溫室(shi)大棚對農業生產(chan)的作用

1、降(jiang)低(di)棚內的(de)(de)濕度，不(bu)會降(jiang)低(di)地(di)溫(wen)。大棚使(shi)用滴灌(guan)澆(jiao)(jiao)水時由(you)于是局部直接濕潤作物(wu)，所以(yi)不(bu)會形成大水漫灌(guan)時的(de)(de)地(di)表徑(jing)流，從而(er)可以(yi)降(jiang)低(di)棚內的(de)(de)濕度，同(tong)時由(you)于用滴灌(guan)澆(jiao)(jiao)水是在相同(tong)時間里把水均勻的(de)(de)輸送到作物(wu)的(de)(de)根部，不(bu)會引起地(di)溫(wen)下降(jiang)，可有效的(de)(de)保(bao)持地(di)溫(wen)

2、降(jiang)(jiang)低(di)棚內(nei)病(bing)蟲(chong)害(hai)，減少用(yong)(yong)藥量。大(da)棚內(nei)的(de)(de)多(duo)種(zhong)病(bing)害(hai)主要是由于濕(shi)度過大(da)引(yin)起(qi)的(de)(de)，使用(yong)(yong)滴(di)灌澆水可降(jiang)(jiang)低(di)棚內(nei)的(de)(de)濕(shi)度，因而也就(jiu)降(jiang)(jiang)低(di)了病(bing)害(hai)的(de)(de)發生(sheng)機率，減少了病(bing)害(hai)發生(sheng)的(de)(de)條件，也相(xiang)應的(de)(de)減少了用(yong)(yong)藥量。

3、提高(gao)肥(fei)(fei)料(liao)(liao)的(de)利用率，降(jiang)低施肥(fei)(fei)量(liang)。大棚使用滴灌可(ke)以直接把作(zuo)物(wu)所需要的(de)肥(fei)(fei)料(liao)(liao)隨水(shui)(shui)(shui)均(jun)勻地輸送到植(zhi)物(wu)的(de)根部(bu)，因而不(bu)會造成大水(shui)(shui)(shui)浸灌那樣水(shui)(shui)(shui)肥(fei)(fei)不(bu)均(jun)，浪費肥(fei)(fei)料(liao)(liao)。使用滴灌可(ke)以節肥(fei)(fei)40%-50%，節水(shui)(shui)(shui)50%左右。

溫室工程的結構用管

1、熱浸鋅(xin)(xin)鋼(gang)管(guan)(guan)(guan)結構：熱鍍(du)(du)(du)鋅(xin)(xin)管(guan)(guan)(guan)是使熔融(rong)金(jin)屬與(yu)鐵基體反(fan)應而產生合(he)金(jin)層(ceng)(ceng)(ceng)，從(cong)而使基體和(he)鍍(du)(du)(du)層(ceng)(ceng)(ceng)二者相結合(he)。天(tian)津市飛(fei)龍制管(guan)(guan)(guan)有(you)(you)限公司(si)供應的熱鍍(du)(du)(du)鋅(xin)(xin)管(guan)(guan)(guan)是先(xian)將鋼(gang)管(guan)(guan)(guan)進行(xing)(xing)酸洗(xi)，為了(le)去除鋼(gang)管(guan)(guan)(guan)表(biao)面的氧(yang)化鐵，酸洗(xi)后，通過氯化銨或氯化鋅(xin)(xin)水溶(rong)液(ye)或氯化銨和(he)氯化鋅(xin)(xin)混合(he)水溶(rong)液(ye)槽(cao)中(zhong)進行(xing)(xing)清洗(xi)，然后送入熱浸鍍(du)(du)(du)槽(cao)中(zhong)。熱鍍(du)(du)(du)鋅(xin)(xin)具有(you)(you)鍍(du)(du)(du)層(ceng)(ceng)(ceng)均勻，附(fu)著力(li)強，溫室工程每平(ping)方多少錢，使用壽命長(chang)等優點。熱鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)管(guan)(guan)(guan)基體與(yu)熔融(rong)的鍍(du)(du)(du)液(ye)發(fa)生復雜的物理、化學反(fan)應，溫室工程建設，形成(cheng)耐腐蝕的結構緊(jin)密的鋅(xin)(xin)一鐵合(he)金(jin)層(ceng)(ceng)(ceng)。合(he)金(jin)層(ceng)(ceng)(ceng)與(yu)純鋅(xin)(xin)層(ceng)(ceng)(ceng)、鋼(gang)管(guan)(guan)(guan)基體融(rong)為一體。故其耐腐蝕能(neng)力(li)強。

2、鍍(du)(du)鋅(xin)(xin)帶(dai)管(guan)(guan)結構(gou)：鍍(du)(du)鋅(xin)(xin)帶(dai)管(guan)(guan)把生(sheng)產(chan)熱鍍(du)(du)鋅(xin)(xin)管(guan)(guan)的生(sheng)產(chan)工藝做了(le)調整(zheng)。先對其制(zhi)管(guan)(guan)用的帶(dai)鋼進(jin)行酸洗，為了(le)去除帶(dai)鋼表面(mian)的氧化鐵。然后(hou)風干(gan)，再制(zhi)成管(guan)(guan)。具有鍍(du)(du)層(ceng)均勻、光亮，鍍(du)(du)鋅(xin)(xin)量很少，溫(wen)室工程技(ji)術，比生(sheng)產(chan)熱鍍(du)(du)鋅(xin)(xin)管(guan)(guan)的成本低。其耐腐蝕能力(li)比熱鍍(du)(du)鋅(xin)(xin)管(guan)(guan)稍差！

溫室大(da)棚(peng)智能控制(zhi)系(xi)統

是(shi)一種(zhong)智(zhi)能(neng)化(hua)管理大(da)棚的科學系統(tong)，這種(zhong)系統(tong)需要相(xiang)應的感(gan)應設(she)備來保(bao)證(zheng)系統(tong)的正常運(yun)行(xing)，溫(wen)(wen)室工(gong)(gong)(gong)程，智(zhi)能(neng)控制系統(tong)是(shi)將信息技術(shu)運(yun)用(yong)到農(nong)業(ye)的體(ti)現(xian)，通(tong)過(guo)系統(tong)設(she)定的各種(zhong)指令，自(zi)動化(hua)的完成管理工(gong)(gong)(gong)作，無需大(da)量的人工(gong)(gong)(gong)操(cao)作，是(shi)一種(zhong)現(xian)代化(hua)農(nong)業(ye)發展的必要工(gong)(gong)(gong)具。溫(wen)(wen)濕(shi)度(du)傳感(gan)器(qi)收(shou)集(ji)數據，STC89C52單片機進(jin)行(xing)數據處理，LCD1602顯(xian)示模(mo)(mo)塊顯(xian)示溫(wen)(wen)濕(shi)度(du)。由PWM控制溫(wen)(wen)度(du)調(diao)節模(mo)(mo)塊進(jin)行(xing)溫(wen)(wen)度(du)調(diao)節，當(dang)溫(wen)(wen)度(du)小于(yu)18℃時(shi)，M4QA045電機停止運(yun)轉，當(dang)溫(wen)(wen)室大(da)于(yu)28℃時(shi)，M4QA045電機全速運(yun)轉，當(dang)溫(wen)(wen)度(du)處于(yu)18℃和(he)28℃之間時(shi)，通(tong)過(guo)PWM控制M4QA045電機轉速。