Training Schedule

Tea Cultivation :

One day on campus training programme on ‘New Planting in Tea’

Agricultural Engineering:
One day on campus training programme on ‘Tea Tasting’

Horticulture:
One day on campus training programme on ‘Exotic Vegetable cultivation’

Home Science:
One month on campus training programme on ‘Wool Knitting’

Soil Science & Plant Protection:
One day on campus training programme on ‘Organic farming’

Archives
    XV SAC

Soil Science

 

Soil pH
Soil pH is a measure of the soil acidity or Soil alkalinity. An acid solution has a pH value less than 7. While a basic solution always has a pH larger than 7, an alkaline solution (i.e. a solution with positive acid neutralizing capacity) does not necessarily have a pH larger than 7. The soil pH classification are as follows


Sl.No

pH Range

Abbreviation

Category

1

<4.50

EA

Extremely Acidic

2

4.51 – 5.00

VSA

Very Strongly Acidic

3

5.01 -5.50

SA

Strongly Acidic

4

5.51 – 6.00

MeA

Medium Acidic

5

6.01 – 6.50

MA

Mildly Acidic

6

6.51 – 7.30

Ne

Neutral

7

7.31 – 7.80

Mal

Mildly  Alkaline

8

7.81 – 8.40

MoAl

Moderately Alkaline

9

8.41 – 9.00

Sal

Strongly Alkaline

10

>9.00

VSAI

Very Strongly Alkaline

 

Electrical Conductivity (EC) in dS m-1

 

Sl.No

EC Range

Abbreviation

Category

1

<0.50

N

Normal

2

0.50 – 1.00

H

High

3

>1.00

VH/I

Very high / Injurious

 

Soil Nutrients


An outstanding feature of life is the capability of living cells to take up substances from the environment and use them for synthesis of their own cellular components or as an energy source. The supply and absorption of chemical compounds needed for growth and metabolism is termed as nutrition and the chemical compounds required by an organism are termed as nutrients. Like any other crop, tea also requires N, P, K, S, Ca, Mg, Zn, Mn, B and Cl. .


Nitrogen  


Since nitrogen is responsible for vegetative growth, managing its availability in tea soils directly reflects in crop yield. Depending on the elevation, the organic matter is classified into three categories as mentioned in below table. The N dose is decided based on the OM status and anticipated yield. About 20 % of annual N is supplied in the form of ammonium sulphate, 15 % as calcium ammonium nitrate and the remaining 65% as urea. Nitrogen deficiency is identified by retarded shoot growth and yellowing of younger leaves.

 


SL.No

Category

Elevation in m above MSL

500-1500

1500-2000

>2000

1

Low

<2.6

<5.2

<7.8

2

Medium

2.6 – 7.8

5.2 – 10.4

7.8 – 13.0

3

High

>7.8

>10.4

>13.0

 

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