-gangetic plains showed 55, 47 and 36% zinc deficiency in trans-northern, central and eastern parts of IGP, while boron deficiency is 8, 37 and 68% in these regions of IGP.
Boron deficiency varies from 2 % in AER 2; 24-48 % in highly calcareous soils of AEZ 2, 9, and 14 and is most wide spread (39-68 %) in red and lateritic soils of AEZ 6,13,16,17 and 19.
Deficiencies of Cu and Mn were found sporadic. 
The problem of Fe and Mn deficiency has emerged in Trans-northern IGP (zone 9) more so under rice-wheat cropping while most of the soils tested adequate in available iron.
Its deficiency in all AEZs as well as toxicity in some coastal, submontane and red-lateritic soils is quite common (Table)


Table 6:Extent of micronutrient deficiencies in different Agro-Ecological Zones (AEZ) of India

SNo


Agroecological zones


Soil type


Per cent deficiency


Zn


Cu


Mn


Fe


1


West.Himalayas


Hill


21.0


-


-


-


2


West.plains and Kutch  Peninsula


Desert & Saline


36.0


3.6


8.3


16.6


3


Deccan Plateau


Red and black


57.5


0.1


0.6


4.8


4


North.Plain and Central  Highlands


Alluvial derived


54.6


2.4


4.3


9.6


5


Central highlands and  Kathiawar Peninsula


Med. & deep black


64.2


0.7


1.9


3.0


6


Deccan Plateau


Sh.& med.   black


64.6


0.5


1.9


11.8


7


Deccan Plateau and Eastern Ghats


Red & med.   black


51.6


0.1


2.6


4.0


8


TN uplands and  Deccan Plateau


Red loam


57.0


17.6


8.4


19.9


9


Northern Plain


Alluvium desired


44.2


2.4


5.4


9.4


10


Central highlands & Deccan Plateau


Med. black clay

Red soil


76.5

58.0


0.3

1.0


0.7

0.6


6.1

2.5


11


Eastern Plateau (Chhatisgargh)


Red and yellow


44.5


0.7


0.1


0.9


12


Chhota Nagpur and Eastern Ghats


Red loam


49.1


0.9


1.8


0.5


13


Eastern Plain


Alluvium derived


54.7


1.6


17.6


19.6


14


Western Himalayas


Brown hill & forest


45.0


18.0


17.6


16.4


15


Assam and Bengal plains


Alluvium derived


34.0


0.5


0.2


0.3


16


Eastern Himalayas


Brown red and hill


20.0


0.4


1.0


0.6


17


Nort .h-Eastern hills (Purvanchal)


Alluvial derived


57.0


2.1


2.3


0.2


18


Eastern Coastal Plains


Alluvium derived


15.0


4.2


3.6


4.0


19


Western Ghats & Coastal Plains


Red, Lat. & Alluv..


36.0


24.0


1.0


0.8


20


A & D and Lakshadweep


Red loamy


20


-


-


-


All


All


All


45.4


3.3


4.5


8.3


File Courtesy: 
Brajendra and Vijai Pal Bhadana Directorate of Rice Research, Hyderabad - Published in Rice Knowledge Management for Food and Nutritional Food Security
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