Comparison of growing features in field by using manganese deficiency rice seedlings from dry nursery

The growing features and yield of manganese deficiency rice seedling from dry nursery were studied in Linjiang Village of Wenjiang County，Sichuan Province，when they were transplanted to paddy soil and upland．The experiment showed that except the height of manganese deficiency rice seedling was not significant difference with normal rice seedling，the other features including tillerings，fringings，grain numbers in one ear，one thousand seed weight and yields were lower than those of normal rice seedling．If the manganese deficiency rice seedling is use in farm land，no matter what systems are used such as flooding，plastic film mulch and wheat straw mulch and no matter what methods are used to remedy them ，the yield of it can not get to the yield by using normal rice seedling．