Comprehensive Resources for Agriculture: Topical Questions, Past Papers, and Answers
Atika School
Timing is Key: Transplanting Paddy Rice at the Right Growth StageAt what stage of growth should paddy rice be transplanted?
Detailed Answer: Transplanting Paddy Rice at the Optimal Growth Stage Paddy rice, also known as rice that is cultivated in flooded fields, should be transplanted at a specific stage of growth to ensure successful establishment and growth. The recommended stage for transplanting paddy rice is when it is 2-4 weeks old, or when it has reached a height of 6-20cm (approximately the height of a pencil), and has developed 4-6 leaves. Transplanting rice at this growth stage allows for a balance between the plant's readiness for transplantation and its ability to adapt to the new environment. At 2-4 weeks old, rice seedlings have developed a strong root system and have attained sufficient height and leaf number to withstand the transplanting process. By this stage, the rice seedlings have established a robust root system, which enables them to quickly anchor themselves in the flooded field. This ensures that they can efficiently access water and nutrients from the soil, promoting healthy growth and development. Transplanting at the 2-4 weeks old stage also helps to minimize transplant shock, as the young seedlings are still flexible and can adapt to the new growing conditions more easily. They are more resilient and less prone to wilting or suffering from stress during the transplantation process. Additionally, transplanting paddy rice at this growth stage allows for uniform establishment and growth of the crop. Seedlings transplanted at the same stage have similar growth potential, which promotes evenness in plant height and maturity. This uniformity facilitates easier management of the crop, including irrigation, fertilization, and weed control. In conclusion, the optimal stage for transplanting paddy rice is when the seedlings are 2-4 weeks old, have reached a height of 6-20cm, and have developed 4-6 leaves. This stage ensures that the seedlings have a strong root system, can adapt to the new environment, and promotes uniform growth and establishment of the crop.
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