| 水氮调控对宁夏旱区马铃薯株高、叶绿素和产量的影响 |
| |
| 引用本文： | 王臣,尹娟,赵彦波,王顺,张海军.水氮调控对宁夏旱区马铃薯株高、叶绿素和产量的影响[J].节水灌溉,2020(5):49-55,61. |
| |
| 作者姓名： | 王臣 尹娟 赵彦波 王顺 张海军 |
| |
| 作者单位： | 宁夏大学土木与水利工程学院,银川750021;宁夏大学土木与水利工程学院,银川750021;旱区现代农业水资源高效利用教育部工程中心,银川750021;宁夏节水灌溉与水资源调控工程技术研究中心,银川750021 |
| |
| 基金项目： | 创新项目;宁夏大学一流学科项目 |
| |
| 摘 要： | 为了探明宁夏中部旱区膜下滴灌水氮调控对马铃薯株高、叶绿素和产量的影响,采用双因素三水平随机区组试验,研究了不同灌水施氮处理对马铃薯株高、叶绿素相对含量和产量的影响。结果表明:在相同灌水量条件下,马铃薯株高不随施氮量的增加而增大,叶绿素相对含量随着施氮量的增加而升高,不同施氮量处理之间株高差异不显著(P>0.05);在相同施氮量条件下,马铃薯株高随灌水量增加而增大,叶绿素相对含量随灌水量的增加而降低,不同灌水量处理之间株高差异显著(P<0.05),灌水量对马铃薯株高的影响程度大于施氮量,T7处理马铃薯株高最大,T3处理叶片叶绿素相对含量最高;灌水和施用氮肥均可以提高马铃薯产量和商品薯产量,试验条件下T6处理马铃薯产量最大且商品薯率最高。在宁夏中部旱区灌水施氮方案以T6处理为宜。
|
| 关 键 词： | 水氮调控 宁夏旱区 马铃薯株高 叶绿素含量 马铃薯产量 商品薯率 |
Effects of Water and Nitrogen Regulation on Potato Plant Height,Chlorophyll and Yield in Arid Regions of Ningxia |
| |
| WANG Chen,YIN Juan,ZHAO Yan-bo,WANG Shun,ZHANG Hai-jun.Effects of Water and Nitrogen Regulation on Potato Plant Height,Chlorophyll and Yield in Arid Regions of Ningxia[J].Water Saving Irrigation,2020(5):49-55,61. |
| |
| Authors: | WANG Chen YIN Juan ZHAO Yan-bo WANG Shun ZHANG Hai-jun |
| |
| Institution: | (School of Civil and Water Conservancy Engineering, Ningxia University, Yinchuan 750021, China;Engineering Research Center for Efficient Utilization of Modern Agricultural Water Resources in Arid Regions, Ministry of Education, Ningxia University, Yinchuan 750021, China;Ningxia Research Center of Technology on Water-saving Irrigation and Water Resources Regulation, Yinchuan 750021, China) |
| |
| Abstract: | In order to find out the effects of water and nitrogen regulation under film drip irrigation on potato plant height,chlorophyll and yield in arid areas of central Ningxia,a two-factor three-level randomized block test was conducted to study the effects of different irrigation and nitrogen treatments on potato plant height,chlorophyll content and yield.The results showed that under the same irrigation conditions,potato plant height did not increase with the increase of nitrogen application rate,whilw the relative chlorophyll content increased with the increase of nitrogen application rate;there was no significant difference in plant height between different nitrogen application rates(P>0.05);under the same nitrogen application rate,potato plant height increased with the increase of irrigation amount,while relative chlorophyll content decreased with the increase of irrigation amount,plant height difference between different irrigation treatments was significant(P<0.05)The effect of irrigation amount on potato plant height was greater than that of nitrogen application.The potato plant height was highest in T7 treatment and the relative content of chlorophyll in leaves was highest in T3 treatment.Both irrigation and application of nitrogen fertilizer could increase potato yield and commercial potato yield.Under test conditions,T6 treatment potato yield was the largest and the commercial potato rate was the highest.In the arid area of central Ningxia,T6 treatment was the appropriate treatment for nitrogen and irrigation. |
| |
| Keywords: | water and nitrogen regulation Ningxia dryland potato plant height chlorophyll content potato yield commercial potato rate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
