Technical Model of Comprehensive Management of Saline - alkali Land in Ningxia

Saline-alkali land is the most typical type of cultivated land degradation in Ningxia, which restricts the agricultural development of Ningxia. The soluble salt content in the soil exceeds the normal level of cultivated soil, resulting in the reduction of soil productivity and degradation of cultivated land.

Technical Model

Comprehensive consideration of ningxia is mainly salty soil soluble salt such as sodium, potassium, calcium, magnesium sulfate, chloride, carbonate and bicarbonate, based on the engineering measure, agricultural, chemical and biological measures such as scientific assembly, arrangement form contains solar dark tube drainage, laser level ground, deep loosening the commune, straw returned, organic manure and other technical measures of 5 kinds of patterns.

Technology Principle

To reduce soil salt content, increase soil organic matter and improve the quality of cultivated land, engineering, agricultural, chemical and biological measures are taken to comprehensively control and scientifically monitor saline-alkali land.

Key Technical Points

1. Strengthen the drainage

2. Straw returned

3. Adding organic fertilizer

4. Applying soil amendments or gypsum appropriately

5. Deep scarification and deep ploughing

Technical Effect

The results of typical cases showed that the soil saline-alkali level in mild, moderate and severe saline-alkali land was significantly reduced by the implementation of underground drainage, gully management, straw returning to the field and adding organic fertilizer.

Related References:

1. Technical Model of Moderate Salinized Cultivated Land Improvement in Ordos, Inner Mongolia

http://www.wfpchinacoe.net/2022-09/15/content_78420529.shtml

2. Technical Model of Salinized Soil Improvement in Shandong Province

http://www.wfpchinacoe.net/2022-09/15/content_78420702.shtml

3. Technical Model of Salt Suppression of Green Manure Cultivation in Pingyao County, Jinzhong City, Shanxi Province

http://www.wfpchinacoe.net/2022-09/15/content_78420651.shtml

4. Mild Saline-alkali Land Management Model in Xinrong District, Datong City, Shanxi Province

http://www.wfpchinacoe.net/2022-09/15/content_78420619.shtml

5. Technical Model of Comprehensive Management of Saline-alkali Land in Songnen Plain

http://www.wfpchinacoe.net/2022-09/15/content_78420789.shtml