• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Research on Crops >Investigation on the effects of conventional irrigation (CI), regulated deficit irrigation (RDI) and partial root zone drying (PRD) on yield and yield components of sunflower (Helianthus annuus L.).
【24h】

Investigation on the effects of conventional irrigation (CI), regulated deficit irrigation (RDI) and partial root zone drying (PRD) on yield and yield components of sunflower (Helianthus annuus L.).

机译：研究了常规灌溉（CI），调节亏缺灌溉（RDI）和部分根区干燥（PRD）对向日葵（向日葵）产量和产量构成的影响。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study was carried out to understand the yield and yield components response of sunflower to conventional and limited irrigation and to determine the irrigation method which gives the greatest production per unit irrigation water in the Ahwaz Plain of Iran. Three irrigation methods i. e. conventional irrigation [CI, both sides (both furrows) of plant row watered; applied 100% of water requirements during the whole season], regulated deficit irrigation [RDI70 and RDI50, both sides of plant row watered; applied 100% of water requirements upto V8 stage (Plant with 8 leaves) then 70 and 50%, respectively, thereafter] and partial root-zone drying [PRD70 and PRD50, both sides of plant row alternatively watered; applied 100% of water requirements upto V8 stage (Plant with 8 leaves) then 70 and 50%, respectively, thereafter] with full (about 623 mm) or limited (50 and 70%) irrigation water, were applied to the hybrid Hysun 33 planted on loamy soil. The highest seed yield (6687.7 kg/ha) and oil yield (3553 kg/ha) were obtained from the CI treatment, and the lowest seed yield was related to PRD50 and RDI50 irrigation treatments (3537.3 and 3615.3 kg/ha, respectively). Also, the lowest oil yield was obtained from the RDI50 and PRD50 irrigation treatments (1464.3 and 1584.7 kg/ha, respectively). A linear relationship was found between irrigation (mm) and seed and oil yield (kg/ha) at 99% level of confidence (R2=0.99 and R2=0.98, respectively). Seed and oil yield responded linearly to applied water i. e. the seed and oil yield increased as irrigation amount was increased. Therefore, we confirm that CI irrigation treatment is the best choice for maximum yield under the local conditions, but this irrigation scheme must be re-considered in areas where water resources are more limited.
机译：进行这项研究是为了了解向日葵对常规灌溉和有限灌溉的产量和产量组成的响应，并确定在伊朗阿瓦兹平原每单位灌溉水产量最高的灌溉方法。三种灌溉方式e。常规灌溉[CI，对植物行的两侧（均为犁沟）浇水;在整个季节中施用了100％的需水量]，调节性亏缺灌溉[RDI 70 和RDI 50 ，对两行植物进行了浇水施用100％的水分直到V8阶段（有8个叶子的植物），然后分别施用70％和50％]，然后进行部分根区干燥[PRD 70 和PRD 50 植物行的两侧交替浇水;在V8阶段（有8片叶子的植物）上施用了100％的水，然后分别是70％和50％，然后]用混合水（约623毫米）或有限（50％和70％）的灌溉水施用了杂交Hysun 33种植在肥沃的土壤上。 CI处理获得了最高的种子产量（6687.7 kg / ha）和油的产量（3553 kg / ha），最低的种子产量与PRD 50 和RDI 50 <灌溉处理（分别为3537.3和3615.3 kg / ha）。另外，通过RDI 50 和PRD 50 灌溉处理获得的最低油产量（分别为1464.3和1584.7 kg / ha）。在99％的置信水平下，灌溉量（mm）与种子和油料产量（kg / ha）之间存在线性关系（R 2 = 0.99和R 2 = 0.98） ， 分别）。种子和油的产量与施水呈线性关系。 e。随着灌溉量的增加，种子和油料产量也增加。因此，我们确认在当地条件下CI灌溉处理是获得最大产量的最佳选择，但是在水资源更加有限的地区必须重新考虑这种灌溉方案。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号