1 Dholera Soil Reclamation Dholera Soil Reclamation

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Dholera Soil ReclamationDholera Soil Reclamation

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Erstwhile flourishing Port of Dholera, Erstwhile flourishing Port of Dholera, Gujarat, IndiaGujarat, India

Barren Uncultivable LandBarren Uncultivable Land High Soil SalinityHigh Soil Salinity Lack of DrainageLack of Drainage


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Soil SamplingSoil Sampling

Land SurveyLand Survey


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Soil SamplingSoil Sampling


SampleSample TBCTBC AzotoAzoto PSBPSB HalophileHalophile pHpH OC%OC% NaCl %NaCl %

Soil Soil samplesample

> 10> 1077 NONO NONO NONO 7.77.7 0.90.9 8.08.0

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ABCDE

5m5m 5m5m 5m5m

5m5m

5m5m5m5m

5m5m

1% Acid Wash1% Acid Wash Water WashWater Wash

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Raised Bed FormationRaised Bed Formation


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Water Wash Water Wash Plot A, B & CPlot A, B & C


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1% Acid Wash Plot D & E

1% Acid Wash Plot D & E


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Control PlotControl Plot


Ploughing 6” soil

Allow 24 to 48 hrs sun drying

Soil Washing Soil Washing

Impound 20kl water 1st~24 hrs Impound 20kl water 2nd~24hrs Impound 20kl water 3rd~24hrs

Crop Sown Sesbania sp (green manure crop)

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Ploughing 6” soil


Soil WashingSoil Washing



Gypsum Gypsum PlotPlot

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Soil WashingSoil Washing



Ploughing 6” soil


Celrich+ Celrich+ PlotPlot

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Dholera Soil ReclamationDholera Soil Reclamation1% Acid Treatment1% Acid Treatment

Spraying 100 ltr on surface

Soil WashingSoil WashingImpound 20kl water 1st~24 hrsImpound 20kl water 2nd~24hrs Impound 20kl water 3rd~24hrs


Ploughing 6” soil


Celrich+PloCelrich+Plott

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Dholera Soil ReclamationDholera Soil Reclamation1% Acid Treatment

Spraying 100 ltr on surface

Soil WashingSoil WashingImpound 20kl water 1st~24 hrs Impound 20kl water 2nd~24hrsImpound 20kl water 3rd~24hrs


Ploughing 6” soil


Celrich + Celrich + Gypsum Gypsum

PlotPlot

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Plot A – Water Wash - Control PlotSample TBC Azoto PSB Halophile pH OC% NaCl%

Soil sample > 107 NO NO NO 7.7 0.9 8.0

Control plot 1.0 X 107 2.0 X 104 NO NO 8.4 1.77 0.22

18days of sowing 1.3 X 109 5.0 X 105 NO NO 8.4 0.32 0.21

After 2months >109 1.0 X 104 NO NO

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Plot B – Water Wash - Gypsum


Sample TBC Azoto PSB Halophile pH OC% NaCl%


150kg gypsum 1.5 X 109 3.0 X 104 3.0 X 104 NO 7.9 0.43 0.43

18days of sowing

1.0 X 109 3.0 X 104 1.0 X 104 NO 7.8 0.33 0.15

After 2months 1.0 X 109 4.0 X 105 NO NO

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Plot C – Water Wash - Celrich+




150kg Celrich [C] 4.5 X 109 3.5 X 104 1.0 X 104 NO 8.1 1.0 0.32

18days of sowing 2.0 X 1010 1.0 X 105 1.0 X 104 NO 8.6 0.65 0.11

After 2months >109 3.0 X 104 1.0 X 104 NO

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Plot D - 1% Acid Wash – Celrich+




150kg Celrich >109 4.0 X 104 1.0 X 104 NO 8.0 1.77 0.34


After 2months 1.4 X 109 1.0 X 105 1.0 X 104 NO

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Plot E - 1% Acid Wash – Celrich + GypsumSample TBC Azoto PSB Halophile pH OC% NaCl%


