Green Prevention And Control Measures Of Strawberry Diseases And Pests In Tianjin Greenhouse And Techniques Integration In Planting High Quality And High Production Strawberry In Saline-alkali Soil

Strawberry is a perennial herb of Rosaceae.It's known as the "Queen of fruits" because of its delicious.With the development of urban modern agriculture in Tianjin and the improvement of people's living standard,it's more and more higher in strawberry demands and the quality.But the soil is saline in Tianjin,which is not suitable for planting strawberry.Therefore,the planting area is not large enough to meeting the market demands.And there are many pesticide residues in strawberries on the Tianjin market which come from other places.Consequently,it's necessary to sum up a planting technique in producing green and high-yield strawberry in Tianjin.The research object is the greenhouse which growing strawberry of Lizigu Farm in Tianjin Baodi.The test time is from September 2015 to March 2017.We selected 16 standard energy-saving greenhouse.Every one is75 meters long,8 meters wide,and the actual usage area is 525 square meters.The main diseases of Strawberry planting in the experiment include red stele root rot,gray mold and powdery mildew.The main pests in the experiment include mites and aphids.Combined with biological control,agricultural control and physical control,we set up many comparative experiments to summarize the green prevention and control measures of strawberry in Tianjin greenhouse and planting high quality and high production strawberry in saline-alkali soil.The main results are as follows.(1)We can take the strawberry diseases and insect under-control in all production process.And the product is more suitable for direct eating.The main measures are as follows.Physical control measures include cleaning garden and disinfecting soil with high temperature.Biological control measures include applying beneficial microbial to sterilized soil,seedling garlic in the absence and death places and preventing gray mold,powdery mildew,mites and aphids.Agricultural control measures include adjusting the humidity to control the gray mold and mites.(2)We can solve the problems in planting strawberry in saline soil with a low survival rate and an iron chlorosis.And we can plant a high quality strawberry in saline soil.The main measures are as follows.To raising the survival rate,we can Heel in the strawberry before panting.Applying ferrisulfas and citric acid regularly.The amount is 1.5-2kg ferrisulfas per 667 square meters and 30-50 g citric acid per667 square meters.The specific amount is changing according to the plant growth,leaf color and fertilization time.In order to adapt to the picking form,the planting number is 8000 per 667 square meters,the output is 2000 kg per 667 square meters.