Fertilization Techniques and Facility Key Points for Autumn Cucumber Planting
Cucumber is a high-yielding vegetable with a long fruiting period, and it is also a shallow-rooted crop that needs long-term nutrition throughout its growing period. Topdressing should be applied in stages in a timely manner. For cucumbers, the principle of "frequent light watering and frequent light fertilizing" should be followed. Before cucumber planting, apply 2000 kg of high-quality organic fertilizer and 30 kg of phosphate fertilizer per mu as base fertilizer. Cucumber...
1. Seedbed fertilizer: Apply more decomposed organic fertilizer and supplement phosphate fertilizer. For every 10 sq m of seedbed, apply 60-100 kg of decomposed organic fertilizer, 0.5-1 kg of calcium magnesium phosphate fertilizer, and 0.5 kg of potassium sulfate. According to seedling growth, spray 0.05%-0.1% urea solution 1-2 times.2. Base fertilizer: Apply 3-4 cubic meters of high-quality organic fertilizer per mu.
3. Yield level 14000-16000 kg/mu: nitrogen fertilizer (N) 45-50 kg/mu, phosphate fertilizer (P2O5) 20-25 kg/mu, potassium fertilizer (K2O) 40-45 kg/mu.
4. Yield level 11000-14000 kg/mu: nitrogen fertilizer (N) 37-45 kg/mu, phosphate fertilizer (P2O5) 17-20 kg/mu, potassium fertilizer (K2O) 35-40 kg/mu.
5. Yield level 7000-11000 kg/mu: nitrogen fertilizer (N) 30-37 kg/mu, phosphate fertilizer (P2O5) 12-16 kg/mu, potassium fertilizer (K2O) 30-35 kg/mu.
6. Yield level 4000-7000 kg/mu: nitrogen fertilizer (N) 20-28 kg/mu, phosphate fertilizer (P2O5) 8-11 kg/mu, potassium fertilizer (K2O) 25-30 kg/mu.
If drip irrigation and fertilization are used, chemical fertilizer can be reduced by 20%; if flood irrigation is used, each fertilization requires a 10%-20% increase in the amount of fertilizer. For facility cucumbers, all organic fertilizer and phosphate fertilizer are applied as base fertilizer, and the early flowering stage is mainly controlled. All nitrogen fertilizer and potassium fertilizer are applied as topdressing 6-11 times at regular intervals according to the nutrient requirements of the growth period, and the amount of nitrogen fertilizer applied each time should not exceed 5 kg/mu; for autumn-winter and winter-spring crops, nitrogen and potassium fertilizer are applied as topdressing 6-7 times, and for overwintering long-season crops, nitrogen and potassium fertilizer are applied as topdressing 10-11 times.