Wheat is one of the most important food crops grown in India, and proper irrigation management plays a major role in achieving good yield. Among all irrigations given to wheat, the first irrigation is the most critical. Many farmers ask about the right time to give the first irrigation because a small mistake at this stage can reduce tillering and final grain yield. Understanding the correct timing helps the crop establish well and grow uniformly.
The recommended time for the first irrigation in wheat is at the Crown Root Initiation (CRI) stage. This stage usually occurs 20 to 25 days after sowing, depending on temperature, soil type, and sowing method. At this stage, the plant starts developing secondary roots called crown roots, which play a key role in nutrient and water uptake.
If the first irrigation is delayed beyond the CRI stage, the number of tillers per plant reduces significantly. Fewer tillers mean fewer ear heads, which directly lowers yield. On the other hand, giving irrigation too early, before the CRI stage, encourages shallow root growth and weak plants. Therefore, timing the first irrigation correctly is very important.
At the CRI stage, wheat plants show active growth. Leaves become greener, and small tillers start appearing from the base of the plant. Adequate soil moisture at this stage helps the crown roots develop properly and supports strong tiller formation. This builds a strong foundation for the crop for later growth stages.
Soil type affects irrigation timing slightly. In light soils, moisture drains quickly, so the first irrigation may be needed closer to 20 days after sowing. In heavy soils, which hold moisture longer, irrigation can be given closer to 25 days after sowing. Farmers should check soil moisture by hand; if the topsoil is dry and cracks appear, irrigation should not be delayed.
Method of sowing also influences water requirement. In broadcast or flat sowing, water spreads easily, but care should be taken to avoid waterlogging. In raised bed planting, water is applied in furrows, and the first irrigation may be slightly delayed, as beds retain moisture longer.
It is also important to combine fertilizer application with the first irrigation. Many farmers apply the first split of nitrogen fertilizer just before or along with the CRI irrigation. This helps nutrients dissolve and reach the root zone, improving tiller growth.
Over-irrigation at the first stage should be avoided. Standing water for long periods can damage roots and increase the risk of disease. Light and uniform irrigation is always better than heavy watering.
In rainfed areas or where early winter rains occur, farmers should adjust irrigation timing based on available moisture. If sufficient rainfall has occurred around the CRI stage, irrigation may be delayed slightly.
In conclusion, the recommended time for the first irrigation in wheat is 20 to 25 days after sowing at the Crown Root Initiation stage. This irrigation plays a key role in root development and tiller formation. By giving water at the right time and in the right amount, farmers can ensure healthy crop growth, better tillering, and higher wheat yield.
