1. 1 Dholera Soil Reclamation Dholera Soil Reclamation

2. 2 Erstwhile flourishing Port of Dholera, Gujarat, India Erstwhile flourishing Port of Dholera, Gujarat, India Q Barren Uncultivable Land Q High Soil Salinity  Lack of Drainage Dholera Soil Reclamation Dholera Soil Reclamation

3. 3 Soil Sampling Land Survey Dholera Soil Reclamation Dholera Soil Reclamation

4. 4 Soil Sampling Dholera Soil Reclamation Dholera Soil ReclamationSampleTBCAzotoPSBHalophilepHOC% NaCl % Soil sample > 10 7 NONONO7.70.98.0

5. 5 Dholera Soil Reclamation Dholera Soil Reclamation

6. 6 ABC DE 5m5m5m 5m 5m5m 5m 1% Acid Wash Water Wash

7. 7 Raised Bed Formation Dholera Soil Reclamation Dholera Soil Reclamation

8. 8 Water Wash Plot A, B & C Dholera Soil Reclamation Dholera Soil Reclamation

9. 9 1% Acid Wash Plot D & E 1% Acid Wash Plot D & E Dholera Soil Reclamation Dholera Soil Reclamation

10. 10 Control Plot Dholera Soil Reclamation Dholera Soil Reclamation Ploughing 6” soil Allow 24 to 48 hrs sun drying 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)

11. 11 Dholera Soil Reclamation Dholera Soil Reclamation Ploughing 6” soil Allow 24 to 48 hrs sun drying 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) Gypsum Plot

12. 12 Dholera Soil Reclamation Dholera Soil Reclamation 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) Ploughing 6” soil Allow 24 to 48 hrs sun drying Celrich+ Plot

13. 13 Dholera Soil Reclamation Dholera Soil Reclamation 1% Acid Treatment Spraying 100 ltr on surface 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) Ploughing 6” soil Allow 24 to 48 hrs sun drying Celrich+Plot

14. 14 Dholera Soil Reclamation Dholera Soil Reclamation 1% Acid Treatment Spraying 100 ltr on surface 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) Ploughing 6” soil Allow 24 to 48 hrs sun drying Celrich + Gypsum Plot

15. 15 Dholera Soil Reclamation Dholera Soil Reclamation Plot A – Water Wash - Control Plot SampleTBCAzotoPSBHalophilepHOC%NaCl% Soil sample> 10 7 NO 7.70.98.0 Control plot1.0 X 10 7 2.0 X 10 4 NO 8.41.770.22 18days of sowing1.3 X 10 9 5.0 X 10 5 NO 8.40.320.21 After 2months >10 9 1.0 X 10 4 NO

16. 16 Plot B – Water Wash - Gypsum Dholera Soil Reclamation Dholera Soil Reclamation SampleTBCAzotoPSBHalophilepHOC%NaCl% Soil sample> 10 7 NO 7.70.98.0 150kg gypsum1.5 X 10 9 3.0 X 10 4 NO7.90.43 18days of sowing1.0 X 10 9 3.0 X 10 4 1.0 X 10 4 NO7.80.330.15 After 2months1.0 X 10 9 4.0 X 10 5 NO

17. 17 Plot C – Water Wash - Celrich+ Dholera Soil Reclamation Dholera Soil Reclamation SampleTBCAzotoPSBHalophilepHOC%NaCl% Soil sample> 10 7 NO 7.70.98.0 150kg Celrich [C]4.5 X 10 9 3.5 X 10 4 1.0 X 10 4 NO8.11.00.32 18days of sowing2.0 X 10 10 1.0 X 10 5 1.0 X 10 4 NO8.60.650.11 After 2months>10 9 3.0 X 10 4 1.0 X 10 4 NO

18. 18 Plot D - 1% Acid Wash – Celrich+ Dholera Soil Reclamation Dholera Soil Reclamation SampleTBCAzotoPSBHalophilepHOC%NaCl% Soil sample> 10 7 NO 7.70.98.0 150kg Celrich>10 9 4.0 X 10 4 1.0 X 10 4 NO8.01.770.34 18days of sowing1.5 X 10 9 2.0 X 10 4 1.5 X 10 4 NO7.71.00.76 After 2months1.4 X 10 9 1.0 X 10 5 1.0 X 10 4 NO

