十四、种子播种后应具备那些条件才能发芽出土? 种子播种后必须具备有适宜的水分(湿度)、温度和氧气等三个条件才会发芽出土。 1、水分:水分是种子发芽的重要条件,处于干燥状态下的种子是不能发芽的。所以通常播种前都要先用清水浸种,或在一定湿度的沙中处理一段时间。播种后在畦面上盖草或复盖塑料簿膜,其目的都是为了创造一个湿润的环境条件,让种子充分吸收水分,以利于种胚萌动发芽出土。 14. Seeds should be germinated after they have been planted. Seeds must be planted with suitable moisture (moisture), temperature and oxygen to germinate. 1, moisture: moisture is an important condition for seed germination, the seeds in a dry state can not germinate. So usually before sowing with water soaking, or in a certain degree of humidity in the sand for some time. After sowing or sacking, the purpose is to create a wet environment and allow the seeds to fully absorb the moisture, so as to facilitate germination and germination of the embryo.