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Some agricultural crops and practices in Tamil Nadu that can yield high profits and good returns include horticulture (fruits, vegetables, spices), floriculture, organic farming, aquaculture, sericulture, hybrid and high-yielding varieties of staple crops, and agroforestry.

Micronutrients improve crop yields by supporting enzyme activation, chlorophyll synthesis, nutrient transport, stress tolerance, and reproductive development.

In the Indian climate, it is generally recommended to provide a balanced fertilizer at the seedling stage, nitrogen during early vegetative growth, and a higher phosphorus and potassium fertilizer during flowering and fruiting. Reducing nitrogen and continuing with phosphorus and potassium support fruit ripening. Monitoring and addressing any micronutrient deficiencies are also important for optimal growth and yield. Local agricultural experts can provide more specific guidance based on the region.

To cultivate cotton in Tamil Nadu, select suitable varieties, prepare the land, sow quality seeds at the right time, provide adequate irrigation, manage nutrients, control weeds, monitor and manage pests and diseases, harvest when bolls are mature, and store the cotton properly. Seek guidance from local experts and adapt these steps to your specific conditions for successful cotton cultivation in Tamil Nadu.