土豆覆(fu)膜(mo)壟作栽培(pei)有兩種(zhong)(zhong)方(fang)式，一是將膜(mo)覆(fu)在壟上，在壟上播種(zhong)(zhong)，這一類(lei)符合高(gao)寒陰濕區春季土壤低溫高(gao)濕的情況。另一種(zhong)(zhong)是膜(mo)覆(fu)于壟上，溝中種(zhong)(zhong)植，有利(li)于旱農地區集(ji)水抗旱。還有一種(zhong)(zhong)是不起壟，平覆(fu)地膜(mo)，播種(zhong)(zhong)穴做到“雞蛋”狀，以利(li)于膜(mo)上雨(yu)(yu)水集(ji)中，形成一個(ge)微型雨(yu)(yu)面，澆(jiao)灌薯苗。既有集(ji)雨(yu)(yu)抗時功能(neng)，又不降低地膜(mo)保(bao)(bao)溫保(bao)(bao)墑效(xiao)果。

近(jin)年來，由(you)于(yu)增(zeng)產效果明(ming)顯，地膜(mo)覆蓋技術在中(zhong)國農(nong)(nong)業(ye)生產中(zhong)迅速普(pu)及。然而，一(yi)(yi)些(xie)農(nong)(nong)業(ye)生態專(zhuan)家指出(chu)，殘膜(mo)的“白色(se)污染(ran)”已經超過了當地農(nong)(nong)田生態環境所(suo)能(neng)承受的上限(xian)，如不加快治理(li)和防范，農(nong)(nong)田生態將進(jin)一(yi)(yi)步惡化。一(yi)(yi)些(xie)業(ye)內人士(shi)對全(quan)生物降(jiang)解農(nong)(nong)用(yong)地膜(mo)寄予厚望(wang)，表示加快全(quan)生物降(jiang)解農(nong)(nong)用(yong)地膜(mo)全(quan)國推廣(guang)有助于(yu)破(po)解“白色(se)污染(ran)”難題。

大連地膜打孔機據(ju)加(jia)(jia)工(gong)(gong)(gong)的(de)尺寸大小，加(jia)(jia)工(gong)(gong)(gong)孔(kong)(kong)(kong)的(de)數(shu)量，加(jia)(jia)工(gong)(gong)(gong)孔(kong)(kong)(kong)的(de)尺寸，加(jia)(jia)工(gong)(gong)(gong)孔(kong)(kong)(kong)位置數(shu)據(ju)等(deng)制作固定(ding)(ding)夾(jia)具。把夾(jia)具和(he)自動(dong)轉盤(pan)緊(jin)固。在控制電(dian)腦內設(she)定(ding)(ding)好加(jia)(jia)工(gong)(gong)(gong)數(shu)據(ju)。把需加(jia)(jia)工(gong)(gong)(gong)的(de)材料固定(ding)(ding)在自動(dong)轉盤(pan)上。啟(qi)動(dong)機(ji)器，機(ji)器根(gen)據(ju)電(dian)腦指令(ling)和(he)加(jia)(jia)工(gong)(gong)(gong)數(shu)據(ju)一次性完成打孔(kong)(kong)(kong)、鉆孔(kong)(kong)(kong)、銑孔(kong)(kong)(kong)、通孔(kong)(kong)(kong)、盲(mang)孔(kong)(kong)(kong)、多(duo)孔(kong)(kong)(kong)、高(gao)低孔(kong)(kong)(kong)等(deng)加(jia)(jia)工(gong)(gong)(gong)程序。

地膜打孔機介紹說，地(di)膜(mo)覆(fu)(fu)蓋(gai)栽培是在(zai)50年代隨著農用塑料薄膜(mo)的(de)(de)(de)產生(sheng)而興起的(de)(de)(de)一項先(xian)進農藝。地(di)膜(mo)覆(fu)(fu)蓋(gai)不(bu)僅可以提高(gao)地(di)溫、阻止(zhi)土(tu)壤(rang)水分(fen)蒸發，還能防止(zhi)雨水沖(chong)刷和土(tu)壤(rang)板結，使土(tu)壤(rang)保(bao)持(chi)疏松(song)狀(zhuang)態(tai)。這既有(you)利于作物根系的(de)(de)(de)發育和深(shen)扎，又為(wei)好氣性微生(sheng)物創造了適宜(yi)的(de)(de)(de)環境，從而促進土(tu)壤(rang)中的(de)(de)(de)有(you)機物和腐植質分(fen)解，為(wei)農作物豐產提供良好的(de)(de)(de)基礎(chu)，這也是地(di)膜(mo)覆(fu)(fu)蓋(gai)能增產的(de)(de)(de)主要原因。