Nitrogen supply had both indirect and direct effects on the kernel development. On the one hand,nitrogen influenced the plant dry matter production so as to change the assimilate supply for kernel growth.
5 氮肥一方面通过影响植株物质生产力来改变同化物向籽粒的供应，间接作用于粒重形成；另一方面也通过调节与粒重形成相关酶的活性直接作用于籽粒发育。
参考来源 - 氮肥对夏玉米籽粒库容建成和充实的影响机理·2,447,543篇论文数据，部分数据来源于NoteExpress
Ingo has been involved in Linux kernel development since 1995.
Ingo从1995年开始就一直参与Linux内核的开发。
It's only when the kernel development needs to happen that there's much challenge to it...
只有在需要进行内核开发时，才会遇到一些挑战。
It's a great way to experiment with file system development without resorting to kernel development.
这是一种在不借助内核开发的情况下开发文件系统的好方法。
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