今年杂交玉米制种面积增加16%

疫情期间美国民众不得不居家办公和学习，Common Sense Media最新报告显示，数字鸿沟仍在美国继续存在。生活在低收入家庭的美国孩子中有33%无法使用家用电脑——相比之下，只有6%的高收入家庭没有电脑。对于可以使用平板电脑的孩子来说，情况类似，60%低收入家庭的孩子可以使用平板电脑，而富裕家庭的孩子这一比例为81%。据皮尤研究中心的说法，美国的宽带差距也加剧了这个问题，并且在低收入家庭中尤为普遍。数字鸿沟加深了社区内已经存在的不平等状况，有可能将贫困家庭的孩子抛在后面，让他们更难赶上。","multimedia":{"img_url":["https://n.sinaimg.cn/zhibo/54/w1296h1158/20220415/eb05-7ed5896c32db8d2e4ad188f07c2e8508.png"]},"commentid":"live:finance-152-2632563:0","compere_id":0,"creator":"mingyu@staff.sina.com.cn","mender":"mingyu@staff.sina.com.cn","create_time":"2022-04-15 22:50:06","update_time":"2022-04-15 22:50:14","is_need_check":"1","check_time":"2022-04-15 22:50:10","check_status":"1","check_user":"mingyu@staff.sina.com.cn","is_delete":0,"top_value":0,"is_focus":0,"source_content_id":"0","anchor_image_url":"","anchor":"直播员","ext":"{"stocks":[],"needPush":false,"needAIPush":false,"needCMSLink":true,"needCalender":false,"needProvince":"0","docurl":"https:\/\/finance.sina.com.cn\/7x24\/2022-04-15\/doc-imcwipii4523921.shtml","docid":"mcwipii4523921"}","old_live_cid":"0","tag":[{"id":"8","name":"其他"}],"like_nums":0,"comment_list":{"list":[],"total":0,"thread_show":0,"qreply":0,"qreply_show":0,"show":0},"docurl":"https://finance.sina.cn/7x24/2022-04-15/detail-imcwipii4523921.d.html","rich_text_nick_to_url":[],"rich_text_nick_to_routeUri":[],"compere_info":""},{"id":2632562,"zhibo_id":152,"type":0,"rich_text":"【今年杂交玉米制种面积增加16%】据全国农技中心统计，今年杂交玉米制种计划面积315万亩，较去年增加43万亩、增幅16%。杂交水稻制种计划面积163万亩，较去年增加5万亩、增幅3.16%。大豆繁种计划面积502万亩，较去年增加51万亩、增幅11%。分析指出，市场销售两极分化，杂交玉米与杂交水稻制种面积虽然同比增加，但有效库存数量保持低位，特别是杂交玉米，热销品种库存几近清零。