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.
基金
Supported by Major Applied Agricultural Technology Innovation Project of Shandong Province (SD2019ZZ020)
Key R&D Program of Shandong Province(2019GSF109078)
Rice Innovation Team Construction Project of Shandong Modern Agricultural Industry Technology System (SDAIT-17-09)
Innovation Project of Shandong Academy of Agricultural Sciences (CXGC2018E03)
Youth Fund Project of Shandong Academy of Agricultural Sciences (2015YQN25)。
