榆中(zhong)縣南部二陰地區氣候冷涼濕潤,生產蔬菜病蟲害輕,農(nong)藥污染輕,具(ju)有生產無(wu)公害大白(bai)菜得天獨厚(hou)的自然生態環境條件(jian)。榆中(zhong)大白(bai)菜具(ju)有葉球炮彈形、合抱、葉幫潔白(bai)、外(wai)葉深綠(lv)、中(zhong)柱短、口感佳(jia)的特點。
榆(yu)中(zhong)大(da)白菜產(chan)區(qu)(qu)地(di)(di)(di)(di)處黃土(tu)(tu)高(gao)(gao)原(yuan)(yuan)、內(nei)蒙古高(gao)(gao)原(yuan)(yuan)、青藏高(gao)(gao)原(yuan)(yuan)交匯處的黃土(tu)(tu)高(gao)(gao)原(yuan)(yuan),甘肅(su)省(sheng)中(zhong)部,屬蘭州(zhou)市三縣(xian)五區(qu)(qu)之一,在蘭州(zhou)東(dong)郊,縣(xian)城(cheng)距蘭州(zhou)38公(gong)里(li)(li),地(di)(di)(di)(di)跨東(dong)經103°49′15"—104°34′40",北(bei)緯35°34′20"—36°26′30"之間,縣(xian)境內(nei)南(nan)北(bei)長(chang)96.6公(gong)里(li)(li),東(dong)西(xi)(xi)寬(kuan)66.4公(gong)里(li)(li),總面積(ji)3301.64平方公(gong)里(li)(li),海(hai)拔高(gao)(gao)度1480—3670米(mi)之間。東(dong)接定西(xi)(xi)、會寧、靖遠縣(xian),西(xi)(xi)以(yi)馬銜山為界與臨洮毗鄰(lin),西(xi)(xi)靠七里(li)(li)河(he)區(qu)(qu)、城(cheng)關區(qu)(qu),北(bei)隔(ge)黃河(he)與皋(gao)蘭縣(xian)、白銀(yin)市相望(wang)。全(quan)縣(xian)轄8鎮15鄉,268個(ge)行政(zheng)村(cun),1619個(ge)村(cun)民小組,共(gong)有(you)(you)42.6萬(wan)(wan)(wan)人,其中(zhong)農業人口38.8萬(wan)(wan)(wan)人。有(you)(you)漢、回(hui)、滿、東(dong)鄉、撒拉(la)等(deng)13個(ge)民族,漢族占99%,耕地(di)(di)(di)(di)面積(ji)106萬(wan)(wan)(wan)畝(mu),其中(zhong)水(shui)澆地(di)(di)(di)(di)36萬(wan)(wan)(wan)畝(mu),保(bao)灌面積(ji)28萬(wan)(wan)(wan)畝(mu),山旱地(di)(di)(di)(di)70萬(wan)(wan)(wan)畝(mu),占耕地(di)(di)(di)(di)面積(ji)的66%。榆(yu)中(zhong)縣(xian)地(di)(di)(di)(di)勢較高(gao)(gao),地(di)(di)(di)(di)勢北(bei)高(gao)(gao)南(nan)低,西(xi)(xi)高(gao)(gao)東(dong)低,土(tu)(tu)壤深厚(hou)肥沃,屬半干旱、半濕潤(run)氣候區(qu)(qu),河(he)谷地(di)(di)(di)(di)區(qu)(qu)水(shui)源(yuan)主要是境內(nei)的地(di)(di)(di)(di)表(biao)水(shui)和地(di)(di)(di)(di)下(xia)水(shui),全(quan)縣(xian)從事(shi)蔬菜栽培的農戶有(you)(you)6萬(wan)(wan)(wan)多戶,川塬地(di)(di)(di)(di)區(qu)(qu)主要以(yi)地(di)(di)(di)(di)下(xia)水(shui)資源(yuan)為主,區(qu)(qu)域內(nei)無工業污染,為天(tian)然綠色食品(pin)生產(chan)區(qu)(qu)。目前大(da)白菜栽培面積(ji)2萬(wan)(wan)(wan)畝(mu),年產(chan)量8萬(wan)(wan)(wan)噸,至(zhi)2010年規劃面積(ji)發展達到2.5萬(wan)(wan)(wan)畝(mu),年產(chan)榆(yu)中(zhong)大(da)白菜10萬(wan)(wan)(wan)噸。