馬鈴薯(shu)是(shi)陜西省定邊縣傳統(tong)的(de)糧(liang)菜兼用作物，也是(shi)全縣第一大宗農作物，種植歷史悠(you)久。馬鈴薯(shu)地(di)下塊莖(jing)呈圓、卵、橢圓等形，有芽(ya)眼，皮紅、黃、白或紫(zi)色(se)。地(di)上莖(jing)呈棱形，有毛，奇數羽狀復葉。聚傘花序頂生(sheng)，花白、紅或紫(zi)色(se)；漿果球形，綠(lv)或紫(zi)褐色(se)；種子(zi)腎形，黃色(se)。多用塊莖(jing)繁殖(zhi)，可入藥。
簡介
馬(ma)(ma)鈴(ling)(ling)(ling)薯(shu)是(shi)陜(shan)西(xi)省(sheng)定(ding)邊縣傳統(tong)的糧菜兼用(yong)作(zuo)物，也是(shi)全縣第(di)一大宗農(nong)(nong)(nong)作(zuo)物，種植歷史悠久。定(ding)邊縣委、縣政府(fu)按照(zhao)“特色農(nong)(nong)(nong)業富民(min)、馬(ma)(ma)鈴(ling)(ling)(ling)薯(shu)經濟引領”的戰略思路(lu)，抓住馬(ma)(ma)鈴(ling)(ling)(ling)薯(shu)產(chan)(chan)業不(bu)放松(song)，不(bu)斷(duan)優化種植布(bu)局，積極調整品種結構，加(jia)強優質薯(shu)推廣，穩步推進(jin)產(chan)(chan)業化開發，使馬(ma)(ma)鈴(ling)(ling)(ling)薯(shu)產(chan)(chan)業成(cheng)為帶動全縣近28萬農(nong)(nong)(nong)民(min)實現致富奔小(xiao)康最具優勢潛力的主導產(chan)(chan)業，2007年定(ding)邊縣被(bei)農(nong)(nong)(nong)業部命名為“中國馬(ma)(ma)鈴(ling)(ling)(ling)薯(shu)特產(chan)(chan)之鄉”、獲(huo)陜(shan)西(xi)省(sheng)無公(gong)害農(nong)(nong)(nong)產(chan)(chan)品生產(chan)(chan)基地及(ji)產(chan)(chan)品認證，“定(ding)邊洋芋”被(bei)國家(jia)工(gong)商總局注冊受(shou)地理標(biao)志保護.
種植規模
種(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)基(ji)地規模大(da)，產(chan)量高。馬鈴(ling)(ling)薯是定邊縣(xian)(xian)栽培面(mian)積(ji)最大(da)、分布(bu)范圍最廣的(de)(de)農作物。截至2006年種(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面(mian)積(ji)達(da)100萬(wan)畝，總產(chan)鮮薯105萬(wan)噸，規模連片種(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)基(ji)地在萬(wan)畝以上(shang)的(de)(de)鄉鎮有18個(ge)，4萬(wan)畝以上(shang)的(de)(de)鄉鎮有8個(ge)，100畝以上(shang)的(de)(de)專業(ye)種(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)大(da)戶有3000戶，全(quan)縣(xian)(xian)農民人均達(da)3.5畝，占到(dao)全(quan)縣(xian)(xian)農作物種(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面(mian)積(ji)的(de)(de)56%。定邊縣(xian)(xian)馬鈴(ling)(ling)薯種(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面(mian)積(ji)是榆林市的(de)(de)三分之(zhi)一、陜西省(sheng)的(de)(de)五(wu)分之(zhi)一和全(quan)國的(de)(de)七十(shi)分之(zhi)一，成為陜西省(sheng)馬鈴(ling)(ling)薯生產(chan)第一大(da)縣(xian)(xian)，在全(quan)國位(wei)居前列。
