Effect of Selenium Nutrition Enhancement Technology on Yield, Quality and Selenium Content of Lanzhou Lily

doi:10.11924/j.issn.1000-6850.casb2025-0109

Abstract

Abstract:

This study aimed to the explore effects of organic selenium fertilizer application at different growth stages (seedling stage, flowering stage, and swelling stage) and application frequencies on the yield, quality and bulb selenium content of Lanzhou lily, providing theoretical support for the efficient production of selenium-enriched Lanzhou lily and precise application of selenium fertilizer. The experiment was conducted over two years using Lanzhou lily as the material. Organic selenium fertilizer was applied at 3000 mL/hm² during the seedling, flowering, and swelling stages, either alone or in combination, to evaluate the effectiveness of different selenium nutrition enhancement techniques. The results indicated that applying selenium fertilizer on the foliage more than twice a year could significantly increase the yield of Lanzhou lily (P<0.05), with the highest increase reaching 34.53%. However, foliar application of selenium fertilizer did not significantly affect the morphological indicators and quality of Lanzhou lily (P>0.05). Additionally, foliar application of selenium fertilizer significantly enhanced the selenium content in lily bulbs (P<0.05), achieving a selenium-enriched effect after accumulating two applications, and selenium content gradually increased with the number of applications. In conclusion, it is recommended to apply organic selenium fertilizer once during the seedling, flowering, and swelling stages each year throughout the entire growth period of lilies to improve the yield of Lanzhou lily and promote the accumulation of selenium in lily bulbs, thereby facilitating the production of selenium-enriched lilies.

Key words: Lanzhou lily, selenium nutrition enhancement techniques, selenium accumulation, yield, quality, spraying frequency, growth indicators

LIU Yaoquan, WANG Liguang, PEI Huaidi, ZHANG Minmin, SHI Youtai, HOU Yiqing, HE Mingming. Effect of Selenium Nutrition Enhancement Technology on Yield, Quality and Selenium Content of Lanzhou Lily[J]. Chinese Agricultural Science Bulletin, 2025, 41(22): 75-81.

Figures/Tables 7

References 33

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处理	苗期	开花期	膨大期
Se0	清水	清水	清水
Se1	硒肥3000 mL/hm²	清水	清水
Se2	清水	硒肥3000 mL/hm²	清水
Se3	清水	清水	硒肥3000 mL/hm²
Se4	硒肥3000 mL/hm²	硒肥3000 mL/hm²	清水
Se5	清水	硒肥3000 mL/hm²	硒肥3000 mL/hm²
Se6	硒肥3000 mL/hm²	硒肥3000 mL/hm²	硒肥3000 mL/hm²

处理	苗期	开花期	膨大期
Se0	清水	清水	清水
Se1	硒肥3000 mL/hm²	清水	清水
Se2	清水	硒肥3000 mL/hm²	清水
Se3	清水	清水	硒肥3000 mL/hm²
Se4	硒肥3000 mL/hm²	硒肥3000 mL/hm²	清水
Se5	清水	硒肥3000 mL/hm²	硒肥3000 mL/hm²
Se6	硒肥3000 mL/hm²	硒肥3000 mL/hm²	硒肥3000 mL/hm²

土壤指标	平均值
硒/(μg/kg)	241.70
全氮/(g/kg)	1.31
全磷/(g/kg)	0.92
全钾/(g/kg)	16.76
碱解氮/(mg/kg)	70.46
有效磷/(mg/kg)	20.43
速效钾/(mg/kg)	196.69
pH	8.09
有机质/(g/kg)	19.40

土壤指标	平均值
硒/(μg/kg)	241.70
全氮/(g/kg)	1.31
全磷/(g/kg)	0.92
全钾/(g/kg)	16.76
碱解氮/(mg/kg)	70.46
有效磷/(mg/kg)	20.43
速效钾/(mg/kg)	196.69
pH	8.09
有机质/(g/kg)	19.40

年份	处理	株高/cm	茎粗/mm	叶面积指数	地上部分生物量/(g/株)	横径/mm	鳞茎含水率/%
2023	Se0	27.83±3.32ab	6.62±0.78a	0.53±0.14a	4.77±0.53a	47.97±9.28a	64.18±0.26a
	Se1	28.55±2.49ab	6.43±0.24a	0.48±0.13a	4.86±1.14a	48.32±3.44a	65.80±2.68a
	Se2	31.25±3.84a	6.28±0.55a	0.45±0.22a	5.48±0.16a	46.31±2.51a	64.22±1.92a
	Se3	24.87±1.42b	6.09±0.38a	0.45±0.14a	4.60±1.20a	43.75±7.56a	67.59±2.21a
	Se4	27.67±4.41ab	5.94±0.45a	0.49±0.12a	4.53±0.04a	48.35±5.44a	67.52±1.61a
	Se5	27.63±0.80ab	6.79±0.83a	0.40±0.08a	3.94±0.05a	47.45±1.85a	68.46±2.46a
	Se6	28.25±3.64ab	6.22±0.25a	0.42±0.10a	4.52±0.52a	44.31±5.61a	66.16±3.06a
2024	Se0	34.39±3.17a	9.95±0.53ab	0.47±0.33a	6.12±3.66a	55.45±6.79a	66.95±0.92a
	Se1	31.89±3.36a	8.50±0.37b	0.40±0.16a	5.30±2.22a	49.97±3.85a	68.04±2.06a
	Se2	33.36±6.79a	10.42±0.61a	0.54±0.14a	7.51±0.46a	54.96±3.14a	68.10±0.60a
	Se3	33.32±2.21a	9.60±0.95ab	0.46±0.19a	5.96±1.42a	51.91±10.17a	67.15±0.77a
	Se4	38.28±1.87a	9.05±1.36ab	0.51±0.07a	7.41±0.85a	57.21±8.51a	68.17±1.92a
	Se5	34.61±1.87a	9.76±0.40ab	0.64±0.22a	6.74±1.34a	52.47±3.9a	68.32±0.51a
	Se6	34.67±4.49a	9.72±1.16ab	0.62±0.27a	7.20±2.20a	58.53±5.59a	66.06±1.00a