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

Active Publication Date: 2015-09-09
QINGDAO YUANCE GRP CO LTD
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Problems solved by technology

[0003] The current method of biological improvement of saline-alkali land is mainly a single or compound saline-alkali land improvement technology, which has the following defects: (1) the existing biological improvement of saline-alkali land method is in use, and the improvement effect of soil salinity is poor; (2) the area of ​​saline-alkali land improvement Small; (3) The biological improvement adopted has low unit output and poor economic benefits

Method used

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  • Method for improving soil saline alkali

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Effect test

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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Abstract

The invention relates to a method for improving soil saline alkali, belongs to the technical field of soil adjustment methods and mainly solves the problems of poor soil saline alkali improvement effects, small improvement saline alkali soil areas and low unit yields in the prior art. The method comprises fifteen steps of land flattening, seedling bed arranging, land leveling, alkali washing, alkali pressing, seed selection, seed sowing and seedling raising, greenhouse building, ventilation and temperature management, seedling water management, seedling pest control, land beating leveling, seedling transplanting, tillering stage management and booting and earing period management. By the aid of the method, by means of autotetraploid rice planting, water management strengthening, organic fertilizer increasing, integrated control of plant diseases and insect pests and land management, the soil saline alkali is improved apparently, the saline-alkali soil is improved in large area, and the yield per unit is high.

Description

technical field [0001] The invention relates to a method for improving soil salinity and belongs to the technical field of soil adjustment methods. Background technique [0002] The fundamental reason for the formation of saline-alkali soil is poor moisture status, so in the early stage of improvement, the focus should be on improving the soil moisture status. Generally, it is carried out in several steps. First, drain and wash salt to reduce the salinity content of the soil; then plant salt-resistant plants to fertilize the soil; finally plant crops. The specific improvement measures are: drainage, irrigation and salt washing, silt improvement, rice planting, fertilizer improvement, land leveling and chemical improvement. [0003] The current method of biological improvement of saline-alkali land is mainly a single or compound saline-alkali land improvement technology, which has the following defects: (1) the existing biological improvement of saline-alkali land method is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00A01B79/02
Inventor 丁锦燕张书艮赵帅鹏刘佳音
Owner QINGDAO YUANCE GRP CO LTD
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