棉花种子自播种到出苗,需要经历一系列生理、生化代谢过程。这些过程受制于种子本身的质量,也受所处环境条件的影响,为了确保棉种一播全苗,必须做好以下工作。一、选种棉花播种后能否出苗、出全苗与种子自身的质量有很大关系。种子质量要求:纯度达到98%以上, Cotton seeds from sowing to emergence, need to go through a series of physiological and biochemical metabolic processes. These processes are subject to the quality of the seeds themselves, but also affected by the environmental conditions in which they are located. In order to ensure that the cotton seedlings are fully sowed, the following work must be done. First, the selection of cotton sowing after emergence, the whole seedlings and seed their own quality has a lot to do. Seed quality requirements: more than 98% purity,