Strawberry Autumn Management

First, apply enough Autumn fertilizer. Shallow strawberry roots are sensitive to fertilizer reactions. Therefore, ammonium bicarbonate and ammonium sulfate fertilizers should not be applied, and urea and compound fertilizers should be used; 25 kg of compound fertilizer should be applied per acre after the harvest to promote flower bud differentiation. The wintering fertilizer can be applied at the end of the fall, and the fertilizer is mainly human feces and urine that has been fully decomposed to increase the ability of the plants to overwinter.

Second, outside the top dressing. Top dressing can increase the photosynthetic intensity of strawberry leaves, promote root development and increase fruit yield. Usually combined with spraying, can be sprayed with 0.3% ~ 0.5% urea, 0.3% ~ 0.5% of potassium dihydrogen phosphate, 0.03% of manganese sulfate, 0.01% ammonium molybdate, plant treasure and other organic nutrient solution.

Third, less irrigation prevention stains. In the fall, it is necessary to use less irrigation to prevent strawberry stems from growing vigorously and consume large amounts of nutrients and affect soil fertility. At the same time, attention should be paid to draining the gutters to reduce soil moisture and prevent waterlogging.

Fourth, earth cultivators. The occurrence of new roots of strawberry has the feature of moving up year by year. Therefore, after the strawberry grows for one year, it should pay attention to the basic soil, mainly before the occurrence of new roots, and the thickness of the soil is better to expose the seedlings. The cultivator can be combined with top-dressing and earth-cultivation, and the roots grow vigorously and the pre-growing cultivator can be properly deepened.

Fifth, control weeds. Weeding in the field can be carried out by comprehensive measures such as manual weeding, grass mulching, and crop rotation. In order to reduce the use of labor, herbicides such as 48% trifluralin, 40% simazine, or 10% chlorpyrifos are used as the main herbicides.

Six, prevention and treatment of pests. If there is more rain and more humidity in the field, the strawberries are prone to diseases. Mainly include gray mold, leaf spot, verticillium wilt, virus disease, bud blight, powdery mildew, etc. It can spray 200 times Bordeaux fluid or 50% carbendazim 600 times liquid or 65% zeocin zinc wettable powder. 500 times liquid prevention and control; virus disease is mainly caused by aphid-borne virus infection, can be used to kill aphids 1000 times 10% imidacloprid spray control; to tigers, earthworms, cockroaches and other insect pests can be used 1000 to 1300 times liquid phoxim water to kill Or use 2000 times solution of trichlorfon to kill.

Seven, covered straw. At the end of autumn, the old leaves of strawberry are well protected, which is conducive to the accumulation of nutrients and inflorescence differentiation. In general, after filling water once in mid-October, it will cover straw 30 to 50 centimeters in time in late October. When the average temperature in the second year is stable at about 10°C, the overwintering cover is removed and it is removed in late March. Do not break the strawberry flower buds during operation. Use bamboo rakes and other ridges along the strawberry to gently open the cover.

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