Weeding, repairing borders. In October, the grass on the strawberry borders should be removed in time to avoid competing with strawberries for nutrients. Due to frequent weeding and watering, the strawberry borders are damaged, the borders become narrow, and the borders rise. At this time, the strawberry borders should be repaired.
Soil, fertilizer and water management. After controlling the water and slowing the seedlings, watering is based on the principle of "seeing dry and seeing wet". In autumn, there is a lot of rain and soil moisture, so special attention should be paid to water control and disease prevention. In the management, it is necessary to control water and keep a certain soil humidity to prevent the soil from being too dry and affecting the normal growth of strawberry seedlings. Watering should be carried out at around 8 in the morning.
Control fertilizer. In this period, strawberry enters the flower bud differentiation period. In order to prevent excessive growth and delay flower bud differentiation, it is necessary to appropriately control the use of nitrogen fertilizer, increase the use of phosphorus and potassium fertilizer, and promote flower bud differentiation. It is advisable to use foliar fertilizer and extra-root topdressing, and spray potassium dihydrogen phosphate on the leaves to supplement nutrients, increase resistance and promote growth. When the strawberry is about to be shed, the compound fertilizer is applied once in a furrow, with an amount of 10 kg to 20 kg.
Cultivating. The first cultivating depth is about 1 cm. During cultivating, only the topsoil hard crust part of the pine border is ploughed. In the middle of this month, the depth of cultivating should be deepened by about 2 cm. In actual operation, the principle of not harming the strawberry root system is the principle.
New seedling management. Remove old and diseased leaves. When new strawberry leaves grow out, remove dry and old leaves in time. At the same time, the creeping diameters should be removed in time to save nutrients and promote flower bud differentiation and plant growth. The old leaves that have withered should be removed from the sheath, and the leaves that have not withered should be cut off with scissors first, and then removed from the sheath when the petiole is yellow.
Fill the seedlings. Due to the heavy rain in autumn, many fields have been soaked by rain. If the medicament is not controlled in time, the strawberry seedlings will carry pathogens seriously, which will lead to the death of seedlings after planting. The places with lack of seedlings and dead seedlings should be supplemented in time to ensure that the seedlings are all Miao Zhuang.
Buckle the mulching film and greenhouse film in time. The best time for thermal insulation in greenhouses in the north is from early October to mid-to-late October, when the minimum outside temperature drops to 8 degrees Celsius to 10 degrees Celsius. After buckling the film, buckle the mulch to reduce the air humidity to keep the moisture in the soil and prevent the ground temperature from falling. Premature heat preservation is not conducive to the differentiation of flower buds. Once the plant enters the dormant period after heat preservation, it is difficult to release the dormancy, which will result in plant dwarfing.
Strengthen pest control. Due to the heavy rain and high humidity this autumn, where strawberry planting is late, fusarium wilt, powdery mildew and anthracnose are more serious, so pay attention to timely control.
After strawberry planting and slow seedlings, apply Nutrition Sterilization No. 1 and Quanbufei No. 1 and spray alternately every 5-7 days. During the spraying process, not only the strawberry seedlings and borders should be sprayed, but also the bare ground should be sprayed together to prevent the spread of germs. It can effectively prevent and control the occurrence of diseases until the strawberry is shed. Control aphids: Imidacloprid or Aphid Thistle No. 1, etc., spray once every 7 to 10 days. At the same time, weeds in and around the greenhouse should be removed in time, and the habitat of aphids should be eliminated.
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