| As vegetable production scale, factory and professional development, vegetable increasingly serious phenomenon of continuous cropping obstacle, become the bottleneck of some parts, but also seriously restricts the sustainable development of vegetable production. This test in view of the situation of soil borne disease harm more and more heavy, USES two kinds of different soil conditioners:YunDaZhongTian and silicon fertilizer. Studied the two soil conditioner adjustment ability of different fixed number of year of the continuous cropping soil as well as to the squash, cucumbers and tomato growth and development of three kinds of vegetables, in order to soil conditioner for soil borne disease resistance mechanism, seedling cultivation and application to provide scientific theory basis. The experiment based on different fixed number of year of the continuous cropping of sunlight greenhouse squash, cucumbers and tomatoes applying silicon fertilizer and soil disinfectant two soil conditioner, the determination of soil index and a continuous cropping of vegetable production and nutrition index. The experimental results showed that:1 To squash, compared with the soil not applying soil conditioner, application of soil conditioner, weakened the soil microbial activity in soil samples, the soil enzyme activity increased.2 Application of soil conditioner in different extent, improved the quality of squash the fruit, including 1 year,2 years,4 years,19 years the quality of the use of disinfectants is significantly higher than applying silicon fertilizer and untreated soil. After the application of soil conditioner squash sugar, protein, Vc content and water content are the highest for 19 years. Among them,19 years in soil after application of disinfectant compared with CK. the sugar content increased by 0.83%, protein content increased by 1.1 mg /100 g, Vc content increased by 2.2 mg/100 g. water content increased by 2.6%.3 For cucumber. After applying soil conditioner YunDaZhongTian. the activity of urease along with the extension length of continuous cropping cucumber and showed a trend of decline after rising first, basic all is on the decline, the activity of sucrase phosphatase activity have been rising after falling to rise again. Cucumber protein content, soluble solids, water content, Vc content decreased with increasing length of continuous cropping, through the YunDaZhongTian treatment processing, soil urease, sucrase, phosphatase, cucumber soluble solids, protein content, moisture content, Vc content than ck increased.4 After the application of YunDaZhongTian transit soil conditioner, different length of continuous cropping tomato in the soil, soil enzyme activity showed different degrees of increase. And application of soil conditioner YunDaZhongTian, tomato yield and quality were greatly improved. |
