Breakdown of ekitaihiryou ga hitsuyou to iu wake de mo nai.
Questions & Answers about ekitaihiryou ga hitsuyou to iu wake de mo nai.
This pattern means something like:
- it’s not necessarily the case that ...
- it’s not as though ...
- it does not mean that ...
So 液体肥料が必要というわけでもない is softer and more nuanced than a plain 液体肥料は必要ではない.
It usually implies:
- the speaker is rejecting an overly strong conclusion, or
- the speaker is saying that’s not always true, not exactly, or not completely.
So the nuance is closer to:
- It’s not necessarily the case that liquid fertilizer is needed.
- It’s not like liquid fertilizer is absolutely necessary.
There is often an implied contrast, such as:
- it may be useful, but
- it is not strictly required.
The と is part of という, which is quoting or labeling the idea before it.
In other words, 必要という treats necessary as the content of a statement:
- 必要 = necessary
- 必要という = the idea/statement that something is necessary
So the structure is roughly:
- 液体肥料が必要 = liquid fertilizer is necessary
- 液体肥料が必要というわけでもない = it’s not necessarily the case that liquid fertilizer is necessary
This use of という is very common when Japanese turns a whole idea into something that can be commented on.
