Water Management after Rice Transplantation
After transplanting rice, implementing scientific and reasonable water management tailored to the different growth stages is a fundamental technique for achieving high and stable yields in hybrid rice. Proper irrigation not only supports healthy plant development but also ensures optimal grain production.
**Shallow Water during Tillering**
Once the seedlings enter the tillering stage, shallow water irrigation should be the primary method. Typically, a water layer of 0.5 to 1 inch should be maintained in the paddy field. If the water depth is too deep, it can delay root development and cause delayed emergence of new tillers, which may lead to excessive vegetative growth. On the other hand, if the water layer is too shallow, it might result in an overabundance of tillers, which can consume more nutrients than necessary, leading to a large number of unproductive tillers.
**Controlling Seedling Growth**
When the rice plants reach a certain number of tillers, it's important to drain the field appropriately to control late tillering. However, this should be done carefully, especially in regions prone to summer droughts. If there is no reliable water source, it's advisable not to dry the field completely, as this could lead to water stress during the mid to late growth stages, negatively affecting the development of the panicles and overall yield.
**Water Management During Booting and Heading**
During the booting stage, rice requires sufficient water to support the formation of the panicle. The paddy field should maintain a water depth of 1 to 2 inches. During the heading phase, a shallow water layer of 0.5 to 1 inch is recommended. If the field experiences water shortages during these critical periods, it can result in uneven panicle development or even failure to head, which significantly reduces the final yield.
Proper water management throughout the entire growth cycle plays a crucial role in ensuring the health of the rice plants and maximizing productivity. Farmers should monitor weather conditions and adjust their irrigation practices accordingly to achieve the best results.
Guangzhou Fuerle Health Technology Co., Ltd , https://www.fuerlegroup.com