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近几年来 ,黑龙江省秋白菜种子市场上 ,出现了两个新星———“龙协白三号”、“龙协白五号”大白菜。凡是种过这两个白菜品种的农民 ,没有不翘大拇指的 ,每年种子一上市 ,即被抢购一空。农民为什么喜欢种这两个品种 ,其因①抗病性强 龙协白三号大白菜的病情指数与牡丹江一号?
In recent years, the autumn seed market in Heilongjiang Province, there have been two new stars --- “Long Association White No. 3” and “Long Association White No. 5” Chinese cabbage. Those who planted these two cabbage varieties of farmers, without any thumbs-up, the annual listing of seeds, that is being sold out. Why do farmers like to grow these two varieties, because of ① disease resistance Long Association White No. 3 Chinese cabbage disease index and Mudanjiang on the 1st?