bozhongyumiaoshicongshihuamuguimohuashengchandezhuyaofangfazhiyi，muqianzhongxiaoxingmiaopubozhongyumiaotongchangshikaozhangqijileidejingyanjinxing，dansuizhehuamuchanyedejingzhengyuelaiyuejilie，miaomudezhongzhiheshengchanyuelaiyuexiangbiaozhunhuaheguimohuafazhan。zhiyouzhangwokexuehelideyumiaobozhongjishucainengpeiyuchuzhilianggenggaodehuamu，tongshijieyueshengchanchengben。xiamianweinijieshaohuamubozhongyumiaojishudeyixiechangyongjishujifangfa。
1、huamubozhongdezhongzishuliangruhequeding？
生产的育苗需要的种子数量，与计划育苗的数量、种子的净度、千粒重、发芽率以及苗圃的环境条件和技术水平有关，可以根据以下公式来计算：x=A×W×（1+C）/（P×G×1000×1000）式中X代表面积（或单位长度）实际所需要的播种数A代表单位面积（或单位长度）的计划亩产数（株） W代表千粒重（克）P代表种子的净度（%）G代表种子的发芽率（%）1/1000×1000将千粒重换算为每粒种子的重量（千克）；C代表损耗系数。损耗系数C因树种、苗圃地理环境条件及育苗技术水平而异，种粒越小C值越大，极小粒种子的C值在0-4之间，如油松约为0.4-0.8；大粒种子的C值接近于0。环境条件恶劣的地区C值较大，而集约管理则C值较小。
2、shiyibozhongyumiaofadehuamupinzhong
bozhongyumiaoshifanzhimiaomudezuizhuyaofangfa，ruyousong、heisong、cebo、cihuai、chouchun、kulian、hetao、banlideng。zhenye、kuoyeshuzhongjuedabufendoucaiyongbozhongyumiao。qiyoudianshichanlianggao、chengbendi、miaomujuyouwanzhengdegenxihedingya，duiwaijietiaojianshiyingxingqiang。qiquedianshiyoudeshuzhongzhongzinanyufayahuochengshuman，bushiyiyongzhongzifanzhi，lingwai，zhongzifanzhibunenghenhaodibaochimushudetexing。
3、花木播种的时间
chunbo：chunjishizhuyaodebozhongjijie，shiyujuedaduoshushuzhongbozhong。bozhongshijianyingzaiturangjiedonghoulijijinxing。duiyuyixiepashuangshuzhong。rucihuai，bozhongshijianyingxuanzaiyoumiaochutuhoubushouwanshuangweihaiweiqianti。shijianrengranshiyuezaoyuehao。
qiubo：qiujibozhongshiyuzhongpijianyingdedalizhongzihexiumianqizhang，fayakunnandezhongzi，rumali、shanxing、pingliu、huajiao、banli、kulian、yinxingdeng。qiuboyouliyuzheixiezhongzitongguoxiumianqi，diernianchunyoumiaochutuzaoerqi，miaomushengyuqiyanzhang，miaomukangnixingqiangdeng。qiubodeyaodianshibozhongshijianbuyitaizao，yifangqiubohoudangnianqiujifaya，zhishiyoumiaozaoshoudonghai。yuanzeshangshizaiturangdongjieyiqianbozhong，yuewanyuehao。haishiyukanghanxingjiaoqiangdezhenyeshu，rucebodangnianzhongzichengshuhoujibo，yuezaoyuehao。
xiabo：xiaboshiheyuchunxiazhongzichengshueryoubuyizhuzanghuoshenghuolijiaochadezhongzi，ruyang、liudeng，haishiyuyinchunhanweinengjishibozhongdekuoyeshuzhong，rucihuai、mianhuaideng，zhenyeshubuyixiabo。xiabodeyaodianshi：yingchenyuhouhuoguangaihoubozhong，bingzaichuyaqianhoujiyoumiaoqibaochimiaopudishirun，caiquzheyincuoshideng。xiaboshijianyingjinliangtizao，yibianbaozhengmiaomudongqianchongfenmuzhihua。
4、huamubozhongdeshenduruhequeding？
播种深度对种子萌发影响很大，过深或过浅都对发芽不利。一般情况下，播种深度相当于种子直径的2-3倍。沙质土壤覆土要厚一些，春夏播种覆土要薄一些。有条件时，覆土层不用苗床土而用疏松的沙土、腐质土、泥炭土、锯末等，对于土壤保温、保湿和幼苗出土有利。播种深度要均匀一致，否则幼苗突出参差不齐。
5、花木播种的方式
撒播，适于小粒种子如杨、柳、泡桐等树种在种床上播种。为使播种均匀，种子里掺上细沙一起播出。在苗床上由于撒播后，出苗不成条带，对于除草、松土、病虫害防治等管理工作不便利，而且小苗长高后影响通风透光，最好该撒播为条带撒播，播幅10厘米左右。条播：适于中粒种子，如刺槐、棉槐、侧柏、松、臭椿等。条播播幅在3-5厘米，行距20-35厘米。点播：适于大粒种子和发芽势强，幼苗生长旺盛的植物，如银杏、板栗、核桃、桃、杏等及少量珍贵树种如雪松、玉兰等都适宜点播。
