How to prevent rape
2024-12-01 08:01:58
Rapeseed is a winter crop, but if the temperature is too low or there is a phenomenon of dry freezing, it will also cause damage to rape and reduce the biomass of rapeseed. Before and after the coldest weather occurred in January, the following antifreeze measures can be taken:
Before the soil is frozen, the soil is combined with cultivator and earthworms are planted. Earthing is 7 to 10 cm thick. Cultivating soil can increase the temperature of the soil and directly protect the roots of rapeseed. It can also facilitate root growth and prevent rooting. In particular, tall seedlings, after cultivating earthworms, can shorten the root neck, which is conducive to keeping warm.
Covering a layer of thatch between the rapeseeds, straw, straw, etc., or 2000 to 3,000 kilograms of pig manure, can increase the soil temperature 2 °C ~ 3 °C, both cold and warm, but also provide nutrients after the spring rape. When the temperature drops to 0°C, a layer of hull ash, grass ash, and ash can also be sprinkled on the rape leaf to prevent the leaves from freezing.
Fertilization generally Mushi ash gray 400 to 500 kg, or more than 3,000 kilograms of soil miscellaneous fertilizer, and then with calcium sulfate 10 to 15 kg, plus potassium chloride 5 to 8 kg, can significantly improve the ability of cold rape.
Before irrigating or freezing cold, irrigation of rapeseed fields in time can avoid a significant drop in ground temperature and mitigate the degree of freezing damage, especially to prevent dry freezing. Irrigation should be filled with water, with the irrigation and row, to keep the soil moist.
After picking the early rapeseed, it consumes a lot of nutrients, the concentration of cell liquid drops, and the cold resistance weakens. Therefore, timely picking can reduce the degree of frost damage. The picking and picking will be conducted at noon on sunny days. After the picking, the amount of plant ash and available nitrogen fertilizer will be used to accelerate the growth of rape and prevent freezing damage.
The remedial measures after freezing include spreading fire ash or ash after thawing in rapeseed fields, spraying water on the leaves in a timely manner to prevent seedlings from standing in water, and rape rooting in a timely manner, 7 to 10 centimeters thick. Prevent the cutting off of dead seedlings; promptly remove the broken buds and leaves that are severely affected by freezing; promptly apply the available fertilizer after thawing, and restore the growth of rapeseed as soon as possible to reduce losses.
Before the soil is frozen, the soil is combined with cultivator and earthworms are planted. Earthing is 7 to 10 cm thick. Cultivating soil can increase the temperature of the soil and directly protect the roots of rapeseed. It can also facilitate root growth and prevent rooting. In particular, tall seedlings, after cultivating earthworms, can shorten the root neck, which is conducive to keeping warm.
Covering a layer of thatch between the rapeseeds, straw, straw, etc., or 2000 to 3,000 kilograms of pig manure, can increase the soil temperature 2 °C ~ 3 °C, both cold and warm, but also provide nutrients after the spring rape. When the temperature drops to 0°C, a layer of hull ash, grass ash, and ash can also be sprinkled on the rape leaf to prevent the leaves from freezing.
Fertilization generally Mushi ash gray 400 to 500 kg, or more than 3,000 kilograms of soil miscellaneous fertilizer, and then with calcium sulfate 10 to 15 kg, plus potassium chloride 5 to 8 kg, can significantly improve the ability of cold rape.
Before irrigating or freezing cold, irrigation of rapeseed fields in time can avoid a significant drop in ground temperature and mitigate the degree of freezing damage, especially to prevent dry freezing. Irrigation should be filled with water, with the irrigation and row, to keep the soil moist.
After picking the early rapeseed, it consumes a lot of nutrients, the concentration of cell liquid drops, and the cold resistance weakens. Therefore, timely picking can reduce the degree of frost damage. The picking and picking will be conducted at noon on sunny days. After the picking, the amount of plant ash and available nitrogen fertilizer will be used to accelerate the growth of rape and prevent freezing damage.
The remedial measures after freezing include spreading fire ash or ash after thawing in rapeseed fields, spraying water on the leaves in a timely manner to prevent seedlings from standing in water, and rape rooting in a timely manner, 7 to 10 centimeters thick. Prevent the cutting off of dead seedlings; promptly remove the broken buds and leaves that are severely affected by freezing; promptly apply the available fertilizer after thawing, and restore the growth of rapeseed as soon as possible to reduce losses.
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