大葱生理性干尖与灰霉病的发生及防治_0

大葱生理性干尖与灰霉病的发生及防治_0 大葱生理性干尖与灰霉病的发生及防治 NNNONGY ?????????????????9??,?????????? ?m??????,???????(???????????????: ????,??????????????,?????5???O???? ???????m???????????????????m???1?? ????????,???:?6?A????,???0???????? ???????????????????????????:???O?? ?:???5?3?????????7?????????????:?0 ????????,??????????????????,?????? ??,???????????5???????O ???N???????(?????m?? (??)???????? ???????(?????m???????????????? ?????9???????5?O????????????(???? ???N??????)?7?????m?????N?2???O???? ???6?6?6?????m???O?????:????,???????O?? ?m???????????????????m?????????0?8 ?8???8??????,??????????,???m???(?? ???????????m?????O?????(?G???????? ?3?????O?3??????,?????5??,?????m?? ???Y???????O (??)???????? 1?N?:???????????O?????????????? ??????????,?????????????m?????????O ???????????::?????????N????,?????? ???N?????????N????????????????29?? ???O 2?N???????????????(?O?1?(?????N?O ??????,?:?????????????????1?O?:???? ????,?m??????,????????,?????????? ???.?G???8?O???????????????1,?????? ???????O???????????7????????,???? ???%?????Y,?0???????????Y,???.???? ?????O???????7,?G?????????N???N?6?N??, ?????:??????????????????????,???? ?????G????,?????8???O 3?N?????????G??,?????????O?????? ???????G??,???????????????????O???: ??50%???????????N80%???????????Y 1000?5?????1??,?m10%??????2000 ?5???m2.5%????????????2000~ 3000?5??,?m48%??????????3000?5 ??,???:?????????m????????????,???? 0.1%?????H?????m?,1%???????m?? ??,??5~6????1??,????50~60???? ???????????~,????2~3??,???:???? ???O ???N???????:?? (??)???????? ???????:?????????????????????? ???7????????(??????????????),???? ???????????????????Y?????O???????? ???9??????????????(??)??????,???? ??????,???????????????????8???m?? ?????7???????????????????N?~??,???? ??????????,?5?3???????6?A???????? ?????????:???????O (??)???????? 1?N???????O?????????m?????????? ?????????5?O????(???????N????),???? ?2???????m???%???%????,???3?????8 ?(???m???(??????,?:?????????????? ????,?7???????????m?????O 2?N???m???O???????????????????O ????(????13?G~18?G???2?m???????? ?????:????????),?m?????????m?????? ???5?????8???%????,?????????????8 ?????8???:????????????????????(???? ???????(???m??????????),???6?????? ?????Y?:?????:????(????)?O 3?N???????O???????????N?????N?????N ?????N?????????9,?5??????????,???? ????,???????(????????????????,???? ????????,??????????????????,?????Y ????????????,?????:?m????????(???? ?(???????????(??????),?????????? ??,????????????,??????????????,?? ????30%~70%,???????8?????O (?:)???????? 1?N?:???????????O???????????N?6?? ???N????????80?????O 2?N?????,?N?????O?????????????m ?????0?????????????N???N?????N????, ???????m?????m?????m????????????, ????????????,?????????O 3?N?????~???O????????????????,?? ???????N??????????,?)???????????? ???O 4?N?1?(???5?N???????????????O???? ????????,?O????????,????????????, ???????????%??,?????????%?6?A,???? ?????????O???????????2,?????:????, ???N???N??????????,???????????????? ????,?????????????.?G???8,???????? ???1?O?%??????,?????????O????,???? ???7,?????????%?6??,?????????O???? ??,???????1?????????O 5?N????????,?????????O?????????? ????,???:???:?????9????????????,?? ?????????O77%?????????????????? 500~800?5??,?m2.5%?O???????????m 50%??????500~800?5??,30%?????? ????????????200~300?5??,?m13%?? ???:????????????,??667m 2 ?? 130~150??????50?????O??????50%?? ?????m65%?????????3,?m10%?????? ?:????????????,??667m2 ??100~150?? ????50~70????????,????????7??,?? ??2~3???????O???0???????0????:?? ?????6????????,???:???2?????????? ?????????????N?????m??????10?????? ???????m????,???????????O ?????O???????????????????????? ?????O???????????????0?? ???????(?????m?0???:???? ?????????? ?????0?5?? 20079 HEAE14