地理優勢
自(zi)然(ran)地(di)理(li)資源優勢強(qiang)，產(chan)品品質(zhi)優。定邊(bian)縣海拔高(gao)、氣候冷涼、光照充(chong)足、雨(yu)熱同季(ji)、晝夜溫差大(da)(da)、加之土(tu)地(di)廣闊、土(tu)層深厚(hou)、土(tu)質(zhi)疏松宜耕，為馬(ma)(ma)鈴(ling)薯(shu)(shu)生長發育(yu)創(chuang)造了(le)得天(tian)獨厚(hou)的自(zi)然(ran)地(di)理(li)氣候環境(jing)，是全國馬(ma)(ma)鈴(ling)薯(shu)(shu)最佳優生區(qu)之一(yi)(yi)。全縣已建成脫毒(du)微型薯(shu)(shu)原種擴繁基地(di)2000畝(mu)，一(yi)(yi)級種薯(shu)(shu)擴繁基地(di)3萬畝(mu)，主推品種有(you)紫花白、費烏瑞(rui)它、隴薯(shu)(shu)3號、大(da)(da)西洋、夏坡(po)蒂、新大(da)(da)坪、早大(da)(da)白等，優質(zhi)薯(shu)(shu)年推廣面積(ji)達(da)60萬畝(mu)。定邊(bian)種薯(shu)(shu)退化慢、病蟲害(hai)少、產(chan)量(liang)(liang)高(gao)、質(zhi)量(liang)(liang)好(hao)，旱地(di)一(yi)(yi)般(ban)畝(mu)產(chan)1500公(gong)(gong)斤左右，水地(di)畝(mu)產(chan)可達(da)3000-公(gong)(gong)斤左右。定邊(bian)商(shang)品薯(shu)(shu)個大(da)(da)、形圓、光澤度好(hao)、無(wu)(wu)污染、無(wu)(wu)畸(ji)形、耐儲運、淀粉含量(liang)(liang)高(gao)（16-23%）、鮮(xian)(xian)食口感極佳、加工產(chan)品色(se)(se)澤鮮(xian)(xian)亮、鮮(xian)(xian)食加工兼用(yong)，是天(tian)然(ran)的無(wu)(wu)公(gong)(gong)害(hai)綠色(se)(se)食品。
馬鈴薯文化節
定(ding)邊(bian)縣種(zhong)(zhong)植馬鈴薯(shu)(shu)(shu)有近400多(duo)年的歷史，在當地形(xing)成了獨(du)特(te)(te)的馬鈴薯(shu)(shu)(shu)文(wen)(wen)化(hua)(hua)(hua)。這(zhe)種(zhong)(zhong)文(wen)(wen)化(hua)(hua)(hua)是(shi)黃土文(wen)(wen)化(hua)(hua)(hua)、草原文(wen)(wen)化(hua)(hua)(hua)、三(san)邊(bian)文(wen)(wen)化(hua)(hua)(hua)的交(jiao)(jiao)相輝映，歷史悠久，積淀深邃(sui)。2007年“首屆(jie)中(zhong)國定(ding)邊(bian)馬鈴薯(shu)(shu)(shu)文(wen)(wen)化(hua)(hua)(hua)節”的隆重(zhong)舉(ju)行，吸引(yin)來國內(nei)外1000多(duo)位(wei)客(ke)商和數萬群(qun)眾一(yi)起品嘗(chang)定(ding)邊(bian)豐富的馬鈴薯(shu)(shu)(shu)特(te)(te)色食品，享(xiang)受文(wen)(wen)化(hua)(hua)(hua)大宴，開展多(duo)層次經(jing)濟技術(shu)交(jiao)(jiao)流(liu)。通(tong)過“文(wen)(wen)化(hua)(hua)(hua)搭(da)臺、馬鈴薯(shu)(shu)(shu)唱戲”這(zhe)種(zhong)(zhong)有效(xiao)形(xing)式(shi)，向世界叫響“定(ding)邊(bian)馬鈴薯(shu)(shu)(shu)”品牌。
一笑易歡 
