覆(fu)(fu)蓋(gai)農膜(mo)(mo)是一種(zhong)(zhong)覆(fu)(fu)蓋(gai)于(yu)(yu)(yu)地(di)(di)表(biao)之上的塑(su)料(liao)農膜(mo)(mo)產品(pin),與(yu)地(di)(di)膜(mo)(mo)相似,但(dan)與(yu)地(di)(di)膜(mo)(mo)不同的是,覆(fu)(fu)膜(mo)(mo)是覆(fu)(fu)于(yu)(yu)(yu)農作(zuo)物表(biao)面(mian)的一種(zhong)(zhong)塑(su)料(liao)薄(bo)膜(mo)(mo)產品(pin),地(di)(di)膜(mo)(mo)是覆(fu)(fu)于(yu)(yu)(yu)地(di)(di)表(biao)之上的一種(zhong)(zhong)塑(su)料(liao)薄(bo)膜(mo)(mo)產品(pin)。地(di)(di)膜(mo)(mo)看上去薄(bo)薄(bo)一層,但(dan)作(zuo)用(yong)(yong)相當大。不僅能(neng)夠提高地(di)(di)溫、保(bao)水(shui)、保(bao)土、保(bao)肥提高肥效,而且還(huan)有(you)滅草、防(fang)病蟲、防(fang)旱抗(kang)澇、抑鹽保(bao)苗(miao)、改進(jin)近地(di)(di)面(mian)光熱條件,使產品(pin)衛(wei)生(sheng)清(qing)潔等多(duo)項(xiang)功能(neng)。對于(yu)(yu)(yu)那些剛(gang)出土的幼苗(miao)來說(shuo),具有(you)護(hu)根促長(chang)等作(zuo)用(yong)(yong)。對于(yu)(yu)(yu)我(wo)國(guo)三北(bei)地(di)(di)區(qu)(qu),低溫、少雨、干旱貧脊(ji)、無霜期短(duan)等限制農業發展的因素,具有(you)很(hen)強的針對性和適用(yong)(yong)性,對于(yu)(yu)(yu)種(zhong)(zhong)植二季水(shui)稻(dao)育秧及(ji)多(duo)種(zhong)(zhong)作(zuo)物栽培上也起(qi)了作(zuo)用(yong)(yong)。在全國(guo)31個省市自治區(qu)(qu)普及(ji)和應用(yong)(yong),用(yong)(yong)于(yu)(yu)(yu)糧、棉、油、菜、瓜果、煙(yan)、糖、藥(yao)、麻、茶、林等40多(duo)種(zhong)(zhong)農作(zuo)物上,使作(zuo)物普遍(bian)增產30%-50%,增值40%-60%,深受廣(guang)大農民的歡(huan)迎(ying)。