High-yield fertilization technology for cotton

Cotton cultivation requires a precise and targeted approach to fertilization, tailored to the plant's growth stages and nutrient needs. The goal is to ensure that cotton receives adequate nutrition without over-fertilizing, maintaining a balanced and stable growth pattern. This helps the crop develop early, remain vigorous throughout June, avoid excessive growth in July, and prevent premature flowering or delayed maturity. By achieving a well-balanced structure—ensuring full development of inner, middle, and outer bolls, as well as upper, middle, and lower fruiting positions—the plant can reach its full yield potential with high-quality cotton production. The ideal NPK ratio for cotton is 1:0.4:0.8. For every 200 kg of lint produced, approximately 37 kg of nitrogen, 14 kg of phosphorus, and 30 kg of potassium are required. To enhance soil fertility and improve water and fertilizer efficiency, organic fertilizer should be regularly incorporated into the soil. This not only boosts nutrient availability but also supports long-term sustainable yields. Here are the detailed fertilization techniques: 1. **Organic Bio-Fertilizer for Bauxite**: Applying the right type of bio-fertilizer is crucial for bauxite soil. In some cases, improper use of inorganic fertilizers has led to poor root development and reduced productivity. The correct method involves deep application of biogas slurry combined with superphosphate before sealing the field. Mixing 3,000 kg of compost with 6 kg of "Cunong" seedling fertilizer per mu ensures better root establishment. This should be done between April 15th and 25th, on sunny days when the ground temperature is above 12°C. 2. **Use of Organic-Inorganic Nest Fertilizer**: Nest fertilizer has become a key component in modern cotton farming. Using a trusted brand like "Chu Nong" bio-organic nest fertilizer helps improve root health, disease resistance, and seedling survival. It promotes quick growth and long-term stability. Apply 20 pounds per mu, with 6 nests per acre. 3. **Bud Fertilizer with Compound Bio-Organic Fertilizer + Phosphorus-Potassium Micro-Fertilizer**: When buds appear, it's time to apply a combination of bio-organic fertilizer and micro-nutrients. Use about 60–240 kg of bio-organic fertilizer, 30 kg of phosphate, 30 kg of potassium, and 3 kg of boron-zinc fertilizer per mu. Alternatively, mix 80–120 kg of compound fertilizer with 3 kg of boron and zinc per mu. Apply using a small cultivator to combine fertilization, loosening, and weeding in one step. 4. **Peach Fertilizer with Organic-Inorganic Compound Fertilizer + Compound Fertilizer**: Around July 10th, when the cotton plant has 1–2 bolls, apply 80 kg of organic-inorganic compound fertilizer plus 15 kg of urea per acre. Reapply after 15 days with 30–40 kg of compound fertilizer per acre. 5. **Top Fertilizer with Quick-Acting Nitrogen**: Around August 8th, when the plant has 20–22 fruit branches, remove the top heart. In strong fields, apply 25 kg of urea per acre. In weak fields, apply 30 kg three days before pruning. If the weather is dry, apply after 5 PM for best results. 6. **Zhuangqiu Peach Fertilizer Based on Field Conditions**: From August 25th to September 1st, when the plant starts forming flower buds, apply 15 kg of urea per acre. This helps promote autumn fruiting and large bolls, especially since early blooming before September 20 can lead to bigger yields. Fertilization at this stage is essential. 7. **Foliar Fertilization Throughout the Growing Season**: From the bud stage until mid-September, apply foliar sprays. Use potassium-based fertilizers in areas with potassium deficiency or weak growth. In nitrogen-deficient fields, use amino acid or humic acid-based foliar sprays. During the flower bud period, spray 3–4 times with Tianfeng Brassin to boost nutrient intake and support healthy flowers and fruits. By following these practices, farmers can ensure optimal growth, higher yields, and improved quality of cotton. With careful planning and proper nutrient management, cotton crops can thrive under various environmental conditions.

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