大棚灌溉過程中存在的多個問題及解決方法
大棚灌溉過程中存在的多個問題及解決方法
大da棚peng為wei封feng閉bi栽zai培pei,土tu壤rang水shui分fen蒸zheng發fa和he下xia滲shen都dou相xiang對dui露lu地di需xu水shui量liang少shao的de多duo,大da棚peng內nei並bing不bu需xu要yao過guo多duo的de水shui分fen,澆jiao水shui過guo多duo會hui使shi土tu壤rang空kong氣qi減jian少shao,影ying響xiang土tu壤rang中zhong水shui肥fei氣qi熱re的de協xie調tiao。因yin而er在zai種zhong植zhi的de過guo程cheng中zhong使shi用yong土壤墒情與旱情監測係統laijinxingduidapengzhiwuxushuiliangjinxingceliangyijikongzhideshihou,yaojiehedapengdexushuitexinglaijinxingguangai,erzaidapengdeguangaiguochengzhongchuleweikaolvdapengzhongdeturangtexingzhiwai,yijiucunzaihenduowenti,zhijieyingxiangdaoturangshuifendeliyonglvyijishuiziyuandeheliliyong。tongguochangjiuleijibingjinxingtongjifaxianzaiguangaideguochengzhongcunzaiyixialianggewenti。
灌溉時間以及天氣未能進行正確的選擇:正確的選擇灌溉時間以及天氣能夠保證蔬菜的需水的同時,還能夠避免對蔬菜的損傷。陰雨天、寒流前澆水。陰雨天、寒(han)流(liu)前(qian)光(guang)熱(re)不(bu)足(zu),氣(qi)溫(wen)和(he)地(di)溫(wen)都(dou)相(xiang)對(dui)較(jiao)低(di),澆(jiao)水(shui)後(hou)使(shi)本(ben)來(lai)很(hen)難(nan)提(ti)高(gao)的(de)地(di)溫(wen)和(he)棚(peng)溫(wen)會(hui)繼(ji)續(xu)下(xia)降(jiang)。灌(guan)溉(gai)的(de)時(shi)間(jian)最(zui)好(hao)是(shi)早(zao)上(shang),中(zhong)午(wu)水(shui)溫(wen)難(nan)與(yu)地(di)溫(wen)進(jin)行(xing)控(kong)製(zhi),對(dui)蔬(shu)菜(cai)傷(shang)害(hai)比(bi)較(jiao)大(da)。下(xia)午(wu)和(he)傍(bang)晚(wan)澆(jiao)水(shui),不(bu)利(li)通(tong)風(feng)散(san)濕(shi),容(rong)易(yi)感(gan)染(ran)病(bing)害(hai)。
每(mei)日(ri)進(jin)行(xing)定(ding)量(liang)定(ding)時(shi)的(de)灌(guan)溉(gai)。這(zhe)一(yi)點(dian)主(zhu)要(yao)是(shi)表(biao)現(xian)在(zai)為(wei)能(neng)與(yu)蔬(shu)菜(cai)的(de)長(chang)勢(shi)進(jin)行(xing)相(xiang)結(jie)合(he),蔬(shu)菜(cai)在(zai)不(bu)同(tong)的(de)生(sheng)長(chang)時(shi)期(qi)對(dui)於(yu)土(tu)壤(rang)水(shui)分(fen)的(de)需(xu)求(qiu)均(jun)是(shi)存(cun)在(zai)差(cha)異(yi)性(xing)的(de),每(mei)日(ri)定(ding)量(liang)的(de)灌(guan)溉(gai)對(dui)於(yu)蔬(shu)菜(cai)某(mou)些(xie)時(shi)期(qi)而(er)言(yan),容(rong)易(yi)導(dao)致(zhi)水(shui)分(fen)過(guo)多(duo)出(chu)現(xian)爛(lan)根(gen)的(de)狀(zhuang)態(tai)。因(yin)此(ci)在(zai)灌(guan)溉(gai)的(de)時(shi)候(hou)可(ke)以(yi)使(shi)用(yong)無線墒情監測係統進行了解土壤水分情況的基礎上進行灌溉,這樣能夠保證蔬菜的正常的生長,同時做到節水的效果



