| 降雨对烤烟吸收养分及氮磷钾配施的效应 |
| |
| 引用本文： | 熊德中,刘淑欣,李春英,曾文龙.降雨对烤烟吸收养分及氮磷钾配施的效应[J].福建农林大学学报(自然科学版),1994(3). |
| |
| 作者姓名： | 熊德中 刘淑欣 李春英 曾文龙 |
| |
| 作者单位： | 福建农业大学土地与环境学系，福建省烟草公司，永定烤烟试验站 |
| |
| 摘 要： | 淋雨使土壤速效氮钾含量明显下降．氮、钾、磷肥的淋失率分别为３６．０９％、２０．０１％、１．１６％，淋雨使烤烟氮、钾肥利用率分别下降３１．０９％、２０．０３％．而对磷肥利用率影响不大．不同氮磷钾配比的处理组合，烟株的生长、产量、质量具有明显的差异，在参试的九个处理组合中，以每公顷施纯Ｎ１３５ｋｇ：Ｐ２Ｏ５：Ｋ２Ｏ＝１：１：２为最优组合，上中等烟比例比其它处理组合提高４．０２％－１０．６５％，每公顷产值增加４８－９９０元．
|
| 关 键 词： | 降雨 烤烟 养分淋失率 NPK配施效应 |
Effect of Rainning on Tobacco Absorbing Nutrients and of NPK Mixed Application |
| |
| Xiong Dezhong,Liu Shuxin,Li Chunying,Zeng Wenlong.Effect of Rainning on Tobacco Absorbing Nutrients and of NPK Mixed Application[J].Journal of Fujian Agricultural and Forestry University,1994(3). |
| |
| Authors: | Xiong Dezhong Liu Shuxin Li Chunying Zeng Wenlong |
| |
| Abstract: | Content of available N and K in the soil were notably reduced by rain-drenched. The rain-washing ratio of N, K, P fertilizers was 36.09% , 20.01%, 1.16% , respectively. The ratio of N, K fertilizcrs absorbedly tobacco in the condition of rainning droped 31.09% and 20. 03% , respectively. The ratio of P fertilizer absorbed by tobacco was not influcnced by rainning. Tobacco growth, yield, quality in varied mixedand amount of NPK fertilizers were markly difference. The best treatment combination among nine treatment combinations of the experiment was that the ratio of N application was 135 kg per hm2 and N: P2O5 : K2O=1:1 : 2, which the ratio of high and middle tobacco quality was more 4.02%-10.65% and output value was more 48-990 yuan per hm2than other treatment combinations. |
| |
| Keywords: | rainning tobacco the rain-washing ratio of nutrients effect of NPK fertilizers mixed application |
| 本文献已被 CNKI 等数据库收录！ |
|
