Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (8): 1669-1678.DOI: 10.3969/j.issn.1004-1524.2022.08.11

• Horticultural Science • Previous Articles     Next Articles

Dry matter and nutrients accumulation characteristics of high-yield and conventional daylily varieties

WANG Feng1(), LIU Haitian1, YU Qiaogang1, YE Jing1, HE Xinhua2, ZHOU Yang3,*(), MA Junwei1,*()   

  1. 1. Institute of Environment, Resources, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    2. College of Resources and Environment, Southwest University, Chongqing 400715, China
    3. Bureau of Agriculture and Rural Affairs of Jinyun County, Jinyun 321400, Zhejiang, China
  • Received:2021-08-07 Online:2022-08-25 Published:2022-08-26
  • Contact: ZHOU Yang,MA Junwei

Abstract:

The study on nutrients absorption and its relationship with high-yield could provide theoretical basis for the reasonable fertilization and development of special fertilizer for daylily (Hemerocallis fulva). In the present study, conventional variety Shixin and high-yield variety 207 were used as test materials, and the dry matter accumulation dynamics, and contents of N, P, K, S, Ca, Mg, Zn, B, Mo, Mn were determined at different growth stages during March to November in 2020. It was shown that the dry matter accumulation of both varieties reached the maximum at the budding and flowering stage, and the highest dry matter accumulation speed was from the leaf-expansion stage to the bolting stage. The dry weight of root of the conventional variety reached the highest at the bolting stage, while the high-yield variety reached the maximum at the budding and flowering stage. The requirement of N, P, K, S, Ca, Mg, Zn, B, Mo, Mn in the high-yield variety was significantly (P<0.05) higher than that in the conventional variety. The requirement of N, K, P of high-yield variety was mainly before the budding and flowering stage, while the absorption of N and K of the conventional variety was concentrated within the budding stage to the leaf-expanding stage, and the absorption of P was mainly in the bolting stage. In the budding stage, the absorption of S and Ca was the largest in the conventional variety, and the highest absorption of Mg was found in the leaf-expansion stage, while the absorption of S, Ca, Mg of the high-yield variety was mainly before the budding and flowering stage. The absorption of Zn, B, Mo and Mn of the conventional variety was concentrated before the bolting stage, yet the absorption of Zn, B, Mo and Mn of the high-yield variety lasted until the bolting stage, and the accumulation amount in the bolting stage was the highest. In the whole growth period, the N, P, K demand ratio was 1.0∶0.25∶2.3 in the high-yield variety and 1.0∶0.24∶1.7 in the conventional variety; the demand ratio of S, Ca, Mg was 1.0∶11.5∶1.8 in the high-yield variety and 1.0∶5.5∶1.0 in the conventional variety. In conclusion, the high-yield variety had longer root development time and higher dry matter accumulation. In the preparation and development of special fertilizers for high-yield cultivation of day-lily, the supply of K and medium and trace elements should be ensured to meet the the growth and development requirement of daylily.

Key words: Hemerocallis fulva Linn., growth, nutrients absorption, high-yield cultivation

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