Effects of Different Planting Densities on the Yield of Rice Developed from Seedlings Dry Raised in Plug Trays

• 作者: Baogang ZHU Bing GUO Hongtao SHAN Li YAO Qinglei ZHAO Shurong XIN Wenfan BIAN Xibo WU Xiuying YU Ye TIAN Zhengtao YANG
• 来源期刊: 农业生物技术:英文版
• 学科: 农学
• 关键词: Seedlings dry raised in plug trays RICE Planting density YIELD
• 年，卷（期）: nyswjsywb_2020,（3）
• 页码范围: 15-17
• 页数: 3页
• 分类号: S51

摘要

[Objectives]This study was conducted to investigate the effects of different planting densities on rice tillering dynamics and yield. [Methods]The effects of different planting densities on rice yield were studied based on seedlings dry raised in plug trays. [Results]Planting density had obvious effects on tillering dynamics,number of panicles per unit area,number of grains per panicle and rice yield under the condition of seedlings dry raised in plug trays. Comprehensive analysis showed that the row spacing × hill spacing = 25 cm × 14 cm,that is,the planting density of 2. 85 × 10~5 hills/hm~2,achieved the highest yield,at 9 960 kg/hm~2. [Conclusions]This study provides a scientific basis for optimizing rice cultivation techniques and achieving high yield and high efficiency in rice production.