懸(xuan)(xuan)(xuan)浮(fu)劑宜作 莖、葉噴灑，由(you)于這種劑型的(de)(de)(de)粉碎(sui)細(xi)度(du)高、懸(xuan)(xuan)(xuan)浮(fu)性狀好(hao)、黏著力 強(qiang)，因此作葉面噴灑時比(bi)可(ke)濕(shi)性效(xiao)果好(hao)。微(wei)囊(nang)(nang)懸(xuan)(xuan)(xuan)浮(fu)劑的(de)(de)(de)合成(cheng)工藝，農藥微(wei)囊(nang)(nang)懸(xuan)(xuan)(xuan)浮(fu)劑的(de)(de)(de)制(zhi)備方法(fa)(fa)目前大致可(ke)分為(wei)化學成(cheng)囊(nang)(nang)法(fa)(fa)、物理成(cheng)囊(nang)(nang)法(fa)(fa)以及物理化學成(cheng)囊(nang)(nang)法(fa)(fa)。微(wei)囊(nang)(nang)懸(xuan)(xuan)(xuan)浮(fu)劑噴灑時，稀釋后的(de)(de)(de)懸(xuan)(xuan)(xuan)浮(fu)液能將有(you)效(xiao)成(cheng)分均勻(yun)、準(zhun)確地施用于作物上，這對有(you)效(xiao)控制(zhi)害蟲(chong)至關重要。

有(you)利于農(nong)(nong)(nong)(nong)藥(yao)(yao)(yao)(yao)(yao)有(you)效成(cheng)分的化學穩(wen)定(ding)性(xing)。而且微囊(nang)懸浮(fu)劑(ji)藥(yao)(yao)(yao)(yao)(yao)劑(ji)不能從這(zhe)片(pian)葉輸送到(dao)(dao)另一片(pian)葉中(zhong)去，施藥(yao)(yao)(yao)(yao)(yao)時一定(ding)要(yao)求噴得周到(dao)(dao)。微農(nong)(nong)(nong)(nong)藥(yao)(yao)(yao)(yao)(yao)懸浮(fu)劑(ji)是指利用(yong)(yong)(yong)合成(cheng)或者天然的高分子材(cai)料形(xing)成(cheng)核—殼結構微小容器，將(jiang)農(nong)(nong)(nong)(nong)藥(yao)(yao)(yao)(yao)(yao)包(bao)覆其中(zhong)，并(bing)懸浮(fu)在水中(zhong)的農(nong)(nong)(nong)(nong)藥(yao)(yao)(yao)(yao)(yao)劑(ji)型。有(you)效成(cheng)分與(yu)水及堿性(xing)農(nong)(nong)(nong)(nong)藥(yao)(yao)(yao)(yao)(yao)隔(ge)離，與(yu)堿性(xing)農(nong)(nong)(nong)(nong)藥(yao)(yao)(yao)(yao)(yao)同時使用(yong)(yong)(yong)，噻蟲嗪微囊(nang)懸浮(fu)劑(ji)，其穩(wen)定(ding)性(xing)不受影響(xiang)；減少用(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)次數和用(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)量，有(you)利于省工、節約資源(yuan)

微(wei)囊懸(xuan)浮(fu)劑(ji)具有(you)緩釋作(zuo)用，持(chi)(chi)藥(yao)(yao)期長。一(yi)部(bu)分(fen)被(bei)(bei)種子吸水發(fa)芽過程中(zhong)直接吸收(shou)，另(ling)一(yi)部(bu)分(fen)則(ze)被(bei)(bei)土壤吸收(shou)。把制成(cheng)很小(xiao)的微(wei)型球粒，即為微(wei)，再把這種微(wei)型配加適當的助劑(ji)和填料，使其分(fen)散懸(xuan)浮(fu)在水中(zhong)，即可加工(gong)成(cheng)為微(wei)囊懸(xuan)浮(fu)劑(ji)。微(wei)懸(xuan)浮(fu)劑(ji)農藥(yao)(yao)的特點：持(chi)(chi)效期長，施藥(yao)(yao)后(hou)農藥(yao)(yao)成(cheng)分(fen)緩慢釋放，地(di)下施藥(yao)(yao)可維持(chi)(chi)80-120天。接觸毒性(xing)和異味大大降低，大大減輕了對作(zuo)業(ye)者(zhe)的危害。