播种后一定要踩墒，这样有助于植物的生长。
One must tramp down the earth over sown seed, which is good for the plants.
我们播种后两周，绿色的小嫩芽就开始长出了。
Two weeks after we'd planted the seeds, little green shoots started to appear.
不同播种期播种后感受不同光温，其发育速度不等。
The difference in sowing date, light and temperature brings about different speeds of growth.
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