功能性肥料是指除含有少量的營養元素供應蔬菜生長外
，還具有其他功能的肥料，如促進蔬菜生根、tigaozhizhudekangnixinghuotigaoshucaidekangbingnenglideng，suoyidangshucaichuxianmouxiewentishi

，cainongchanghuitongguoshiyonggongnengxingfeiliao，tiaojiezhizhudechangshi，wangwangnenggouqudelianghaodeshiyongxiaoguo。但記者在壽光市古城街道采訪時，不少菜農向記者提出問題：為何功能性肥料在前兩次用時效果較好
，但是連續單獨使用後，效果卻越來越不明顯？

原yuan來lai，有you些xie菜cai農nong在zai衝chong施shi功gong能neng性xing肥fei料liao時shi，看kan到dao剛gang開kai始shi使shi用yong時shi的de效xiao果guo明ming顯xian，能neng夠gou很hen好hao的de促cu進jin蔬shu菜cai的de生sheng長chang，於yu是shi就jiu認ren為wei功gong能neng性xing肥fei料liao也ye能neng滿man足zu蔬shu菜cai生sheng長chang對dui礦kuang質zhi元yuan素su的de需xu求qiu，於yu是shi就jiu長chang期qi連lian續xu單dan獨du使shi用yong功gong能neng性xing肥fei料liao，效xiao果guo卻que越yue來lai越yue不bu明ming顯xian。原yuan因yin就jiu在zai於yu
，剛gang開kai始shi使shi用yong功gong性xing肥fei料liao時shi，土tu壤rang中zhong原yuan來lai使shi用yong的de肥fei料liao較jiao多duo，養yang分fen含han量liang充chong足zu，在zai短duan時shi間jian不bu使shi用yong礦kuang質zhi元yuan素su肥fei料liao，使shi用yong的de功gong能neng性xing肥fei料liao也ye能neng夠gou促cu進jin蔬shu菜cai對dui礦kuang質zhi元yuan素su的de吸xi收shou利li用yong
，滿man足zu蔬shu菜cai生sheng長chang的de需xu求qiu。

但dan因yin為wei多duo數shu功gong能neng性xing肥fei料liao中zhong的de礦kuang質zhi營ying養yang元yuan素su含han量liang低di，如ru果guo不bu配pei合he使shi用yong水shui溶rong性xing肥fei料liao或huo者zhe複fu合he肥fei等deng

，就jiu會hui導dao致zhi土tu壤rang中zhong的de氮dan磷lin鉀jia及ji其qi他ta中zhong微wei量liang元yuan素su越yue來lai越yue少shao，從cong而er導dao致zhi蔬shu菜cai長chang勢shi越yue來lai越yue差cha，所suo以yi功gong能neng性xing肥fei料liao不bu能neng連lian續xu單dan獨du使shi用yong。