What are the nectar plants suitable for the long flowering period in the north?

The nectar and pollen source plants mainly include: 1, main nectar and pollen source plants, and 2, special nectar and pollen source plants. The first section, the main nectar and pollen source plants 1, Vitex negundo:? Honey powder is rich, which is beneficial to the development of bee colonies. Generally, the output of honey is 20 ~ 50 kg. Beijing: Mentougou, Fangshan, Miyun, Huairou Pinggu and other counties, from late June to mid-August. Liaoning: Jinzhou, Chaoyang and other areas, from early July to mid-August, Inner Mongolia: Zhaowuda League, from early July to mid-August, Shanxi; Jinnan and Jinzhong, from late June to early August. 2. Robinia pseudoacacia: the flowering period is short and rich, with an average honey production of 10 ~ 25 kg. Henan: Zhengzhou, Kaifeng, Shangqiu and other regions; From late April to early May, Shandong: Linyi, Jining, Taian, Qingdao, Changwei, Yantai and other regions; From late May to mid-May, Beijing: urban area and its suburban counties; From early May to mid-May, Liaoning: Luda, Dandong, Jinzhou and other regions; And from late May to mid-May, Jiangsu: Xuzhou and other regions. Late April to early May, 3. Jujube tree: bees are prone to jujube flower disease and lack of pollen. After the honey period, the population declined seriously, and the general yield was 15 ~ 30 kg. Hebei: Cangzhou, Baoding and other regions; From early June to early July, Henan: Kaifeng and Lingbao, Xunxian, Puyang, Xiaofeng, Xinzheng and other counties; May-June, Shandong: Qihe, Yidu, Laoling, Qingyun, Lin Xiaofeng, Xinzheng and other counties; From late May to early June, Shanxi: Jinmen, southeastern Shanxi and other regions; From late May to June. ? Guangxi: Nanning, Yulin, Wuzhou and other regions, from late June 65438+February to late October of the following year 10, Guangdong: Shaoguan, Huiyang and other regions, from late February 65438 to late February of the following year, Yunnan: Kunming, Yuxi, Dali and other regions, from late June 65438+February to late March of the following year, Fujian: 65438+ 10 Mid-October to late March, Sichuan: Leshan, Yibin, Chengdu, Wenjiang and Mianyang; From early February to late March, Hunan: Chenzhou, Xiangtan and Yueyang; From early March to late March, Hubei: Huanggang, Xiaogan and Wuhan; From early March to late March, Henan: Xinyang and Shangqiu; And from early March to late April in Zhejiang: Hangzhou and Jiaxing. From early March to mid-April, Anhui: Chuhu and Chaohu areas; From early March to mid-April, Shanghai: Songjiang, Jiading, Qingpu, Jinshan and Nanhui counties; From early April to mid-May, Qinghai: Datong, Roy and Menyuan counties; Late June to early August; 5. Litchi: Litchi is divided into early, middle and late varieties, with a general yield of 20-50 kg. ? Guangdong: Conghua, Xinxing, Dongguan, Panyu, Baoan and other counties; From mid-March to late April, Guangxi: Changwu, Luchuan, Lipu and other counties; From early April to late April, Fujian: Zhangzhou, Quanzhou, Jinjiang and other regions; Early April to late April, 6. Chinese milk vetch: Chinese milk vetch is the green manure of rice, which is divided into morning and evening with an interval of about 20 days. Rich honey sources are suitable for the development of bee colonies. The flow of honey is also large, with an average honey production of 20 ~ 50 kg. ? Guangxi: Nanning, Yulin and Wuzhou,165438+ from early October to early March, Guangdong: Guangzhou, Foshan, Huiyang and Meixian, early February to mid-March, Fujian: Longxi and Putian, early February to mid-March, Jiangxi: Nanchang, Yichun, Ganzhou and Jinggangshan, etc. From early March to late March, Zhejiang: Hangzhou, Jinhua, Jiaxing and Ningbo; From late March to mid-April, Hubei: Wuhan and Xiaogan; From mid-April to late April, Anhui: Juhu, Lu 'an and Chaohu; From early April to late April, Jiangsu: Suzhou and Zhenjiang; From early April to late April, Henan: Xinyang; Early April to early April: Bodhi tree. Heilongjiang: Yichun, Hulin, Guang 'an, Tieli, Hailin, Yanshou, Binxian, Huanan, Fangzheng, Mulan, Shangzhi, Helen, Ning 'an and Dongning. From early to late July, Jilin: Huadian, Jiaohe, Huinan, Tonghua, Jingyu, Fusong, Changbai, Dunhua, Hunchun and Helong. Heilongjiang: Suihua, Nenjiang and other places, from late July to mid-August, Jilin: Changling, Gan 'an, Nong 'an, Guo Qian, Fuyu, Tongyu, Baokang, Daan and other counties, from late July to mid-August, Liaoning: Chaoyang, Fuxin and other areas, from early August to early September, 9. Buckwheat: rich in nectar and little in pollen, with a general yield of 25-20%. From early August to early September, Jilin: Baicheng area; From mid-August to early September, Liaoning: Chaoyang, Fuxin and other areas; From late August to mid-September,10; Soil seed: the honey flow is unstable, and the average output per unit area is LO ~ 40 kg. Sichuan: Wenjiang region, from mid-April to mid-May, Jiangsu: Huaiyin, Nanjing, Xuzhou, Yancheng and other regions, from early May to early June, Shandong: Linyi, Jining and other regions, from early May to early June, Anhui: Suxian region, from early May to early June,1,Ubuntu: honey juice. The average yield of honey is 20-40 grams. Sichuan: Zhao Hua, Guangyuan, Pingshan, Wushan, Nanchuan, Gu Song and Gulan counties; From late May to late June, Guizhou: North Guizhou and Northeast Guizhou; From late May to mid-July, Zhejiang: Jinhua, Hangzhou and Jiaxing; From early June to early July, 12 and sweet clover. Rich in honey powder, which is beneficial to the development of bee colonies. Generally, the output of honey is 20 ~ 50 kg. Shaanxi: northern Shaanxi, from mid-June to mid-July, Shanxi: Yanbei and Qixian, from late June to late July, Jilin: Baicheng, from early July to late July, Liaoning: Chaoyang and Fuxin, from early July to late July, and Inner Mongolia: Zhao Meng and Zhemeng. From early July to late July, 13, longan: honey flow is divided into different years, with an average yield of 10 ~ 30 kg. Guangdong: South Guangdong and Xijiang River Basin, Guangxi: Yulin from early April to mid-April, Sichuan: Luzhou and Yibin from early April to mid-May, and Fujian: Quanzhou and Putian from early May to mid-May. Zhejiang: Hangzhou, Ningbo, Jiaxing and other regions; Jiangsu: Nantong, Suzhou, Huaiyin and other areas from late July to early September; Xinjiang: Turpan from early August to mid-September; Early July to1early October 15, strip: autumn honey source, general output 10 ~ 40 kg. Jilin: Jilin City, Yanbian, Tonghua and other areas, from late July to late August, Liaoning: Benxi, Shenyang, Dandong and other areas, from late July to late August, 16, Eucalyptus: long flowering period, large honey flow, generally 20-40 kg per unit area, longan Eucalyptus and lemon Eucalyptus are the best honey-flowing trees. Guangdong: from mid-May to late June, Eucalyptus longan+10/from late October to mid-March, Eucalyptus citriodora+from early August to early September, Eucalyptus grandis +07, and Yebazi: the flowering period is long, about 80 days. The honey yield per unit area of tianyi bee is 15 kg, and that of Chinese bee is 65438.