Broccoli fertilization period and quantity
Fertilization: broccoli fertilizer, the whole growth period requires N10-12kg per mu, P13-15kg, K11-13kg, N too easy to cause quality decline.
Basal fertilizer: basal fertilizer is applied in deep trenches between rows, 15kg urea per mu, 50kg superphosphate, 20-25kg potassium sulfate or potassium chloride, 0.75-1kg borax, 2000kg decomposed compost, and superphosphate should be the same as organic fertilizer. Apply after mixing.
Dressing: For the first time, one week after seedling survival or 7-10 days after planting, when the plants resume their growth, apply 3 kg of urea per acre and 2.5 kg of potassium chloride. The second time, 20 days after seedling survival, between the rows Open shallow ditch burial facilities, application of three yuan compound fertilizer per acre 15-20kg. For the third time, 30 kg of compound fertilizer and 5 kg of potassium chloride per acre were applied before budding and combined with trace elements outside the root to promote quality and yield.
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