100kg Cel+50kg Gyp

1.8 X 109 3.0 X 104

7.0 X 104

NO 7.6 0.9 0.33


After 2months 1.3 X 109 8 X 104 1.0 X 104 NO

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Sample TBC Azoto PSB Halophile

pH OC% NaCl%

Soil sample > 107 102 + NO NO 7.7 0.9 8.0

Celrich sample 5.4 X 109 4.0 X 105 3.0 X 104 NO 7.5 8.7 0

Gypsum sample

NO NO NO 4.4 0 0

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System 1: Big Beds & Channels (BBC)

Croppingarea Cropping

area

Slope < 0.8% towards a sub or main drain

10 m 10 m 10 m

1 m

Ideal for areas close to sea, up to about 10 km from the sea and water table is in less than 2 m from the ground

50% area can come under cultivation with in 2 to 3 years & increase to 75% over years


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System 2: Broad Bed & Furrow (BBF)

Slope < 0.8% towards a sub or main drain

Croppingarea

Ideal for areas beyond 10 km from the sea and water table is more than 2 m from the ground

Almost 100% area can come under cultivation within 2 to 3 years

1.5 m


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Thank You

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Project Economics ~ System 1:BBCArea : 50 haProject year : 1st 2nd 3rd TotalLand Preparation: 37.50 37.50 [email protected]=Rs.75000x50he

Soil Amendment: 5.25 3.50 1.75 [email protected] per ton x 50he

Green Manure: 0.40 0.40 0.40 1.2040kg@Rs20x50hex3yr

Crop Production nil 1.25 1.25 2.50Rs. 2500 x 50he

Capacity Building 2.82 1.88 1.88 6.5870day x Rs.5000=Rs.3.5+Rs.1.68

Total Cost 45.97 7.03 5.28 58.28

Administrative Exp 4.60 0.70 0.53 5.83

Project Cost Project Cost 50.57 50.57 7.73 7.73 5.81 5.81 64.1164.11

Main & Sub-drainage cost not included in above estimation


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Project Economics ~ System 2:BBFArea : 50 haProject year: 1st 2nd 3rd Total

Rs. in Lacs Rs. in Lacs Rs. in Lacs Rs. in Lacs Land Preparation: 16.25 16.25 [email protected]=Rs.25000x50he

Soil Amendment: 10.50 7.00 3.50 [email protected] per ton x 50he

Green Manure: 0.75 0.75 0.75 2.2575kg@Rs20x50he x3 yr

Crop Production nil 2.38 2.38 4.76Rs. 4750 x 50he

Capacity Building 2.82 1.88 1.88 6.5870day x Rs.5000=Rs.3.5+Rs.1.68

Total Cost 30.32 12.00 8.51 50.83

Administrative Exp 3.03 1.20 0.85 5.08

Project Cost Project Cost 33.35 33.35 13.2113.21 9.36 9.36 55.9155.91

Main & Sub-drainage not included in above estimation


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Project Benefits ~ Saline Soil Reclamation Project

Unit System 1: BBC ~ System 2: BBFProject Cost Rs. in Lacs 64.11 55.91Crop Cultivation Rs. In Lacs/ 10 yrs 9.63 18.29Interest Rs. in Lacs / 10 yrs 8.18 17.50Total Cost 81.91 91.70

Employment Opportunity 37.50 3.75Balance Cost Rs. in Lacs / 10 yrs 44.41 87.95

Revenue Generation Rs. in Lacs /10 yrs 126.60 253.20Net Revenue Rs. in Lacs / 10 yrs 82.19 165.25 Annualized ROI 18.50% 18.78%

Revolving Fund Rs. in Lacs / 10 yrs 49.26 87.97Income Distribution Rs. in Lacs /10 yrs 32.93 77.29


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Documents

1 Dholera Soil Reclamation Dholera Soil Reclamation