種zhong肥fei是shi指zhi與yu播bo種zhong同tong時shi施shi下xia或huo與yu種zhong子zi拌ban混hun的de肥fei料liao。種zhong肥fei對dui作zuo物wu種zhong子zi的de影ying響xiang是shi很hen大da的de，如ru選xuan用yong恰qia當dang可ke以yi保bao證zheng作zuo物wu種zhong子zi順shun利li萌meng發fa及ji幼you苗miao茁zhuo壯zhuang成cheng長chang，但dan有you些xie肥fei料liao是shi不bu宜yi作zuo作zuo物wu種zhong肥fei的de，不bu宜yi作zuo作zuo物wu種zhong肥fei的de化hua肥fei有you：

有腐蝕性的肥料 碳酸氫銨、anshuijuyouhuifaxinghefushixing

，yixunshangzhongziheyoumiao
，guolinsuangaihanyouyoulitaideliusuanhelinsuan，duizhongzifayaheyoumiaoshengchanghuizaochengshanghai，yibanbuyizuozhongfei。kejiangzheleifeiliaoshizaibozhonggouzhixiahuoyuzhongzixianggeyidingdetuceng，huojiangguolinsuangaiyutuzafeihunheshiyong。

有you毒du害hai的de肥fei料liao尿niao素su中zhong常chang含han有you少shao量liang的de縮suo二er脲niao成cheng分fen
，對dui種zhong子zi和he幼you苗miao有you毒du害hai作zuo用yong。另ling外wai
，含han氮dan量liang高gao的de尿niao素su分fen子zi透tou入ru種zhong子zi的de蛋dan白bai質zhi分fen子zi中zhong，使shi蛋dan白bai質zhi變bian性xing
，影ying響xiang種zhong子zi發fa芽ya。

含有害離子的肥料 氯化鉀
、氯化銨等化肥含有氯離子，施入土壤後會產生水溶性氯化物，對種子發芽和幼苗生長不利。硝酸銨、硝酸鉀等肥料所含的硝酸根離子，對種子發芽也有影響。

有強堿性的化肥 窯灰鉀肥、gangzhalinfeidengqiangjianxingfeiliaoyebuyizuozhongfei。yaohuijiafeixishixingqiang
，xishuihoufangchudaliangreliang，yishaohuaizhongziheyougen。xuzuozhongfeishi，bixuyuyoujifeihunhe，shirubozhonggouxuenei，zaibozhongfutu。