论文部分内容阅读
研究了托盘育苗剪叶程度对烟苗素质及烟株生长状况的影响。结果表明 :在苗期进行 4次剪叶 ,每次剪去较大叶片的 1/ 2及下部老黄叶 ,每隔 5d剪一次效果最好
The effects of the extent of leaf pruning on the quality of tobacco seedlings and the growth status of tobacco plants were studied. The results showed that cutting the leaves 4 times at the seedling stage, cutting 1/2 and lower yellow leaves of the larger leaves at a time and cutting every 5 days was the best