Zucchini cultivation requires a balanced approach to fertilization, with a strong emphasis on organic materials. It's crucial to ensure adequate phosphorus and potassium supply, especially during the fruiting stage. Proper nutrient management can significantly improve yield and quality. Here’s a detailed guide on how to fertilize zucchini effectively:
1. **Base Fertilizer**: Before planting, apply 2000-3000 kg of chicken manure per acre as a base. Additionally, incorporate 20 kg of diammonium phosphate, 10 kg of potassium sulfate, and 15 kg of urea into the soil at a depth of about 15 cm. This provides a solid foundation for healthy plant growth.
2. **Seedling Stage Fertilizer**: After transplanting and once the seedlings have established, apply 10-15 kg of diammonium phosphate to support early growth and root development. This helps the plants become stronger and more resilient.
3. **Top Dressing During Fruit Development**: When the fruits start to swell, begin watering and applying additional fertilizer. Use 10-15 kg of diammonium phosphate along with 0.1-0.2 kg of goldfish algae microbial fertilizer, and water it in thoroughly. After the first harvest, when the second set of fruits begins to grow, repeat the process. You may increase the fertilizer amount slightly depending on the plant's needs. Also, it's recommended to spray potassium dihydrogen phosphate on the leaves to ensure sufficient potassium supply, which is essential for fruit development and overall plant health.
By following these steps, you can optimize the growth and productivity of your zucchini plants. Always monitor the plants closely and adjust the fertilization plan based on their condition and environmental factors.
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