Bibliographic Details
| Title: |
叶面配比施肥对树番茄苗木生长及非结构性碳水化合物的影响. |
| Alternate Title: |
Effect of foliar fertilization with variable ration on seedling growth and non-structural carbohydrates of Cyphomandra betacea. |
| Authors: |
李兴则1,2 xingzeli@swfu.edu.cn, 韦兴兰1,2, 曾惠平1,2, 董 琼1,2 dqyeam@swfu.edu.cn |
| Source: |
Southwest China Journal of Agricultural Sciences. 2024, Vol. 37 Issue 12, p2765-2774. 10p. |
| Subject Terms: |
*SEEDLING quality, *FOLIAR feeding, *ROOT development, *STATISTICAL correlation, *FERTILIZERS |
| Abstract (English): |
【Objective】The study aimed to investigate the growth of Cyphomandra betacea seedlings and the response of non-structural carbohydrates to different concentrations of foliar ration fertilizer application.【Method】One year old C.betacea seedlings were used for the study with urea [CO (NH2）2], calcium superphosphate[Ca (H2PO4）2·H2O] and potassium sulphate (K2SO4) as 3 fertilizers in an L9 (34) orthogonal experimental design with nine treatments, and non-fertilizer treatment as the control, the biomass, root morphology and non-structural carbohydrates (NSCs) of one-year old C.betacea seedlings under different N, P, and K dosing levels were compared and they were cowered out by the method of correlation analysis and affiliation function fuzzy comprehensive evaluation.【Result】Compared with CK treatment, foliar ration application significantly promoted the growth and nutrient accumulation of C.betacea seedlings.Its seedling height, diameter, biomass of various organs and seedling quality index were all best with S5 (N2P2K3) treatment, with significantly higher than that of the control treatment (P＜0.05, the same as below); S9 (N3P3K2) treatment had the best effect on the root morphology development of C.betacea seedlings; the different fertilizer treatments had a positive effect on the NSCs content and their components in various organs of C.betacea seedlings, and had a significant effect on the content of soluble sugars and starch in roots and stems, which could effectively promote the growth and nutrient accumulation of C.betacea seedlings. The different fertilization treatments had a positive effect on the content of NSCs and their components in all organs of C.betacea seedlings, and had a significant effect on the content of soluble sugars and starch in roots and stems, and effectively promoted the conversion of soluble sugars to starch in stems and leaves.【Conclusion】 Foliar ration fertilization promotes the biomass accumulation of C.betacea seedlings, improves the quality of seedlings, and promotes the accumulation of non-structural carbon content in various organs of seedlings. Fuzzy composite analysis showes that among the nine treatments, the S9 (N3P3K2) treatment has the most significant effect on the growth and non-structural carbon content promotion of C.betacea seedlings. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
【目的】探讨树番茄苗木生长及非结构性碳水化合物对不同浓度叶面配比施肥的响应。【方法】以1年生树番茄苗木为研究对象, 采用尿素 [CO (NH2) 2]、过磷酸钙 [Ca (H2PO4) 2·H2O]、硫酸钾 (K2SO4) 3 种肥料进行L9 (34) 正交试验设计, 共 9 个处理, 以不施肥处理为对照, 比较1年生树番茄苗木在不同 N、P、K 配施水平下生物量、根系形态及非结构性碳水化合物 (NSCs) 的响应, 并运用相关性分析及隶属函数模糊综合评价法进行综合评价。【结果】与处理 CK 相比, 叶面配比施肥能显著促进树番茄苗木生长与养分积累。其苗高、地径、各器官生物量及苗木质量指数均在处理 S5 (N2P2K3) 效果最佳, 且显著高于处理 CK (P＜0.05); 处理 S9 (N3P3K2) 对树番茄苗木根系形态发育效果最佳; 不同施肥处理对树番茄苗木各器官中 NSCs 及其组分含量均有正向促进作用, 对根和茎中可溶性糖和淀粉含量均有显著影响 (P＜0.05), 且能有效促进茎、叶中可溶性糖向淀粉转化。【结论】叶面配比施肥能有效促进树番茄苗木生长发育, 提高苗木质量, 增加各器官中非结构性碳含量。模糊综合分析表明, 在 9 种配比施肥处理中, 处理 S9 (N3P3K2) 对树番茄苗木生长和非结构性碳含量促进作用最显著。 [ABSTRACT FROM AUTHOR] |
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