| 四川丘陵地区桑园合理施氮方案的研究 |
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| 引用本文： | 殷浩,张建华,佟万红,刘刚,黄盖群,危玲,罗春燕,王丽.四川丘陵地区桑园合理施氮方案的研究[J].蚕业科学,2012,38(2):343-347. |
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| 作者姓名： | 殷浩 张建华 佟万红 刘刚 黄盖群 危玲 罗春燕 王丽 |
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| 作者单位： | 四川省农业科学院蚕业研究所,四川南充637000;四川省蚕业科技开发总公司,四川南充637000;四川省农业科学院土壤肥料研究所,成都,610066;四川省农业科学院蚕业研究所,四川南充,637000;四川省农业科学院蚕业研究所,四川南充637000;西南大学蚕学与系统生物学研究所,重庆400716;四川省林业科学研究院,成都,610066 |
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| 基金项目： | 现代农业产业技术体系专项，四川省经贸委重大产业技术创新专项，四川省农业科学院优秀论文基金项目，四川省财政基因工程青年基金专项 |
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| 摘 要： | 针对四川丘陵地区桑园偏施和过量施用氮肥的问题,设置0、120、240、360、480 kg/hm2尿素共5个施氮量试验组,通过比较与分析不同试验组桑叶产量和部分品质性状成绩,建立不同生产目的桑园施氮效应函数,提供合理的施氮方案。试验结果表明,少施或过量施氮都会降低桑叶产量及桑叶中营养活性物质的含量和桑叶营养活性物质的产量。240 kg/hm2的桑园施氮量能显著提高桑叶营养活性物质的含量;360 kg/hm2的桑园施氮量能显著提高桑叶产量及桑叶营养活性物质的产量。依据分别建立的桑园施氮量与桑叶产量、桑叶中的1-脱氧野尻霉素(DNJ)含量、桑叶DNJ产量的肥料效应函数,推荐以生产养蚕用叶为目的的桑园最佳施氮量为360 kg/hm2,以提高桑叶DNJ含量和产量为目的的桑园最佳施氮量分别为299.56 kg/hm2和294.72 kg/hm2。
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| 关 键 词： | 桑树 施氮量 桑叶产量 营养活性成分 1-脱氧野尻霉素 |
A Study on Suitable Scheme of Nitrogen Fertilization in Mulberry Gardens of Hilly Areas of Sichuan Province |
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| YIN Hao
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ZHANG Jian-Hua
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TONG Wan-Hong
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LIU Gang
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HUANG Gai-Qun
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WEI Ling
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LUO Chun-Yan
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WANG Li.A Study on Suitable Scheme of Nitrogen Fertilization in Mulberry Gardens of Hilly Areas of Sichuan Province[J].Acta Sericologica Sinica,2012,38(2):343-347. |
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| Authors: | YIN Hao ZHANG Jian-Hua TONG Wan-Hong LIU Gang HUANG Gai-Qun WEI Ling LUO Chun-Yan WANG Li |
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| Institution: | 1The Sericultural Research Institute,Sichuan Academy of Agricultural Sciences,Nanchong Sichuan 637000,China;2Institute of Sericulture and Systems Biology,Southwest University,Chongqing 400716,China;3Soil and Fertilizer Institute,Sichuan Academy of Agricultural Sciences,Chengdu 610066,China;4Sichuan Academy of Forestry,Chengdu 610066,China;5Sericulture Technology Development Corporation of Sichuan Province,Nanchong Sichuan 637000,China) |
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| Abstract: | Aiming at solving the problem of insufficient or excessive nitrogen fertilization in hilly areas of Sichuan Province,we compared and analyzed mulberry leaf yield and several quality property indexes in 5 test groups with different amount of nitrogen fertilization,namely 0,120,240,360,480 kg/hm2 of urea respectively,to establish nitrogen fertilization effect functions for various productive purposes so as to provide rational nitrogen fertilization scheme.The experimental results indicted that both insufficient and excessive nitrogen fertilization decreased mulberry leaf yield,the content and yield of active nutrient substances in mulberry leaf.The content of active nutrient substances in mulberry leaf was significantly increased under 240 kg/hm2 nitrogen fertilization,while mulberry leaf yield and active nutrient substances’ yield in mulberry leaf were significantly increased under 360 kg/hm2 nitrogen fertilization.According to the established fertilizer effect functions of nitrogen fertilization amount in mulberry gardens respective to mulberry leaf yield,1-deoxynojirimycin(DNJ) content and yield in mulberry leaf,it is recommended that the optimal nitrogen fertilization in mulberry gardens for producing mulberry leaves to feed silkworm is 360 kg/hm2,and that for improving the content and yield of DNJ in mulberry leaf is 299.56 kg/hm2 and 294.72 kg/hm2 respectively. |
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| Keywords: | Morus L Amount of nitrogen fertilization Mulberry leaf yield Active nutrient ingredient 1-deoxynojirimycin |
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