| 不同施钾量对玉米钾素吸收利用的影响研究 |
| |
| 引用本文： | 刘淑霞,吴海燕,赵兰坡,吴海文,王云长,范作伟.不同施钾量对玉米钾素吸收利用的影响研究[J].玉米科学,2008,16(4):172-175. |
| |
| 作者姓名： | 刘淑霞 吴海燕 赵兰坡 吴海文 王云长 范作伟 |
| |
| 作者单位： | 吉林农业大学资源与环境学院,长春,130118 |
| |
| 基金项目： | 国家863计划(2006AA10A309);沃土工程(2006BAD25B05);吉林农业大学博士后基金 |
| |
| 摘 要： | 采用田间试验研究了不同施钾量对玉米钾素吸收利用的影响。结果表明:玉米产量随钾肥用量提高呈缓慢上升趋势。当钾肥用量达156kg/hm2时玉米产量最高,为11177kg/hm2,与不施钾肥处理相比增产20.53%,产量差异达显著水平;不同施钾处理玉米收获后土壤速效钾含量比播种前有所降低,土壤缓效钾随钾肥施用量的增加而明显提高,土壤全钾含量变化不大;不同施钾处理,随着钾肥的施用量提高,玉米从土壤中带走钾量明显增加,当钾肥施用量在117kg/hm2以下时,土壤中的钾素亏损,不能保持土壤中钾素平衡;各处理玉米子粒中钾素含量均比其茎秆钾素含量低,随着钾肥施入量的增加,子粒茎秆中钾素含量也相应增加;不同施钾处理,钾素的利用率随钾肥的施用量的增加而减少。
|
| 关 键 词： | 玉米 不同施钾量 钾素吸收 |
| 收稿时间： | 6/1/2008 12:00:00 AM |
Effects of Different Potassium Rates on Potassium Absorption and Utilization by Maize Plant |
| |
| LIU Shu-xia;WU Hai-yan;ZHAO Lan-po;WU Hai-wen;WANG Yun-chang ;FAN Zuo-wei.Effects of Different Potassium Rates on Potassium Absorption and Utilization by Maize Plant[J].Journal of Maize Sciences,2008,16(4):172-175. |
| |
| Authors: | LIU Shu-xia;WU Hai-yan;ZHAO Lan-po;WU Hai-wen;WANG Yun-chang ;FAN Zuo-wei |
| |
| Abstract: | This paper used the method of field experiment, analysis and different application of potassium fertilizer for black soil region of middle of Jilin to study the effects of use of nitrogen from maize. The results showed that the output increased slowly with the dosage of potash fertilizer through different ways. When the dosage of potash fertilizer was 156kg/ha, the output of maize was highest. The highest output was 11 177 kg/ha. Compared with NPK0 disposing, the output was increasing by 20.53%, and production volume variance reached significance level. Cultivated land soil available potassium content was lower than pre-sowing, with the increasing of potassium application rate, the slowly available potassium was increasing obviously, but there was little change of soil total potassium content. Different treatment of potassium, along with the application of potassium, maize absorb more potassium from soil when application of potassium blow 117 kg/ha, the potassium status in soil lost so that it could not keep soil potassium balanced. Determination of potassium element in maize kernel was lower than its straw. Along with the application of potassium, potassium element in maize kernel also increased. Different treatment of potassium fertilizer, recovery of potassium fertilizer decreased along with the increasing of potassium application rate. |
| |
| Keywords: | Effects of Different Potassium Rates on Potassium Absorption and Utilization by Maize Plant |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《玉米科学》浏览原始摘要信息 |
| 点击此处可从《玉米科学》下载免费的PDF全文 |
|
