春季花卉播种要点: 春季用种子繁殖花卉简单易行,新生的植株长势旺、寿命长,若要播种成功必须把好五关”。 种子寿命种子寿命长短不一,一般花卉种子能保持二、三年或更长时间。但有的种子采收后应立即播种,如山茶花,其种子在干燥状态下易失去发芽力;樱草类的种子发芽力也只能保持数月。因此,掌握各种种子的生活力是确保播种成功的前提。 种子处理核果类和种皮较硬的种子,应冬季沙埋处理。冬季干放的种子,播前需用温水或冷水浸种,如玉兰花,搓去种皮后用湿沙埋100天左右才能播种。 发芽条件种子能否发芽,决定于水分、温度、通气、光照四个条件。播后土壤应保持不干不湿(水生花除外)。过湿通气差,种子易沤烂,过干,特别是发芽阶段,会停止发...
情人节鲜花英文用语: "no matter how ugly you think you are, that special someone that loves you believes you are the most beautiful and irresistible thing on earth and nothing can change that""i thought i loved him, but he has to break my heart for me to know what true love really is"."love can make you do things that y...