zhongcaoyaozhongleifanduo,daduoshuweiduonianshengdecaobenzhiwu,shiyileichangqichuyuyeshengzhuangtaidezhiwu,zhuyaokaotianchifan。danyouyuzhongcaoyaodeyingyangguilvyutedianjiaoweituchu,renmenduiqishifeijishudeyanjiuyouhenshao,shidemuqianzaizhongcaoyaoshifeishangcunzailiangzhongpianxiang,yizhongrenweiyeshengxingzhongcaoyaobuxuyaoshifei,youqibunengshihuafei,zuiduoshidianyoujifei;dierzhongshibanyongdatianzuowudeshifeifangfa,yiweidashuidafeicuichanliang,erbuzhenduizhongcaoyaodetedianjinxingkexueshifei。zheliangzhongqingkuangduirengongzaipeizhongcaoyaodeyaocaichanchuhetigaoyaoxiaodoushibulide。hebeihehenanbufendiqudetiaozhabiaoming,dangdizaizhongcaoyaoshifeiguanlizhong,zhuyaoshiyiyoujifeidangjia,pingjingyanshifei,zaishifeijueceshanghaibunengyunyongcetushifeiheyaoyongzhiwuyingyangzhenduandengxianjinjishu。yibanzaishifeifangfashang,zhongshidifeibushizhuifei。dabufendifeizaiqiujishiyong,yeyoushaobufenzaichunjiyong,jifeishiyoujifei,zhuifeiyongfushudeyoujifei,rubingfeiherenfenniaodeng。
專zhuan家jia指zhi出chu,中zhong草cao藥yao的de施shi肥fei目mu標biao,不bu僅jin要yao考kao慮lv如ru何he提ti高gao藥yao材cai產chan量liang,同tong時shi應ying注zhu重zhong提ti高gao中zhong草cao藥yao的de藥yao效xiao。為wei了le獲huo得de較jiao高gao的de藥yao材cai量liang和he足zu夠gou的de藥yao效xiao,必bi須xu針zhen對dui藥yao用yong器qi官guan特te性xing在zai施shi肥fei上shang有you所suo區qu別bie。
zhongcaoyaoshifeiyaozaiyoujifeidejichushangshiyongshiliangdehuafei,erzhedepeiheshiyongcaiyouzhuyuchanchuheyaoxiaodezonghetigao。jinnianlaiyixieyanjiubiaoming,danduduoyongyoujifeiyebuwanquanshiheyugezhongyaocaizhiwu,rurenfenniaoyongzairencanhexiyangcanshangrongyiyizhixugendefayu;在黃芪上全部施有機肥的效果不如施專用複合肥的效果好。
在施用有機肥的基礎上化肥的施用原則為:謹慎施用化學氮肥,重視配施化學磷鉀肥,巧施中微量元素肥料。例如,以花和果為藥用器官的中草藥植物,要注重配施磷鉀肥;以(yi)根(gen)和(he)鱗(lin)莖(jing)為(wei)藥(yao)用(yong)器(qi)官(guan)的(de)中(zhong)草(cao)藥(yao)植(zhi)物(wu),要(yao)特(te)別(bie)注(zhu)意(yi)鉀(jia)肥(fei)的(de)施(shi)用(yong)。對(dui)於(yu)各(ge)種(zhong)中(zhong)草(cao)藥(yao)植(zhi)物(wu)的(de)施(shi)肥(fei)來(lai)說(shuo),化(hua)學(xue)氮(dan)肥(fei)的(de)使(shi)用(yong)都(dou)要(yao)特(te)別(bie)謹(jin)慎(shen),過(guo)量(liang)施(shi)氮(dan)會(hui)導(dao)致(zhi)藥(yao)性(xing)降(jiang)低(di)或(huo)者(zhe)徒(tu)長(chang)、爛(lan)根(gen)。由(you)於(yu)中(zhong)草(cao)藥(yao)植(zhi)物(wu)既(ji)要(yao)獲(huo)取(qu)適(shi)量(liang)的(de)藥(yao)材(cai)又(you)要(yao)有(you)較(jiao)高(gao)的(de)藥(yao)效(xiao),根(gen)據(ju)近(jin)代(dai)藥(yao)物(wu)化(hua)學(xue)的(de)研(yan)究(jiu)表(biao)明(ming),藥(yao)物(wu)作(zuo)用(yong)的(de)有(you)效(xiao)成(cheng)分(fen)大(da)都(dou)是(shi)一(yi)些(xie)體(ti)內(nei)次(ci)生(sheng)代(dai)謝(xie)產(chan)物(wu),為(wei)了(le)這(zhe)些(xie)成(cheng)分(fen)的(de)產(chan)出(chu)和(he)作(zuo)用(yong)效(xiao)果(guo),在(zai)施(shi)肥(fei)供(gong)應(ying)上(shang)不(bu)僅(jin)要(yao)保(bao)證(zheng)大(da)量(liang)元(yuan)素(su)還(hai)需(xu)要(yao)微(wei)量(liang)元(yuan)素(su)的(de)參(can)與(yu)。但(dan)很(hen)少(shao)量(liang)的(de)微(wei)量(liang)元(yuan)素(su)肥(fei)料(liao)通(tong)過(guo)土(tu)壤(rang)施(shi)用(yong)時(shi),必(bi)須(xu)先(xian)和(he)大(da)量(liang)有(you)機(ji)肥(fei)摻(chan)混(hun)後(hou)才(cai)可(ke)施(shi)得(de)均(jun)勻(yun)。當(dang)微(wei)量(liang)元(yuan)素(su)肥(fei)料(liao)直(zhi)接(jie)噴(pen)施(shi)時(shi),一(yi)定(ding)要(yao)把(ba)握(wo)肥(fei)液(ye)的(de)適(shi)當(dang)濃(nong)度(du)和(he)使(shi)用(yong)次(ci)數(shu)。這(zhe)樣(yang)才(cai)有(you)預(yu)期(qi)的(de)效(xiao)果(guo)。
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