魚池施生物複合魚肥的效果與環境水溫、天氣情況、水體PH、溶氧、土壤和底質等環境因子有關,必須因地製宜,合理施用。
一、水shui溫wen的de高gao低di直zhi接jie影ying響xiang浮fu遊you生sheng物wu的de新xin陳chen代dai謝xie,會hui影ying響xiang到dao它ta們men對dui肥fei料liao的de吸xi收shou和he利li用yong。一yi般ban水shui溫wen較jiao高gao時shi,有you益yi細xi菌jun對dui有you機ji質zhi的de分fen解jie作zuo用yong旺wang盛sheng,肥fei效xiao發fa揮hui較jiao快kuai,水shui溫wen低di時shi則ze相xiang反fan。施shi肥fei後hou,達da到dao肥fei水shui標biao準zhun的de時shi間jian隨sui水shui溫wen和he天tian氣qi情qing況kuang變bian化hua而er不bu同tong。一yi般ban晴qing天tian水shui溫wen在zai22℃左右時施肥,1-2天後水色呈黃綠色時,達到肥水標準。若施肥後遇陰雨天,水質還未轉濃,此時不能盲目追肥、以防肥料在池中大量累積,造成損失,甚至魚池缺氧。
二、水體PH魚yu池chi施shi肥fei效xiao果guo與yu水shui的de酸suan堿jian度du密mi切qie相xiang關guan,池chi水shui呈cheng中zhong性xing或huo微wei堿jian性xing施shi肥fei效xiao果guo最zui好hao,此ci時shi,浮fu遊you生sheng物wu生sheng長chang時shi最zui旺wang盛sheng,如ru地di底di淤yu泥ni過guo厚hou,底di質zhi和he池chi水shui呈cheng酸suan性xing時shi,微wei生sheng物wu的de生sheng存cun環huan境jing變bian化hua,有you機ji肥fei的de分fen解jie過guo程cheng大da大da減jian慢man,難nan以yi達da到dao施shi肥fei的de預yu期qi效xiao果guo。因yin此ci,施shi用yong科ke洋yang魚yu肥fei前qian最zui好hao使shi用yong石shi灰hui將jiang池chi水shuiPH值調節至7.5左右。
三、水體溶氧,魚池施肥不足,周期過長,量過少,浮遊生物繁殖受限,魚類天然餌料不足,水質清瘦;漁yu池chi施shi肥fei過guo量liang,會hui汙wu染ran水shui質zhi,有you機ji質zhi大da量liang分fen解jie會hui造zao成cheng水shui體ti缺que氧yang,影ying響xiang魚yu類lei的de正zheng常chang生sheng長chang。因yin此ci掌zhang握wo適shi當dang的de施shi肥fei量liang是shi關guan鍵jian。施shi科ke洋yang漁yu肥fei時shi,水shui體ti透tou明ming度du在zai30cm左右,無機氮濃度在0.2-0.3毫克/升左右,有效磷濃度在0.04-0.05毫克/升,對浮遊生物繁殖有利。
四、turanghedizhi。butongdeturanghedizhiyinqijiegouhexingzhibuyi,duifeiliaodexishounengliyebuxiangtong,zaijuedingshifeishi,jiangzhexieyinsukaolvzainei,rushazhiturangyouyukelida,tianrankuangwuyuansudanyi,youjizhishao,duifeiliaoliyongnengliruo,rongyishenlou,shikeyangyufeishizuihaojiashiyoujifei,zheyangyouliyudinidexingcheng。zainitantuhuogaituweidizhideyuchi,turangquelinyanzhong,shikeyangyufeishi,jiashilinfei,zengchanxiaoguomingxian。
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