The yield increased firstly and then decreased with increasing of transplanting seeding age.

产量随着移栽秧龄增大先升高后降低。

youdao

The yield decreased while increased the seeding density with the same transplating seeding age;

同一秧龄不同播种密度处理间，产量随密度的增加而减小；

youdao

So, the quality of seedling reduced with the increase of seeding density and transplanting seeding age.

随着秧龄的增大，不同播种密度伺的差异越大；

youdao

Another option, although not recommended due my "young" age, was radial seeding.

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