Method of modifying Xinjiang saline-alkaline soil
A saline-alkali land and soil improvement technology, applied in the field of soil improvement, can solve the problems of large investment, not a long-term solution, and long planting process, so as to achieve the effects of increasing yield, increasing improvement speed, and maintaining flexibility
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[0028] Example 1
[0029] A method for improving saline-alkali land in Xinjiang, comprising the following steps:
[0030] S1. After adding 5 times the weight of water to soak the cinder for 7 days, sieve the cinder: the particle size ≥ 10mm is large particle cinder, 10mm < particle size ≥ 4mm is medium particle cinder, 4mm < particle size ≥ 2mm is small particle cinder , the rest is fly ash;
[0031] S2. Deeply turn the soil to 27cm, and lay small particles of cinder on the surface of the soil that has not been turned up, and the thickness of the laying is 2.5cm;
[0032] S3. Mix the turned up soil evenly with desulfurization gypsum, biochar and water-retaining agent, and CaSO in the desulfurization gypsum 4 ·2H 2 The weight content of O>82%, the dosage is 1800kg / mu, the dosage of biochar is 13kg / mu, the dosage of water retention agent is 6kg / mu, and the soil must be improved;
[0033] S4. Take 60% of the volume of the improved soil and mix it with medium-grained cinder an...
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[0042] Example 2
[0043] A method for improving saline-alkali land in Xinjiang, comprising the following steps:
[0044] S1. After soaking the cinder in water with 3 times its weight for 1 day, sieve the cinder: the particle size ≥ 10mm is large particle cinder, 10mm < particle size ≥ 4mm is medium particle cinder, 4mm < particle size ≥ 2mm is small particle cinder , the rest is fly ash;
[0045] S2. Deeply dig the soil to 40cm, and lay small particles of cinder on the surface of the soil that has not been turned up, and the thickness of the laying is 3cm;
[0046] S3. Mix the turned up soil evenly with desulfurization gypsum, biochar and water-retaining agent, and CaSO in the desulfurization gypsum 4 ·2H 2 The weight content of O>82%, the dosage is 1300kg / mu, the dosage of biochar is 15kg / mu, the dosage of water retention agent is 8kg / mu, and the soil must be improved;
[0047] S4. Take 50% of the volume of the improved soil and mix it with medium-grained cinder and fly ...
Example Embodiment
[0055] Example 3
[0056] A method for improving saline-alkali land in Xinjiang, comprising the following steps:
[0057] S1. Add 5 times the weight of water to soak the cinder for 10 days, and then sieve the cinder: the particle size ≥ 10mm is large particle cinder, 10mm < particle size ≥ 4mm is medium particle cinder, 4mm < particle size ≥ 2mm is small particle cinder , the rest is fly ash;
[0058] S2. Deeply dig the soil to 30cm, and lay small particles of cinder on the surface of the soil that has not been turned up, and the thickness of the laying is 1.5cm;
[0059] S3. Mix the turned up soil evenly with desulfurization gypsum, biochar and water-retaining agent, and CaSO in the desulfurization gypsum 4 ·2H 2 The weight content of O>82%, the dosage is 1900kg / mu, the dosage of biochar is 8kg / mu, the dosage of water retention agent is 5kg / mu, and the soil must be improved;
[0060] S4. Take 70% of the volume of the improved soil and mix it with medium-grained cinder and...
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