大棚黃瓜、番茄如何合(he)理施(shi)肥
發布時間:2023-01-27 瀏覽次數:458次
1.根據黃(huang)瓜、番茄(qie)(qie)不(bu)(bu)同生(sheng)育(yu)階段施(shi)肥(fei)黃(huang)瓜、番茄(qie)(qie)幼(you)苗(miao)期要(yao)保(bao)證吸收正常(chang)的養(yang)分,施(shi)肥(fei)量(liang)宜少,濃度(du)(du)要(yao)低;盛(sheng)果期施(shi)肥(fei)量(liang)應大,濃度(du)(du)也要(yao)大一些。有些農民一次用磷酸二銨200公(gong)斤,想通過單用二銨奪取高產量(liang)是(shi)不(bu)(bu)科學的。2.根據土(tu)(tu)壤(rang)情況(kuang)進行施(shi)肥如采用隨(sui)水追肥,用量(liang)(liang)(liang)大小應看土(tu)(tu)壤(rang)情況(kuang)。土(tu)(tu)壤(rang)較干,濃(nong)度(du)要(yao)(yao)低(di),追肥數量(liang)(liang)(liang)要(yao)(yao)多一些。土(tu)(tu)壤(rang)濕潤時(shi),濃(nong)度(du)要(yao)(yao)高些,用肥數量(liang)(liang)(liang)要(yao)(yao)少(shao)。沙性土(tu)(tu)壤(rang)保水保肥能力差,要(yao)(yao)量(liang)(liang)(liang)少(shao)多施(shi)。粘性土(tu)(tu)壤(rang)保水保肥能力強,施(shi)肥次數應少(shao),但每(mei)次的施(shi)肥量(liang)(liang)(liang)要(yao)(yao)多一些。
3.根據天(tian)氣(qi)變化(hua)施(shi)(shi)肥(fei)(fei) 因溫(wen)度會(hui)影響(xiang)根系(xi)對肥(fei)(fei)料濃度的(de)忍耐力,氣(qi)溫(wen)高時(shi)(shi),施(shi)(shi)肥(fei)(fei)濃度要低,否(fou)則易(yi)發生燒根。溫(wen)度低時(shi)(shi)濃度要大些,所(suo)以,應根據天(tian)氣(qi)變化(hua)施(shi)(shi)肥(fei)(fei)。
4.根據不(bu)同肥(fei)料種(zhong)類(lei)采(cai)取不(bu)同的施(shi)肥(fei)方法在追(zhui)(zhui)施(shi)化肥(fei)時,宜(yi)采(cai)取溝施(shi),以便集中肥(fei)效(xiao),追(zhui)(zhui)施(shi)肥(fei)后要及(ji)時覆(fu)土(tu),防止養分揮發降低肥(fei)效(xiao),追(zhui)(zhui)肥(fei)氮素化肥(fei)時應(ying)距離植(zhi)株根莖(jing)10厘米(mi)以外,避免燒根。追(zhui)(zhui)肥(fei)時結合灌(guan)水(shui)可提高(gao)肥(fei)效(xiao)。
一般(ban)黃(huang)瓜(gua)(gua)和番茄的基肥(fei)(fei)(fei)用量(liang)大致相等。一畝大棚黃(huang)瓜(gua)(gua)、番茄的用肥(fei)(fei)(fei)品種及數量(liang)是:可選用腐熟好的圈糞(fen)3000-4000公(gong)(gong)(gong)(gong)(gong)斤(jin)或阿(a)維菌(jun)素(su)(su)(su)有(you)機(ji)肥(fei)(fei)(fei)520-640公(gong)(gong)(gong)(gong)(gong)斤(jin)(用阿(a)維菌(jun)素(su)(su)(su)有(you)機(ji)肥(fei)(fei)(fei)可不再使用雞(ji)糞(fen),一般(ban)40-50公(gong)(gong)(gong)(gong)(gong)斤(jin)阿(a)維菌(jun)素(su)(su)(su)有(you)機(ji)肥(fei)(fei)(fei)可代替500-800公(gong)(gong)(gong)(gong)(gong)斤(jin)雞(ji)糞(fen)),磷酸二銨40公(gong)(gong)(gong)(gong)(gong)斤(jin),純硫(liu)(liu)酸鉀100公(gong)(gong)(gong)(gong)(gong)斤(jin),尿(niao)素(su)(su)(su)30公(gong)(gong)(gong)(gong)(gong)斤(jin),印度鈣肥(fei)(fei)(fei)4公(gong)(gong)(gong)(gong)(gong)斤(jin),硼砂(sha)3公(gong)(gong)(gong)(gong)(gong)斤(jin),硫(liu)(liu)酸鋅1.5公(gong)(gong)(gong)(gong)(gong)斤(jin),微生物菌(jun)劑(ji)40公(gong)(gong)(gong)(gong)(gong)斤(jin)。把以(yi)上肥(fei)(fei)(fei)料撒入地表面深翻。微生物菌(jun)劑(ji)可采取(qu)溝施、穴施的方(fang)法,在移栽(zai)時進行集中使用。
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