When a larger number of grains relative to the size of vegetative parts is produced, more nitrogen will be needed to support grain growth, and there will be a sharper drain in leaf nitrogen content.
When a larger number of grains relative to the size of vegetative parts is produced, more nitrogen will be needed to support grain growth, and there will be a sharper drain in leaf nitrogen content.
当相对于营养部分来说生成较大数量的籽粒时，更多的氮要用来支持这些籽粒生长，叶片含氮量会急剧下降。