馬(ma)鈴(ling)薯(shu)塊莖水分多(duo)、脂肪少、單位(wei)體積的(de)(de)(de)熱(re)量相當低(di)(di)，所含的(de)(de)(de)維(wei)生素C是(shi)(shi)蘋果(guo)的(de)(de)(de)4倍左右，B族維(wei)生素是(shi)(shi)蘋果(guo)的(de)(de)(de)4倍，各種(zhong)礦物(wu)質是(shi)(shi)蘋果(guo)的(de)(de)(de)幾倍至(zhi)幾十倍不等，馬(ma)鈴(ling)薯(shu)是(shi)(shi)降血(xue)壓食(shi)物(wu)，膳食(shi)中某種(zhong)營養多(duo)了(le)或(huo)缺(que)了(le)可致(zhi)病。同樣(yang)道理，調整膳食(shi)，也就可以(yi)“吃(chi)”掉相應疾(ji)病。馬(ma)鈴(ling)薯(shu)越冬防治低(di)(di)溫冷害措施有哪些(xie)呢(ni)，下(xia)面(mian)一起來看一下(xia)。

低溫(wen)冷害(hai)(hai)是冬(dong)春馬鈴薯(shu)生(sheng)(sheng)產上(shang)(shang)最主要氣象(xiang)災害(hai)(hai)，其(qi)主要防(fang)范方法有：（1）覆(fu)(fu)土防(fang)凍(dong)(dong)(dong)(dong)(dong)(dong)防(fang)霜。低溫(wen)冰(bing)凍(dong)(dong)(dong)(dong)(dong)(dong)、霜凍(dong)(dong)(dong)(dong)(dong)(dong)到來前(qian)(qian)，提早加深畦溝(gou)和四周排水溝(gou)，把溝(gou)土均(jun)勻覆(fu)(fu)蓋在(zai)(zai)稻草或(huo)(huo)(huo)地膜面上(shang)(shang)。（2）排水提溫(wen)保苗。在(zai)(zai)冰(bing)凍(dong)(dong)(dong)(dong)(dong)(dong)發生(sheng)(sheng)前(qian)(qian)或(huo)(huo)(huo)發生(sheng)(sheng)期間(jian)，排干田間(jian)漬水，提高土壤地溫(wen)，防(fang)止冰(bing)凍(dong)(dong)(dong)(dong)(dong)(dong)對幼苗造成(cheng)的(de)危害(hai)(hai)。（3）覆(fu)(fu)蓋防(fang)寒(han)保暖。凍(dong)(dong)(dong)(dong)(dong)(dong)害(hai)(hai)或(huo)(huo)(huo)霜凍(dong)(dong)(dong)(dong)(dong)(dong)發生(sheng)(sheng)前(qian)(qian)，用(yong)農膜、稻草、彩條布、草簾、席子、麻袋(dai)等遮蓋物(wu)覆(fu)(fu)蓋在(zai)(zai)幼苗上(shang)(shang)或(huo)(huo)(huo)搭建小(xiao)拱棚防(fang)凍(dong)(dong)(dong)(dong)(dong)(dong)防(fang)霜保暖保苗。（4）施(shi)肥抗(kang)(kang)凍(dong)(dong)(dong)(dong)(dong)(dong)抗(kang)(kang)寒(han)。在(zai)(zai)低溫(wen)冷害(hai)(hai)到來前(qian)(qian)1－2天(tian)，噴施(shi)植物(wu)防(fang)凍(dong)(dong)(dong)(dong)(dong)(dong)劑或(huo)(huo)(huo)施(shi)用(yong)復合(he)生(sheng)(sheng)物(wu)菌肥可起到一定(ding)的(de)抗(kang)(kang)凍(dong)(dong)(dong)(dong)(dong)(dong)抗(kang)(kang)寒(han)作用(yong)。（5）災后(hou)(hou)追肥促(cu)長。冷害(hai)(hai)過(guo)后(hou)(hou)，每(mei)畝用(yong)尿素3兩、磷酸二(er)氫鉀4兩、紅糖5兩或(huo)(huo)(huo)其(qi)他葉(xie)面肥兌水50公斤噴施(shi)，促(cu)進植株恢復生(sheng)(sheng)長。