| 摘要: |
| 金冠苹果盛果期大树在落叶前4～3周叶面喷施高浓度(4%～5%)尿素。喷施1次的处理增加短枝成花率;喷施1次、2次和3次均提高百短果枝2果座果率,对短枝新梢枝叶面积有增加作用;叶施尿素显著提高当年短果枝含氮量及翌年发育枝叶的氮素水平。各处理对百花序花朵数、短果枝果台副梢叶面积及果实大小没有显著的影响。 |
| 关键词: 苹果 叶面喷施 尿素 |
| DOI： |
| 分类号:S661.1 |
| 基金项目: |
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| Effect of Late-Autumn Foliar Urea Spray on Leaf and Shoot Development,Flowering and Fruiting ofGolden DeliciousApple in The Following Year |
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Cui Shaoping Xing Weibing Li Guangchen (Dept.of Horticulture,Beijing Agricultural University,Beijing,100094)
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| Abstract: |
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| Key words: apple foliar spray urea |
