Method for improving soil to plant blueberries by using saponin wastewater

Abstract

The invention discloses a method for improving soil to plant blueberries by using saponin wastewater. The method comprises four steps of fetching the saponin wastewater and irrigation water, improving the soil, performing field planting and performing regular watering. By the adoption of the method for improving the soil to plant the blueberries by using the saponin wastewater, the cost input is mainly the transportation cost of the saponin wastewater, 0.01 m<3>-0.5 m<3> of the saponin wastewater is needed by per mu of land, one truck transports 8 m<3> wastewater at a time, the transportation expense is 100 yuan at a time, and then people need to input 0.125-6.25 yuan averagely per mu of land. Compared with a traditional improved method in which the soil improvement cost is 10,000-50,000 yuan per mu of land, the cost input in the method for improving the soil to plant the blueberries by using the saponin wastewater can be regarded as zero-cost input basically, and the economic benefits can be directly increased by 10,000-50,000 yuan per mu of land. Moreover, in the method, the field soil is improved in an irrigated mode, compared with a traditional mode of shedding and mixing sulphur powder, operation is more convenient, and the improvement cycle is substantially shortened. The required improvement time in the traditional improvement method is 6-12 months, while the required improvement time in the method is only 7 days. The method is easy and convenient to implement, and the management of a blueberry garden is facilitated.

Description

technical field [0001] The invention belongs to the technical field of blueberry planting methods, and in particular relates to a method for using saponin wastewater to improve soil and plant blueberries. Background technique [0002] Blueberry is a fruit with very high nutritional value and economic value. It is rich in nutrients such as vitamins, proteins and minerals. Among them, the unique and precious anthocyanin pigment in blueberry is more than 20 times that of other fruits. The reputation of the king of green vegetables and fruits. However, blueberry growth and development conditions are harsh, and the development area is limited. There are two biggest constraints. The first is the requirement of acidic soil conditions, that is, pH 4.2 to 5.5; the second is the climatic conditions, that is, the annual rainfall is above 800mm and the low temperature is below 7.2°C and the low temperature is above 500h. [0003] There are very few areas suitable for blueberry planti...

AI Technical Summary

Problems solved by technology

However, the environmental pollution caused by saponin wastewater is also a bottleneck problem in saponin industrial production.

Saponin wastewater has the characteristics of large chroma, high concentration of organic pollutants, high acidity, and high temperature. It is difficult to treat and causes great pollution to the surrounding water and soil.

[0005] So far, although there are many reports on saponin wastewater treatment technology, the commonly used methods include physical and chemical pretreatment technology and biochemistry, neutralization-anaerobic biological treatment (UASB)-aerobic biological treatment (SBR), two-phase anaerobic + Aerobic combined process, absorption biodegradation method (AB method), sequencing batch activated sludge method (SBR), etc., but the development and utilization of saponin wastewater as a resource has not been reported