Method for improving soil saline alkali
A technology for improving soil and salinity, which is applied in the field of improving soil salinity, which can solve the problems of poor soil salinity improvement, small area of improved saline-alkali land, and low unit yield, so as to improve the ability to resist natural disasters and achieve independent drainage and irrigation. capacity, and the effect of improving yield and quality
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Embodiment 1
[0040] Step 1. Land leveling: the plots are divided into numbers, each area is 3-4 mu, and the depth is plowed by 30cm, and the field is fertilized at the same time;
[0041] Step 2, seedling bed arrangement: the depth of the seedling bed ditch is 30cm, and the ridge width is 120cm;
[0042] Step 3. Land leveling: Plowing depth is 12-15cm, raking and trimming, and the height difference of a single piece of land does not exceed 5cm;
[0043] Step 4. Soda washing: Pour water into the ground at a depth of 5-10cm. After soaking in the field for 2 days, use a no-till machine to stir to fully dissolve the salt in the soil, and then drain the water so that the salt in the soil can be discharged into the alkali ditch with the water. , so repeat 2-3 times;
[0044] Step 5. Alkaline pressure: After the alkali washing is completed, the plot is immediately filled with water, and the depth of the water layer is 10-15cm, and the large water pressure is carried out. After that, the water ca...
Embodiment 2
[0065] Add organic fertilizer, chicken manure, 3-5 tons / mu. Organic fertilizers contain a variety of nutritional elements. In addition to nitrogen, phosphorus, and potassium macronutrients, they also contain secondary elements required by many crops, which can provide comprehensive nutrition for rice, especially trace element nutrition. At the same time, it can improve the quality and palatability of rice. Organic fertilizers contain organic matter and humus, which can improve soil structure, coordinate soil water, fertilizer, air, and heat, and enhance soil ventilation and water permeability, as well as fertilizer retention, water retention, fertilizer supply, and water supply capabilities. Organic fertilizers contain auxin, vitamins, humic acid and amino acid organic substances, which can play a special role in the nutritional physiological and biochemical processes of rice, and can also provide carbon dioxide gas for photosynthesis of rice. The organic fertilizer has a lar...
Embodiment 3
[0067] Applying saline-alkali improver and salinity-alkali improved water agent on the seedling bed, adjusting the carbon-nitrogen ratio to change the soil aggregate structure, adjusting the ratio of sodium ions and calcium ions to reduce the activity of sodium ions and salt damage; using organic acids from plant secretions to reduce the PH value; Adsorb salt ions, precipitate; increase soil permeability, oxygen and biological activity. Salt-alkali improvement granules increase the overall nutrition of crops (all trace elements); promote the absorption of plant roots; balance the effect of nitrogen, phosphorus and potassium, reduce fertilizer waste, reduce soil pH, lower PH value, and absorb sodium ions.
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