â‘ Variety selection: Spring cultivation should choose varieties with strong winter characteristics. Fine varieties such as Shanghai Green, February Man, March Man, Winter Evergreen, Special Dwarf Green, and Dwarf Jiqing.
â‘¡Site preparation and fertilization: Since the growth period of small rapeseed is relatively short, 1000kg of decomposed human excrement per mu is applied as base fertilizer one week before the cultivated land, and then the border surface is finely raked and leveled.
â‘¢Sowing: Sowing in time on the basis of a good ground, sowing evenly, shallowly rake the surface after sowing, and then steadfastly or pat. Water should be timely based on soil moisture.
â‘£Field management: Small rapeseed is generally topdressed 2-3 times, and topdressing urea is about 5kg per mu each time.
⑤Harvesting: Spring greenhouse planting is generally harvested 50-60 days after sowing, with a yield of about 1000 kg per mu.
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