Straw double-layer salt control and surface ice plant desalination saline-alkali land composite improvement method
A technology for saline-alkali land and severe saline-alkali land, which is applied in the fields of land preparation methods, applications, agricultural machinery and machinery, etc., can solve the problems of no major breakthrough in the improvement of moderately-severe saline-alkali land, poor economic benefits, and long recovery period, and achieve significant economic and social benefits. , easy to implement and effective
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[0034] Example 1
[0035] A composite improvement method for salt-alkali soil with double-layered straw and iced vegetable desalination on the surface is carried out according to the following steps:
[0036] (1) Ditching: the ditch depth is 45cm, the width is 53cm, and the distance between ditch and ditch is 13cm;
[0037] (2) Laying straw at the bottom of the ditch: Laying 15-20cm of crushed corn stalks at the bottom of the ditch, with a thickness of 6cm after compaction;
[0038] (3) Cover soil: Backfill the ditching soil on the straw, compact it appropriately, and restore it to its original state;
[0039] (4) Fertilization: the amount of organic fertilizer for mild saline-alkali land is 600 kg / mu, compound fertilizer is 25 kg / mu; the amount of organic fertilizer for moderate saline-alkali land is 800 kg / mu, compound fertilizer is 25 kg / mu; the amount of organic fertilizer for severe saline-alkali land is 1000 kg / mu , Compound fertilizer 25 kg / mu;
[0040] The organic fertilizer is ...
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[0049] Example 2
[0050] A composite improvement method for salt-alkali soil with double-layered straw and iced vegetable desalination on the surface is carried out according to the following steps:
[0051] (1) Ditching: the ditch depth is 40cm, the width is 55cm, and the distance between the ditch is 15cm;
[0052] (2) Laying straw at the bottom of the ditch: Lay sorghum straw with a length of 15-20cm at the bottom of the ditch, and the thickness after compaction is 5-8cm;
[0053] (3) Cover soil: Backfill the ditching soil on the straw, compact it appropriately, and restore it to its original state;
[0054] (4) Fertilization: the amount of organic fertilizer for mild saline-alkali land is 600 kg / mu, compound fertilizer is 25 kg / mu; the amount of organic fertilizer for moderate saline-alkali land is 800 kg / mu, compound fertilizer is 25 kg / mu; the amount of organic fertilizer for severe saline-alkali land is 1000 kg / mu , Compound fertilizer 25 kg / mu;
[0055] The organic fertilizer i...
Example Embodiment
[0063] Example 3
[0064] A composite improvement method for salt-alkali soil with double-layered straw and iced vegetable desalination on the surface is carried out according to the following steps:
[0065] (1) Ditching: the ditch depth is 43cm, the width is 51cm, and the distance between the ditch and the ditch is 11cm;
[0066] (2) Laying straws at the bottom of the ditch: laying corn stalks and rice stalks with a length of 15-20 cm at the bottom of the ditch, with a thickness of 5-8 cm after compaction;
[0067] (3) Cover soil: Backfill the ditching soil on the straw, compact it appropriately, and restore it to its original state;
[0068] (4) Fertilization: the amount of organic fertilizer for mild saline-alkali land is 600 kg / mu, compound fertilizer is 25 kg / mu; the amount of organic fertilizer for moderate saline-alkali land is 800 kg / mu, compound fertilizer is 25 kg / mu; the amount of organic fertilizer for severe saline-alkali land is 1000 kg / mu , Compound fertilizer 25 kg / mu;...
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