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| 烟草活性有机无机专用肥的施用效果Ⅲ.对土壤养分供应状况和烟株根系生长发育的影响 | |
| 引用本文： | 罗建新,周万春,肖汉乾,方红,张延春.烟草活性有机无机专用肥的施用效果Ⅲ.对土壤养分供应状况和烟株根系生长发育的影响[J].湖南农业大学学报(自然科学版),2004,30(6):558-561. |
| 作者姓名： | 罗建新 周万春 肖汉乾 方红 张延春 |
| 作者单位： | 1. 湖南农业大学资源环境学院,湖南,长沙,410007 2. 常德卷烟厂,湖南,常德,410043 3. 湖南省烟草公司,湖南,长沙,410007 4. 湘西自治州烟草公司,湖南,吉首,416000 5. 浏阳市烟草公司,湖南,浏阳,410300 |
| 基金项目： | 湖南省科技厅资助项目(01NKY2037);本文第Ⅱ报见 |
| 摘 要： | 为了探明烟草活性有机无机专用肥对土壤养分有效供应强度和根系生长的影响，2001-2002年在湖南长沙进行了盆栽和大田试验．结果表明：施用烟草活性有机无机专用肥能够有效地促进烟株根系的生长，提高根系活力，烟株的单丛鲜根重增加77．2％，直径大于1mm的根数增加38．8％；同时，施用烟草活性有机无机专用肥还能提高土壤养分的有效供应强度，使土壤养分的有效供应更符合烟株对养分的需求，烟叶中N，K的累积量分别提高29．2％和33．5％，保证了烟株在营养生长期有充足的氮素营养供应，促进营养生长；在打顶后则有充足的钾素营养供应，促进烟叶的正常落黄成熟，有利于提高烟叶的品质． |
| 关 键 词： | 烤烟 活性有机无机专用肥 土壤养分有效性 根系活力 |
| 文章编号： | 1007-1032(2004)06-0558-04 |
| 修稿时间： | 2004年7月16日 |
Effects of the Specific Bio-Activated Organo-Inorgano Fertilizer for Flue-Cured Tobacco Ⅲ.Effect on Availability Nutrients of Soil and Growing of Tobacco Roots |
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| LUO Jian-xin,ZHOU Wan-chun,XIAO Han-qian,FANG Hong,ZHANG Yan-chun.Effects of the Specific Bio-Activated Organo-Inorgano Fertilizer for Flue-Cured Tobacco Ⅲ.Effect on Availability Nutrients of Soil and Growing of Tobacco Roots[J].Journal of Hunan Agricultural University,2004,30(6):558-561. | |
| Authors: | LUO Jian-xin ZHOU Wan-chun XIAO Han-qian FANG Hong ZHANG Yan-chun |
| Institution: | LUO Jian-xin1,ZHOU Wan-chun2,XIAO Han-qian3,FANG Hong,ZHANG Yan-chun5 4 |
| Abstract: | From 2001 to 2002,a field experiment and a pot experiment were conducted to study effects of specific bio-activated organo-inorgano-mixed fertilizers on flue-cured tobacco.The results showed that application of specific bio-activated organo-inorgano-mixed fertilizers could promote growth of root system and development of root activity by 5.8%~28.4%,and the increase of the weights of fresh root system by 77.2%.Amount of the basal roots was increased by 38.8%.The expendable space of roots was increased by 32.9%.Availability of soil nutrients was clearly increased, availability of nitrogen and potassium(K) of the soil was increased,and the intake weights of N and K nutrients were improved by 29.2% and 33.5% respectively.it was effective to increase the yield and improve the quality of flue-cured tobacco when specific bio-activated organo-inorgano-mixed fertilizers was applied. |
| Keywords: | flue-cured tobacco specific bio-activated organo-inorgano-mixed fertilizers root activity availability of soil nutrient |
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