Late rice high yield and water-saving cultivation techniques have been successful

The late rice high-yielding and water-saving cultivation technology developed by Yu Songxiang, a researcher at the Hunan Provincial Institute of Soil and Plant Resources, has recently achieved great success. This innovative method combines straw mulching with no-tillage and shallow-wet irrigation techniques. Compared to traditional farming practices, it can increase the number of effective panicles by 23,000 per 667 square meters (1 acre), and boost the number of grains per panicle by 18.3 in late rice. During the hot and dry period within 20 days after transplanting, the number of irrigation sessions can be reduced by 50%, and the total water usage can drop by 30 cubic meters per 667 square meters. In addition to improving yield and saving water, this technique offers several other benefits. First, it allows for easier straw management—both plowing and harvesting become more efficient, helping farmers save time and labor on raking and watering. Second, the straw mulch helps reduce solar radiation, lowering the surface temperature of the mud by 2-3 degrees Celsius, which is beneficial for the greening of late rice. Third, the practice of straw-covered no-tillage increases soil organic matter and provides additional potassium, meeting the nutritional needs of late rice plants. Lastly, it prevents nitrogen competition between microorganisms and rice seedlings during the decomposition of rice straw, promoting healthier early growth and ultimately increasing both the number of effective panicles and the grain count per panicle. This breakthrough not only enhances productivity but also supports sustainable agriculture by reducing resource use and improving soil health. It's a promising solution for farmers looking to balance efficiency with environmental responsibility.

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