Check the seedlings to make up for lack of when the survival of rapeseed transplants should be timely check seedlings to make up for lack of lack of nests to ensure that Miao Qi, Miao whole, Miao Zhuang.
Timely application of early fertilizer, industrious Miaofei. It is necessary to make full use of the effective growth period before winter and use topdressing as the main means to promote the escalation of seedlings potential. In order to prevent the shortage of nutrients, nitrogen is the main fertilizer that can be applied quickly. For phosphorus- and potassium-deficient soils, it is necessary to supplement phosphorus and supplement potassium. Generally after transplanting survival, the top seedlings are applied in time to promote the growth of seedlings before winter.
Re-application of wax fertilizer before winter or early winter, in the rapeseed between the addition of fertilizer, circulatory fertilizer, human waste, turfgrass and other fertilizers, can increase the ground temperature 2 °C ~ 3 °C, play a cold and warm effect, but also from the To the effect of winter fertilizer spring. Therefore, apply wax fertilizer. The application time should be controlled before the large freeze, generally better during the winter solstice to Xiaohan. Wafer fertilizer should be based on slow-lasting manure, mud, and cake fertilizers, combined with a certain amount of plant ash and superphosphate.
In the cultivating soil for rice cultivars and no-tillage transplanted rapeseed, due to poor quality of soil preparation or no ploughing, the soil is relatively compacted and the weeds are heavy. Therefore, seedlings must be intensively cultivated, usually 2 or 3 times, to eliminate weeds. , Loosing the soil, reducing the humidity in the field, increasing the soil temperature, preventing soil compaction, and promoting root growth. The cultivator should be conducted according to the principle of “deep and shallow roots†and pay attention to soil and earthworms in order to enhance the ability of rape to resist cold and fall, and to promote the occurrence of rhizomes. In addition, high standards must be used to open up the "three channels" to prevent waterlogging and prevent drought in a timely manner.
Cleverly preventing early-season hair growth cultivation, due to earlier sowing, growth accelerated, when the winter encounters a higher temperature, prone to early sickness and early flowering phenomenon, so that the cold resistance of rape can be reduced, susceptible to freeze damage caused by reduced production. It is important to strengthen field management on the basis of nurturing strong seedlings and early plantings. To pick up the pods early in the early morning and early rape, picking the pods can solve the problem of early rape and early flowering of rape and improve the ability of cold resistance.
The diseases and pests of rapeseed before pest control and wintering are mainly “two insects and one disease†namely: aphids, cabbage caterpillars, and virus diseases. Control methods are: Locust: Acres with 25% Acetate 2 ~ 4 grams, or 25% fast killing 25 ml, or 10% Dagong Chen 10 ~ 25 grams, or 24% anti-pyrosis 20 grams of water spray. Cabbage worms: Mu 1.5 g vegetable dan 25 g, or 4.5% guarantor 35 to 50 g of water spray. Virus disease: Acres with virus A100 grams of water evenly sprayed 40 kg, severe disease plots sprayed again every seven days, once in a row, the virus disease has a better control effect.
NANJING ZELANG MEDICAL TECHONOLOGY CO., LTD , https://www.hawfitness.com