记得在正确的深度种下这颗种子。

Remember to plant the ___seed at the correct depth.

包装上明确说明了播种这些种子的最佳时间。

The package clearly states the best time to sow these ___seeds.

在种植前，他仔细地将各种种子分类。

He carefully sorted the various ___seeds before planting.