19. 19 Dholera Soil Reclamation Dholera Soil Reclamation Plot E - 1% Acid Wash – Celrich + Gypsum SampleTBCAzotoPSBHalophilepHOC%NaCl% Soil sample> 10 7 NO 7.70.98.0 100kg Cel+50kg Gyp1.8 X 10 9 3.0 X 10 4 7.0 X 10 4 NO7.60.90.33 18days of sowing7.0 X 10 9 6.0 X 10 4 5.0 X 10 4 NO7.80.590.11 After 2months1.3 X 10 9 8 X 10 4 1.0 X 10 4 NO

20. 20 Dholera Soil Reclamation Dholera Soil Reclamation SampleTBCAzotoPSBHalophilepHOC%NaCl% Soil sample> 10 7 10 2 +NO 7.70.98.0 Celrich sample5.4 X 10 9 4.0 X 10 5 3.0 X 10 4 NO7.58.70 Gypsum sampleNO 4.400

21. 21 System 1: Big Beds & Channels (BBC) Cropping area 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 Dholera Soil Reclamation Dholera Soil Reclamation

22. 22 System 2: Broad Bed & Furrow (BBF) Slope < 0.8% towards a sub or main drain Cropping area 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 Dholera Soil Reclamation Dholera Soil Reclamation

23. 23 Thank You

24. 24 Project Cost 50.57 7.73 5.81 64.11 Project Economics ~ System 1:BBC Area : 50 ha Project year : 1st2nd3rd Total Land Preparation: 37.5037.50 5000sqm@Rs.25x.6m=Rs.75000x50he Soil Amendment: 5.253.501.7510.50 6T@Rs.3500 per ton x 50he Green Manure: 0.400.40 0.40 1.20 40kg@Rs20x50hex3yr Crop Production nil1.251.25 2.50 Rs. 2500 x 50he Capacity Building 2.821.881.88 6.58 70day x Rs.5000=Rs.3.5+Rs.1.68 Total Cost 45.977.035.28 58.28 Administrative Exp 4.600.700.53 5.83 Project Cost 50.57 7.73 5.81 64.11 Main & Sub-drainage cost not included in above estimation Dholera Soil Reclamation Dholera Soil Reclamation

25. 25 Project Cost 33.35 13.219.36 55.91 Project Economics ~ System 2:BBF Area : 50 ha Project year: 1st2nd3rd Total Rs. in Lacs Rs. in Lacs Rs. in Lacs Rs. in Lacs Land Preparation: 16.2516.25 10000sqm@Rs.2.5=Rs.25000x50he Soil Amendment: 10.50 7.003.5021.00 12T@Rs.3500 per ton x 50he Green Manure: 0.75 0.75 0.75 2.25 75kg@Rs20x50he x3 yr Crop Production nil 2.382.38 4.76 Rs. 4750 x 50he Capacity Building 2.82 1.881.88 6.58 70day x Rs.5000=Rs.3.5+Rs.1.68 Total Cost 30.3212.008.51 50.83 Administrative Exp 3.03 1.200.85 5.08 Project Cost 33.35 13.219.36 55.91 Main & Sub-drainage not included in above estimation Dholera Soil Reclamation Dholera Soil Reclamation

26. 26 Project Benefits ~ Saline Soil Reclamation Project Unit System 1: BBC ~ System 2: BBF Project Cost Rs. in Lacs64.11 55.91 Crop Cultivation Rs. InLacs/ 10 yrs 9.63 18.29 Interest Rs. in Lacs / 10 yrs 8.18 17.50 Total Cost 81.91 91.70 Employment Opportunity 37.50 3.75 Balance Cost Rs. in Lacs / 10 yrs 44.41 87.95 Revenue Generation Rs. in Lacs /10 yrs 126.60 253.20 Net Revenue Rs. in Lacs / 10 yrs 82.19165.25 Annualized ROI 18.50% 18.78% Revolving Fund Rs. in Lacs / 10 yrs 49.26 87.97 Income Distribution Rs. in Lacs /10 yrs 32.93 77.29 Dholera Soil Reclamation Dholera Soil Reclamation

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