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| 膜下滴灌棉花耐盐预警值的研究 | |
| 引用本文： | 孙肇君,李鲁华,张伟,张小伟,杨忠平,常世伟.膜下滴灌棉花耐盐预警值的研究[J].干旱地区农业研究,2009,27(4):140-145. |
| 作者姓名： | 孙肇君 李鲁华 张伟 张小伟 杨忠平 常世伟 |
| 作者单位： | 1. 石河子大学农学院,新疆,石河子,832003;新疆生产建设兵团绿洲生态农业重,点实验室,新疆,石河子,832003 2. 新疆生产建设兵团农六师农科所,新疆,五家渠,831300 3. 新疆生产建设兵,团农六师新湖农场,新疆,五家渠,831300 4. 石河子大学农学院,新疆,石河子,832003 |
| 基金项目： | 国家科技支撑计划，石河子大学高层次人才科研启动资金专项基金 |
| 摘 要： | 以不同次生盐渍化膜下滴灌棉田为对象,研究次生盐渍化对棉花生长发育的影响,并以此为基础探讨其状态预警问题.结果表明:在各生育期,土壤盐度与株高、干物质重、叶面积指数均呈极显著的负相关关系.低土壤盐度对棉花生物量和产量不会产生影响,说明棉花具有一定的耐盐性.籽棉产量的降低主要是由于土壤盐度的升高使棉花单株结铃数明显减少造成的.不同生育期棉花耐盐程度不同,各棉田的警度随着生育期的进行有逐渐减轻的趋势;0.6 dS/m以下的土壤盐度在各生育期都不会对棉花生长造成较大危害,2.8 dS/m以上的土壤盐度在前期更易对棉花生长造成严重影响,到吐絮期2.8 dS/m左右的盐度已不能对棉田造成较大危害. |
| 关 键 词： | 膜下滴灌 次生盐渍化 棉花 生长发育 预警值 |
Research on early warning value of salt tolerance of cotton with drip irrigation under mulch |
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| SUN Zhaojun,LI Luhu,ZHANG Wei,ZHANG Xiaowei,YANG Zhongping,CHANG Shiwei.Research on early warning value of salt tolerance of cotton with drip irrigation under mulch[J].Agricultural Research in the Arid Areas,2009,27(4):140-145. | |
| Authors: | SUN Zhaojun LI Luhu ZHANG Wei ZHANG Xiaowei YANG Zhongping CHANG Shiwei |
| Institution: | SUN Zhao-jun1,2,LI Lu-hua1,ZHANG Wei1,ZHANG Xiao-wei3,YANG Zhong-ping4,CHANG Shi-wei1(1.College of Agronomy,Shihezi University,Shihezi,Xinjiang 832003,China,2.Key Laboratory Oasis Eco-agriculture,Xinjiang Production and Construction Group,3.Institute of Agricultural Science and Technology of Agriculture Division No.6,Wujiaqu,Xinjiang 831300,4.Xinhu Farm of Agriculture Division No.6,W... |
| Abstract: | Effect of secondary salinization on the growth of cotton was studied by choosing different cotton fields with drip irrigation under mulch with the salinity gradient in Xinjiang,then the condition for early warning on its basis was investigated.The results showed that plant height,dry matter weight and leaf area index showed a significant negative correlation with soil salinity respectively in different growth period.Cotton is resistant to salinity,because the aboveground growth and yield of cotton were not ... |
| Keywords: | drip irrigation under mulch secondary salinization cotton growth early warning value |
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