Strawberry field
The production of strawberries in the seedling nursery or transplanted into the field, weeds have been accompanied by growth. Because of the large amount of occurrence, the damage to strawberries is severe and often results in a 10%-15% loss of strawberry production. First, because of the large amount of strawberry nursery or Daejeon base fertilizer, irrigation is more frequent and the weeds grow. Second, because of the high density of strawberry plants, the low height of plants, the symbiosis between weeds and strawberries that contend for light, compete for fertilizer, and compete for water. Artificial leeches are more difficult to remove; third, there are many types of weeds; monocotyledonous weeds and broad-leaved weeds can breed, and the propagation speed is fast; and fourthly, weed breeding can also cause culprit damage.
At present, the work of strawberry seedlings has been carried out one after another. Starting from the nursery, we should start from the seedling stage and adopt comprehensive measures to prevent weeds and provide timely and robust strawberry seedlings. We must also not ignore the prevention and control of weeds after transplanting.
Agricultural measures lay the foundation for weeding. First, the nursery base of strawberries should be replaced every year, which can change weed structure and control weedy weeds. It can also reduce damage to pests. For example, if you grow tomatoes or eggplant in the field, you should not use them as seedbeds because they have the same The germs damage the seedlings; the second is the clear-cut tillage seedbed base, so as to make use of the sunburn to kill a part of the weeds; the third is to diligently plough the loose soil and combine the manual weeding to remove fresh and weedy weeds. Must not be ignored either. After the strawberries enter the harvest period, the weeds are also entering a period of prosperous growth and should be strengthened.
Chemical means to eradicate weeds of different ages.
The first is soil treatment except weeding before weeding. When the strawberry seedlings are transplanted from the nursery of the nursery to the false planting field, 40% trifluralin can be sprayed on the topsoil at 100-200 ml/mu, and then watered at 50-100 kg, and then the molars can be mixed with the soil. In order to prevent photolysis failure, it can eliminate a variety of monocotyledonous weeds and some broadleaf weeds. Second, 50% butachlor 100-125 ml, or 72% Dole EC 100-120 ml, 50 kg of water sprayed on the soil surface, can be better to eliminate buds before the weeds. Three can be used before the strawberry is transplanted in Datian with 50% large-benefit (wesikeridine) wettable powder 150-200 g, or 25% caoxagen EC-110-170 ml, or 24% Goil EC 36-72 ml , respectively, watering 50 kg evenly sprayed. Four can be before and after colonization, per acre with 65% herbicide sensitive wettable powder 330-400 grams, watered 50 kg spraying.
Second, seedlings are planted and sprayed with herbicides after colonization. One can use 10.8% of high-efficient gaisengeng EC to 20 ml, or 15% to steadily kill 70 ml of emulsifiable concentrate and spray 40-50 kg of water, which can eliminate the herbicide better. 3-5 leaf grass weeds. Two can be used 84% Xianzhi EC 100 ml per acre, watering 50 kg spraying, the control effect of annual monocotyledonous weeds and dicotyledonous weeds in more than 90%. Three can use 80% fentanide wettable powder, 200-300 grams per acre, dilute to 500 times diluted with liquid spraying between the rows. Four can be used 10.8% of high-efficient gaiseng can EC plus 50% butachlor 60-80 ml, watered 50-60 kg, after 10-15 days of seedling planting, spray in the field when the high humidity or drizzling, can be more than Monocotyledonous and broad-leaved weeds. The fifth is to use 50% large-benefit (wesolinamide) wettable powder 100-200 g per acre before flowering. When the soil is heavy, the dosage should be increased. After flowering, no more pesticide is applied.
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