以二年生草本花卉黑心菊为材料，研究了温室环境对其生长的影响。

The influence of greenhouse environment on the growth of in rudbeckia hirta a biennial herbaceous flower was studied.

youdao

以二年生草本花卉黑心菊为材料，研究了温室环境对其生长的影响。

The influence of greenhouse environment on the growth of in rudbeckia hirta a biennial herbaceous flower was studied.

youdao