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Last Irrigation in Wheat: When and How to Do It
Wheat is a staple crop that feeds millions of people around the world. As with any crop, proper irrigation is key to achieving optimal yields and quality. In the case of wheat, the last irrigation before harvest is especially crucial. Timing and method are key factors to consider in order to maximize the crop’s potential.
When to do the last irrigation
The last irrigation in wheat should be done at the correct time to avoid negative impacts on the crop. Depending on the area and climate, the ideal timing may vary. However, in general, the last irrigation should be done approximately two weeks before harvest. This will allow enough time for the crop to mature and dry down before harvest, without causing stress or excess moisture.
If the final irrigation is done too close to harvest, the crop may become overly moist, leading to poor quality grain, increased fungal diseases, and difficulty harvesting. Conversely, waiting too long to irrigate can lead to water stress, reducing yield and quality. Therefore, timing is crucial to achieve optimal results.
How to do the last irrigation
The method used for the last irrigation in wheat is critical to ensure even watering and avoid overwatering. Ideally, a sprinkler or drip irrigation system should be used to apply water evenly across the field. This will allow the water to soak into the soil and reach the root zone without causing runoff or pooling on the surface.
It is essential to apply the right amount of water, neither too much nor too little. The goal is to ensure that the soil is moist to a depth of at least 18 inches. However, overwatering can lead to water-logging, which reduces oxygen levels in the soil and can lead to root rot and other diseases. Additionally, excess moisture can cause lodging, which can flatten the crop, making it more difficult to harvest.
Conclusion
The last irrigation in wheat is essential to ensure optimal yields and quality. The timing and method used are critical factors to consider. Two weeks before harvest is the ideal time to irrigate, and using a sprinkler or drip irrigation system will help to ensure even watering. It is essential to apply the right amount of water to avoid overwatering, which can lead to fungal diseases, lodging, and poor harvestability. By following these guidelines, farmers can help to ensure the success of their wheat crops for optimal yield and quality.