Is it early to raise rape seedlings in mid-September?
The best seedling raising time of rape is from late September to early October of 10. The suitable temperature and light conditions during this period can ensure the quality of rape seedlings. Rapeseed is a long-day plant, which needs sufficient light to promote its growth. Short sunshine time in mid-September is not conducive to rape seed germination and seedling growth. Early seedling raising is prone to problems such as poor seedling raising and prolonged seedling raising period.
Judging from the climatic conditions, the temperature in the northern region gradually decreased in mid-September, and the sunshine time was also decreasing, which was unfavorable for rapeseed seedling raising. Rapeseed likes warm and humid climate, and needs sufficient light and suitable temperature during seedling raising. In mid-September, the conditions may be cold and early, which is not suitable for rape seedling raising.
Seedling raising techniques of rape
When sowing and raising seedlings of rape, the seedbed should be prepared in advance, and the plots with fertile soil, deep soil layer and convenient irrigation and drainage should be selected, and the soil should be slightly acidic. Prepare the soil before sowing, the soil should be fine and flat, and dig the drainage ditch according to the size of the plot. Apply base fertilizer to the soil, mainly organic fertilizer, add appropriate amount of phosphorus and potassium fertilizer, or apply compound fertilizer to make the fertilizer and soil fully mixed.
According to the local climate and your own preferences, you can choose rape varieties, prepare seeds in advance, and do a good job of accelerating germination, thus improving the germination rate of seeds. When rape grows to 15-20cm, intertillage weeding can be used to remove weeds and avoid competing for nutrients. According to the wet and dry condition of the soil and considering the water demand of the seedlings, water can be watered regularly.