Ramie is a key to high yield pruning
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Pruning is a crucial practice in the field management of ramie, playing a vital role in shaping plant structure, balancing vegetative and reproductive growth, improving pollination conditions, and promoting earlier maturity. Proper pruning techniques and appropriate pruning patterns are essential for boosting castor yield.
The first pruning should take place when the plants have developed 6–7 true leaves, typically around mid-June. At this stage, the growing tip should be removed before buds appear—commonly referred to as "topping." The second pruning occurs in mid-July, where five main branches are selected, and the rest are cut back within the first ten days. Secondary branches on the five primary ones should be trimmed, leaving 1–2 secondary branches depending on the plant’s health and fertility, while minimizing or eliminating any tertiary branches.
Effective pruning requires attention to several key points: First, pruning methods should not be applied rigidly; they should be adjusted based on variety, soil quality, planting density, and the skill level of the workers. Decide in advance how many branches to retain and carry out the process promptly. Second, timing is critical—pruning too late can significantly reduce yield. The first topping and final cut are especially important. Pruning should be done on sunny afternoons, as this helps the wounds heal faster. Third, don’t leave buds unattended. Before the bud emerges, the tip must be removed immediately once it appears or just as it starts to show. Fourth, once a pruning strategy is set, it should be applied flexibly. Depending on local climate, multiple levels of branches may mature, and these should be carefully retained. Finally, pruning must be clean and thorough, ensuring no dormant buds are left behind, which could lead to unwanted growth later.