Sure, here’s an article on Maize TNAU (Tamil Nadu Agricultural University) foliar application information:
Title: Enhancing Maize Yield with Effective TNAU Foliar Applications
Introduction:
Maize, also known as corn, is a staple crop across the world and plays a vital role in both food and feed industries. To ensure optimal productivity of maize plants, it is crucial to adopt effective agricultural practices. One such technique recommended by the Tamil Nadu Agricultural University (TNAU) is foliar application. In this article, we will delve into the key aspects of TNAU’s recommended foliar applications for maize to help farmers maximize their yields.
Understanding TNAU Foliar Application:
TNAU promotes the use of foliar applications as an essential tool to supplement the nutritional requirements of maize plants. Foliar application involves spraying a liquid fertilizer solution directly onto the plant leaves, allowing for efficient nutrient absorption through the leaf tissue. Implementing TNAU’s foliar application strategies can significantly enhance maize growth, development, and overall yield.
Recommended Nutrient Solutions for Maize Foliar Application:
1. Nitrogen (N): Nitrogen plays a critical role in promoting foliage growth and overall plant vigor. TNAU recommends applying nitrogen-based foliar fertilizers during the vegetative stage, in the form of urea or nitrogen solution with a concentration of 2-3%.
2. Phosphorus (P): Phosphorus is vital for optimal root development, flowering, and seed formation in maize plants. TNAU suggests applying phosphorus-based foliar fertilizers during the reproductive growth stage, typically in the form of mono ammonium phosphate (MAP) or di ammonium phosphate (DAP) at a concentration of 1-1.5%.
3. Potassium (K): Potassium aids in improving stress tolerance, water-use efficiency, and overall yield of maize plants. TNAU recommends applying potassium-based foliar fertilizers during the grain filling stage, in the form of potassium nitrate or potassium sulfate at a concentration of 1-1.5%.
4. Micronutrients: Apart from the primary macronutrients mentioned above, maize plants also benefit from the application of essential micronutrients like zinc (Zn), boron (B), iron (Fe), copper (Cu), and manganese (Mn). TNAU advises incorporating these micronutrients in the foliar spray solution in their recommended concentrations during the respective growth stages.
Application Techniques:
1. Timing: TNAU emphasizes the importance of timing while conducting foliar applications. Applying the foliar sprays during the recommended growth stage ensures maximum nutrient absorption and utilization by the maize plants.
2. Correct Concentration: Following the recommended concentration levels in the foliar spray solution is crucial. Higher concentrations may result in leaf burn, while lower concentrations may not provide the desired nutrient uptake.
3. Spraying Equipment: Farmers must use high-quality spraying equipment to achieve uniform coverage and minimize wastage during foliar applications. Proper calibration of the equipment is essential to ensure accurate application rates.
Conclusion:
Implementing TNAU’s recommended foliar application techniques for maize can significantly improve crop productivity and yield. By supplementing the nutritional requirements of maize plants during crucial growth stages, farmers can witness robust plant development, enhanced tolerance to stress, and ultimately increase their overall maize production. It is crucial for farmers to consult with agricultural experts, conduct soil tests, and assess their specific cultivation conditions to tailor the foliar application practices effectively, maximizing the benefits for their maize crops.