lianxuduonianzhongzhishucaidelaocaidi,turanglaohua,zhuyaobiaoxianchubingjunjidusuzaiturangzhongjilei,genxishouhaierfulan,shenzhiquanzhusiwang,bingchongweihaijiazhong,turangbanjie,youjizhikuifa;土壤鹽漬化加重,妨礙根係正常吸水,影響植株生長和產量;由於多年連作,致使土壤中的微量元素鋅、鐵、硼、鉬日漸減少;由於茬茬相扣間作套種很少深翻,使土層變淺,影響根係延伸。
治理措施五點:一yi是shi輪lun作zuo換huan茬cha。如ru瓜gua類lei與yu蔥cong蒜suan類lei輪lun作zuo,可ke減jian少shao病bing蟲chong害hai,而er且qie蔥cong蒜suan可ke大da量liang吸xi收shou瓜gua類lei吸xi收shou量liang小xiao的de肥fei料liao,充chong分fen利li用yong肥fei力li。二er是shi重zhong施shi有you機ji肥fei,以yi改gai善shan土tu壤rang團tuan粒li結jie構gou,增zeng強qiang土tu壤rang保bao水shui、保肥、xurenengli,shiturangshusongfeiwo,huanjieturangyanzihua,cujinshucaigenxifayu,tigaoqikangzaihainengli。sanshishidangxiuxian,huifudili,xiaochubingchongyuan。sishishiyongweifei。rumushipengfei0.125~0.2公斤,鋅肥1公斤。五是深翻,加厚熟土層。在休閑期內施足基肥後,深翻30厘米,增強土壤蓄水保肥能力。
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