ACTA AGRICULTURAE BOREALI-SINICA ›› 2021, Vol. 36 ›› Issue (2): 116-126. doi: 10.7668/hbnxb.20191622

Special Issue: Rice

• Tillage & Cultivation·Physiology & Biochemistry • Previous Articles     Next Articles

The Effects of Transplanting Rice Seedling Period and Seedling Type on Yield and Quality under Different Cultivation Modes

WANG Wenyu, WAN Siyu, ZHANG Xuesong, WEI Yuanyuan, ZHANG Jiazhi, LI Hongyu, ZHENG Guiping   

  1. Agricultural College, Heilongjiang Bayi Agricultural University, Daqing 163319, China
  • Received:2020-12-04 Published:2021-04-28

Abstract: To clarify the effects of transplanting rice seedling period and seedling type on rice population quality,yield and quality formed under different cultivation modes. The rice variety Kenjing 7 was selected as the test material,three factor split zone design,the main area was dry land regulation and bilateral deep fertilization on ridge and conventional planting,the split area was two transplanting rice seeding times(transplanting seedlings on May 8 (early transplanting) and transplanting seedlings on May 18 (suitable for transplanting)),the split zone was two types of seedlings:conventional seedlings and young seedlings.It turns out:Cultivation mode, transplanting rice seedling period and seedling type had significant or extremely significant regulatory effects on total dry matter yield above ground, leaf area, leaf area index (LAI), yield and quality of rice in the main growth period.The dry land regulation and bilateral deep fertilization on ridge and conventional planting had significantly higher regulation on rice population quality indicators than conventional plain cultivation.Among them, the leaf area at the tillering stage, the heading stage, the filling stage, and the maturity stage were increased by 14.71%, 9.16%, 8.77%, and 2.1%, total dry matter yield above ground increased by 17.81%, 5.98%, 11.15%, 5.53% and significantly influence on rice yield and its components.The number of effective panicles and the number of grains per panicle increased by 7.34%,2.00% respectively, thereby increased the yield by 7.41%;In terms of rice quality, the processing quality, gloss, taste, and mouthfeel were improved, thereby increased the taste score by 2.52%. Compared with transplanting on May 18, transplanting rice seedlings on May 8 increased total dry matter yield above ground, leaf area and leaf area index (LAI), and significantly increased rice yield by increasing effective panicle number, seed setting rate, and 1000-grain weight;In terms of rice quality, the processing quality and protein content were reduced, and the taste score was improved. Conventional seedlings (planting seedlings on May 8) had higher total dry matter yield above ground, leaf area and leaf area index, and maintain higher yield and better quality;Milk seedlings (planting seedlings on May 18) significantly improved the quality of rice populations and maintaining a high number of grains per panicle, the yield was significantly increased.Under the conditions of this experiment, under the experimental treatment of dry land regulation and bilateral deep fertilization on ridge,conventional seedlings (planting seedlings on May 8),which had higher total dry matter yield above ground (18.52 g/hole) and leaf area index (4.33, 3.95) at the full heading stage and filling stage, significantly increased the number of grains per panicle (115 grains),it could significantly increase the yield (38.11 g/hole) and the taste score (77.11 points) of rice. Secondly, under the experimental treatment of dry land regulation and bilateral deep fertilization on ridge, milk seedlings (planting seedlings on May 18), the yield reached 36.85 g/hole, and the taste score was 72.14 points.

Key words: Rice, Cultivation mode, Transplanting rice seedling period, Seedling type, Yield, Quality

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Cite this article

WANG Wenyu, WAN Siyu, ZHANG Xuesong, WEI Yuanyuan, ZHANG Jiazhi, LI Hongyu, ZHENG Guiping. The Effects of Transplanting Rice Seedling Period and Seedling Type on Yield and Quality under Different Cultivation Modes[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(2): 116-126. doi: 10.7668/hbnxb.20191622.

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