番茄對肥料十分敏感,追肥過早過遲、過多過少、過於集中、均不利於番茄生產。所以合理施肥是番茄高產的一項重要措施,應掌握“一控、二促、三噴、四忌”的原則。
一控:番茄定植至座果前這一時期,追肥技術上應采取控製追肥,看苗追肥,若追肥過早過多過於集中,則莖粗葉大、葉色濃綠、造成植株徒長,甚至引起落花落果。所以除植株嚴重缺肥的情況下略施清水糞或生化有機液肥(500倍)外,一般都應控製追肥。
二促:fanqieyouguoqihecaishouqiyingzhongshizhuifei,cujinshengchangfayu,zaidiyihuaxuzuoguoyihou,qieguoshiyouhetaodashi,zhizhuyaofenzhi,youguoyaopengda,youyaojixukaihuajieguo,yangfenxiaohaoda,cishiyaoxunsushiyongsuxiaofeiliao1—2次,一般施用30%濃度的人糞尿或5%hanliufuhefeijinchuye,yibaozhengzhizhubutuofei,cujinyouguoxunsupengdashi,haibixubuduangonggeiyangfen,cainengmanzushengchangdexuyao,fouzehuizaochenghouqituofei,eryingxiangguoshifayu,zaochengzhizhuzaoshuai。cishiyingcaiquqinzhuimengbaodefangfa,yibanzaiqingtianmeige10天施一次40%濃度的人糞尿或5%含硫複合肥浸出液。
三噴:fanqiebujinyougenbucongturangzhongxishouyingyangwusu,erqiekeyiyouyezixishoukuangzhiyingyangjitang,yicujinguoshijizhongzidefayu。suoyizaiguoshishengchangqijian,tebieshiqianqilianxuyinyubunengjinxingdixiazhuifeishi,yingjinxing2—3次葉後噴肥,可用天緣生化有機液肥500—300倍液噴施,還可用螯合態多元複合微肥500倍液噴施,以提高番茄的品質。
四忌:番茄追肥,忌用高濃度肥料,忌濕土施肥,忌中午高溫條件下施肥,忌過於集中施肥,一則易使植株徒長,二則易產生肥害,濕土施肥、引起落花、落luo葉ye和he落luo果guo等deng生sheng理li性xing病bing害hai,在zai高gao濕shi條tiao件jian下xia施shi肥fei,由you於yu土tu壤rang氣qi溫wen高gao,植zhi株zhu蒸zheng發fa量liang大da,施shi肥fei後hou,會hui妨fang礙ai植zhi株zhu根gen據ju係xi正zheng常chang運yun轉zhuan,引yin起qi植zhi株zhu死si亡wang。濕shi大da施shi肥fei和he高gao溫wen條tiao件jian下xia施shi,還hai易yi引yin起qi青qing枯ku病bing發fa生sheng。施shi肥fei時shi間jian應ying在zai清qing晨chen或huo傍bang晚wan進jin行xing。
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