Rape pick tips
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Adjust the proportion of fertilizer on the application of fertilizers, take the "bottom foot, stable seedlings, attack disk, after the make up" principle. The “bottom foot†is the base fertilizer which accounts for 70% of the total amount of fertilizer, mainly organic fertilizer and phosphorus and potassium fertilizers, supplemented by nitrogen fertilizer, organic fertilizer 1500 kg per mu, potassium oxide 5.5 kg, phosphorus pentoxide 4-5 kg, nitrogen 2-3 kg. “Stable seedling†fertilizer accounts for 2%, 0.15 kg of pure nitrogen, 0.1 kg of phosphorus pentoxide, and 0.19 kg of potassium oxide. “Composite fertilizer†accounts for 28%, 1-1.5 kg of pure nitrogen, 14 kg of phosphorus pentoxide, and 2-7 kg of potassium oxide. After the “supplementâ€, 0.1% boron fertilizer solution is added at the beginning of Yanghua and the late Yanghua period, 0.1% potassium dihydrogen phosphate (above 96%) solution is used, and 50-60 kg per mu is appropriate. Pick up promptly When the rape grows to 30-40 centimeters, start picking. The general picking tip length is about 10 cm, and the length of the picking tip is slightly longer, while the opposite is short. If there are early flowers can also take the same method, generally early morning flower tip length of 20-25 cm, after years of early flower tip length of 8-10 cm is appropriate, and pay attention to the pest control in various periods.