As one of the most significant cash crops in the world, cotton requires adequate nutrition to achieve high yields. Fertilizer management is one of the essential practices for cotton production. Applying the appropriate fertilizer dose at the right time significantly affects the crop’s growth and yields.
At sowing time, it is vital to provide the young cotton plant with enough nutrients to support healthy root growth and establishment. Generally, cotton growers apply a balanced fertilizer consisting of nitrogen, phosphorus, and potassium (NPK) at sowing time. The ideal NPK ratio for cotton production at sowing is 2:1:1.
Nitrogen is essential for the production of plant proteins, as well as the development of leaves, stems, and roots. Generally, cotton requires about 60 to 80 pounds of nitrogen per acre at the time of sowing. Phosphorus is necessary for plant root development and flowering. The recommended rate of phosphorus varies depending on the soil test results, but generally, growers apply between 30 to 40 pounds of phosphorus per acre.
Potassium is crucial for a cotton plant’s fruiting and fiber development. It also helps improve drought tolerance and resistance to pests and disease. Cotton growers usually apply between 30 to 40 pounds of potash per acre at the time of sowing.
It is also crucial to consider the micronutrient levels in the soil. Cotton plants require micronutrients like boron, manganese, zinc, and copper for healthy growth and development. A soil test can help determine the micronutrient levels in the soil and guide the application of necessary micronutrients.
In conclusion, applying adequate fertilizer doses at sowing time is crucial for cotton production. Cotton growers should consider the crop’s nutrient requirements, soil fertility levels, and apply the appropriate fertilizers to achieve high yields. Proper nutrient management practices can improve cotton plant growth, development, and fiber quality.