炭疽病分级标准论文

玫瑰长久以来就象征著美丽和爱情。那么，你知道9朵白玫瑰代表什么吗?下面让我给大家介绍9朵白玫瑰代表含义，让我们一起去看一看吧。9朵白玫瑰代表含义：天长地久 切花“白玫瑰”实为月季，依树型区分：中型花(Fioribundas)、大轮花(Hybrid)、迷你玫(Mimi)、蔓性玫瑰。 依花型分类：平开型、开杯型、深杯型、丛生、四分丛生、单瓣、半重瓣、剑瓣、半剑瓣、单瓣环抱。 白玫瑰花语：你是圣洁的 / 你是我的/我足以与你匹配。 1、尊敬 2、不被注意(不为人知)的美 3、诚实 4、纯纯的爱 5、甘心为你付出所有 6、高贵 7、智慧 8、纯洁、纯情、天真 9、我足以与你相配 白玫瑰形态特征 纯白色大花，高心卷边，花形优美，花梗、枝条硬挺、少刺。其分级标准为：一级，45cm以上，花苞饱满，枝条粗壮，叶片浓绿，无病虫害。二级，30～45cm，花苞饱满，枝条粗壮，叶片浓绿，无病虫害。三级，30cm以下，花苞较小，枝条较细，叶片稍有杂色，无病虫害。 盛花期4～5月。玫瑰果实可食，无糖，富含维他命C，常用于香草茶、果酱、果冻、果汁和面包等，亦有瑞典汤(Nyponsoppa)、蜂蜜酒(Rhodomel)。 植物分类学上的玫瑰Rosa rugosa是蔷薇科蔷薇属灌木，原产于中国。其小叶发皱，易于和同属其他栽培品种区分。作为农作物，其花朵主要用于提炼香精玫瑰油，或者将花瓣直接腌制为食品，作调味料使用。山东平阴的玫瑰栽培历史悠久，所产的玫瑰酱、玫瑰油等相关产品享有盛名。在北京，妙峰山亦是著名的玫瑰产地。 白玫瑰栽培方法 (一)土壤选择白玫瑰对土壤的适应范围广，但要获得理想的产量和品质必须选择排灌方便、含丰富有机质的壤土。 (二)播种： (1)夏季一般采用直播方法。播种时可用条播，行距17～20厘米，每亩用种量100～150克左右。 (2)秋季一般采用移植或直播方法。种植苗期18～22天，定植的株行距17×17厘米至22×22厘米。气温高可适当密植，天气凉爽可适当疏些。 (三)大田管理： (1)白玫瑰整个生长期要求充足的水分。刚定植后，阳光猛烈，必须保持每天淋水三次，即早晚淋水和中午11～12时淋过午水。在雨季则要注意排除畦面积水。 (2)要施足基肥，每亩施腐熟农家肥1～吨，追肥一般在定植后3天或直播地苗龄15天开始施用，6～7天一次，全生育期3～4次。第一次要用较稀薄的肥水，以后浓度逐渐增大，每亩用复合肥10～20公斤淋施或撒施。最后一次要在植株封行前进行。 (四)植保发现有吊丝虫、甜菜夜蛾、斜纹夜蛾可用除尽1000倍或抑太宝2500倍加乐斯本1000倍喷杀。跳甲可用乐斯本1000倍喷杀。发现有霜霉病可用金雷多米尔600～800倍或50%安克2000倍防治。炭疽病可用易斑净1000倍防治。

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