Technical model of salt suppression of green manure cultivation in Pingyao County, Jinzhong City, Shanxi Province

The annual precipitation in Pingyao County is less and evaporation is large, which results in faster evaporation rate of water in the soil, high pH value and increased salt content. Coupled with poor drainage, lack of effective leaching and strong evaporation, resulting in a large amount of salt and alkali accumulation in the closed flow system.

Technical Model

A management model of cultivating green manure, improving soil, enhancing cultivated land quality and ensuring food production security has been explored and summarized.

Technology Principle

Planting and turning over green manure on saline-alkali soil can increase soil biocover, reduce surface evaporation and inhibit salinity rise. Adding organic fertilizer can improve soil structure, increase soil organic matter and mineral nutrient content, and improve soil fertility.

Key Technical Points

1. The straw was crushed and returned to the field

2. Mechanical sowing rapeseed

3. Rape green manure turned into the field

Technical Effect

The average mu yield increased about 20 kilograms, per mu can increase the income of 48 yuan. The salt content of green manure decreased by 0.02%, which thickened soil tillage layer, increased soil organic matter, improved soil aggregate structure and soil permeability, effectively reduced soil bulk density, and improved ventilation and drought resistance and moisture retention ability.

Related References:

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

http://m.ziyol.com/2022-09/15/content_78420529.shtml

2. Technical Model of Salinized Soil Improvement in Shandong Province

http://m.ziyol.com/2022-09/15/content_78420702.shtml

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

http://m.ziyol.com/2022-09/15/content_78420651.shtml

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

http://m.ziyol.com/2022-09/15/content_78420789.shtml

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

http://m.ziyol.com/2022-09/15/content_78420736.shtml