Because this heavy snowfall and snow cooling will help to slow down the growth and development of rapeseed, kill some of the wintering pests and germs, and reduce pest damage in spring. However, heavy snow causes low temperatures and freezing damage, which has a great impact on a few rapes that have already been ravaged.
Remove snow in time, reduce frost damage, remove snow from the leaves, prevent mechanical damage to rape and reduce frost damage.
Clearing the ditch and draining, to prevent the water from catching snow, to catch the fine weather, to clean the ditch and drain, to focus on cleaning up the “three ditch†in the field, and to break up the ditch, cultivate the roots of the rape, enhance the insulation performance, and prevent waterlogging.
Strengthen monitoring to prevent disease and early weeding. In rapeseed field, we can use high-efficient straw-covered grasses and fine-grassed weeds to spray water on the fields dominated by grasses and weeds, and high-tech sprays on broad-leafed cabbage-based hybrid rapeseed fields. Combine with control of grass weed herbicides to increase weeding. The second is to pay close attention to the occurrence of pests and diseases such as Sclerotinia sclerotiorum and aphids after the temperature rises after the snow.
It is forbidden to use fertilizers scientifically, and it is strictly forbidden to “apply fertilizers†to freeze the severed plots to chase the appropriate amount of available nitrogen fertilizers and phosphorus and potassium fertilizers and increase organic fertilizers. Insufficient bases, seedlings, seedlings, and weak seedlings should be quickly applied to farmyard fertilizers. Those who have already prepared a wax fertilizer should seize the snow and enjoy the weather quickly.
Removal of early sorghum, control of long for some early stalks of rapeseed, first, cultivating loose soil, cut off some fine roots, and second, timely removal of early sorghum, scorpion height above 15 cm to remove the main scorpion. The picking should be carried out on a sunny day after the temperature has risen, and urea should be applied between 2 and 3 kg per mu after picking. The third is spraying paclobutrazol. For plots with tendons and early tendencies, foliar spray 100PPM paclobutrazol solution to enhance its resistance to cold.
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