Saline-alkali soil deep-improving method by chemical-biological technology
A biotechnology and saline-alkali land technology, applied in the field of deep improvement, can solve problems such as saline-alkali backlash, seawater intrusion, and unsatisfactory effects, and achieve the effects of reducing salinity, preventing underground salt return, and good use value
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Embodiment 1
[0057] A method for deeply improving saline-alkali ground with chemical-biological technology, comprising the following steps:
[0058] S1. Using chemical measures to improve the chemical composition of saline-alkali land
[0059] First, add humic acid fertilizers to the saline-alkali soil in an amount of 200kg / mu. The humic acid fertilizers include the following components by weight: 15 parts by weight of biochemical fulvic acid, 6 parts by weight of water-soluble silicon fertilizer, furfural residue 20 parts by weight, 40 parts by weight of straw;
[0060] Then, add chemical acid fertilizer in saline-alkali soil, the selected calcium fertilizer of described chemical acid fertilizer comprises calcium superphosphate and calcium nitrate fertilizer, reduces soil pH value, simultaneously, applies physiological acid fertilizer, comprises ammonium sulfate and nitrate phosphate fertilizer;
[0061] Finally, add mineral chemical fertilizers to the saline-alkali soil in an amount of ...
Embodiment 2
[0078] A method for deeply improving saline-alkali ground with chemical-biological technology, comprising the following steps:
[0079] S1. Using chemical measures to improve the chemical composition of saline-alkali land
[0080] First, add humic acid fertilizers to the saline-alkali land in an amount of 220kg / mu. The humic acid fertilizers include the following components by weight: 20 parts by weight of biochemical fulvic acid, 8 parts by weight of water-soluble silicon fertilizer, furfural residue 25 parts by weight, 50 parts by weight of straw;
[0081] Then, add chemical acid fertilizer in saline-alkali soil, the selected calcium fertilizer of described chemical acid fertilizer comprises calcium superphosphate and calcium nitrate fertilizer, reduces soil pH value, simultaneously, applies physiological acid fertilizer, comprises ammonium sulfate and nitrate phosphate fertilizer;
[0082] Finally, add mineral chemical fertilizer to the saline-alkali land, the addition amo...
Embodiment 3
[0103] A method for deeply improving saline-alkali ground with chemical-biological technology, comprising the following steps:
[0104] S1. Using chemical measures to improve the chemical composition of saline-alkali land
[0105] First, add humic acid fertilizers to the saline-alkali land, the addition amount is 240kg / mu, and the humic acid fertilizers include the following components by weight: 25 parts by weight of biochemical fulvic acid, 10 parts by weight of water-soluble silicon fertilizer, furfural slag 30 parts by weight, 60 parts by weight of straw;
[0106] Then, add chemical acid fertilizer in saline-alkali soil, the selected calcium fertilizer of described chemical acid fertilizer comprises calcium superphosphate and calcium nitrate fertilizer, reduces soil pH value, simultaneously, applies physiological acid fertilizer, comprises ammonium sulfate and nitrate phosphate fertilizer;
[0107] Finally, add mineral chemical fertilizer to the saline-alkali land, the ad...
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