聚天冬氨酸镁对菠菜生长、产量和品质的影响

doi:10.16178/j.issn.0528-9017.20240434

摘要/Abstract

摘要：

为了探究聚天冬氨酸镁(PASP-Mg)对菠菜生产的影响,本研究以菠菜为试验材料,系统分析了不同施用量(1.50、2.25、3.00 kg·hm^-2)PASP-Mg对菠菜生长、产量、品质和养分积累的影响。结果表明:在试验施用量范围内,PASP-Mg对菠菜生长未表现出抑制作用,所有处理均具有显著(p<0.05)增产效果,增幅为10.20%~11.10%。在品质方面,施用PASP-Mg可显著降低菠菜中的硝酸盐含量,降幅为9.28%~13.11%,同时显著提高叶绿素、维生素C及可溶性蛋白含量,增幅分别为19.57%~23.91%、12.32%~17.90%和14.34%~22.13%。在养分积累方面,施用PASP-Mg可显著增加氮、磷、钾积累量,增幅分别为8.29%~10.35%、9.53~18.75%、8.58%~9.36%,表明施用PASP-Mg可增强养分利用效率。综合施用成本、菠菜产量与品质,确定本试验条件下PASP-Mg的适宜用量为2.25 kg·hm^-2,可以实现增产、提质的目标。

关键词: 聚天冬氨酸镁, 施用量, 菠菜

Abstract:

In order to explore the effects of polyaspartic acid-magnesium (PASP-Mg) on the production of spinach, this study used large-leaf spinach as the experimental material and systematically analyzed the impacts of different application rates (1.50, 2.25, 3.00 kg·hm^-2) of PASP-Mg on its growth, yield, quality, and nutrients accumulation. The results indicated that within the tested application rates, PASP-Mg did not exhibit any inhibitory effects on spinach growth. All treatments with PASP-Mg demonstrated significant (p<0.05) yield-increases by 10.20%-11.10%. In terms of quality, the application of PASP-Mg significantly reduced nitrate content in spinach by 9.28%-13.11%, while significantly increased chlorophyll, vitamin C, and soluable protein content by 19.57%-23.91%, 12.32%-17.90%, 14.34%-22.13%, respectively. In terms of nutrients accumulation, the contents of nitrogen, phosphorus, and potassium were significantly increased by 8.29%-10.35%, 9.53%-18.75% and 8.58%-9.36%, respectively, with PASP-Mg application. Based on the comprehensive analysis of spinach quality and yield and application cost, the optimal application rate of PASP-Mg under the experiment conditions was 2.25 kg·hm^-2, which could achieve the goals of increasing yield and improving quality.

Key words: polyaspartic acid-magnesium (PASP-Mg), application rate, spinach

中图分类号:

S636.1

董文浩, 马军, 白国伟, 张阔, 范占权, 焦永康. 聚天冬氨酸镁对菠菜生长、产量和品质的影响[J]. 浙江农业科学, 2025, 66(11): 2632-2636.

DONG Wenhao, MA Jun, BAI Guowei, ZHANG Kuo, FAN Zhanquan, JIAO Yongkang. Effects of polyaspartic acid-magnesium on growth, yield and quality of spinach[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(11): 2632-2636.

图/表 4

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处理	株高/cm		全株鲜重/g
处理	7 d	19 d	7 d	19 d
T1	3.20±0.05 a	13.83±0.10 a	0.03±0.01 a	17.10±0.02 b
T2	3.21±0.05 a	13.96±0.12 a	0.03±0.01 a	17.82±0.02 ab
T3	3.14±0.05 a	14.30±0.13 a	0.03±0.01 a	18.26±0.02 a
CK	3.07±0.05 a	12.84±0.18 b	0.03±0.01 a	15.84±0.02 c

处理	株高/cm		全株鲜重/g
处理	7 d	19 d	7 d	19 d
T1	3.20±0.05 a	13.83±0.10 a	0.03±0.01 a	17.10±0.02 b
T2	3.21±0.05 a	13.96±0.12 a	0.03±0.01 a	17.82±0.02 ab
T3	3.14±0.05 a	14.30±0.13 a	0.03±0.01 a	18.26±0.02 a
CK	3.07±0.05 a	12.84±0.18 b	0.03±0.01 a	15.84±0.02 c

处理	氮积累量	磷积累量	钾积累量
T1	76.51±0.75 a	21.38±0.12 b	108.97±0.23 a
T2	77.04±0.64 a	22.84±0.25 a	109.74±0.25 a
T3	77.96±0.82 a	23.18±0.31 a	109.75±0.20 a
CK	70.65±1.47 b	19.52±0.46 c	100.36±0.32 b

处理	氮积累量	磷积累量	钾积累量
T1	76.51±0.75 a	21.38±0.12 b	108.97±0.23 a
T2	77.04±0.64 a	22.84±0.25 a	109.74±0.25 a
T3	77.96±0.82 a	23.18±0.31 a	109.75±0.20 a
CK	70.65±1.47 b	19.52±0.46 c	100.36±0.32 b

处理	硝酸盐含量/ (mg·kg^-1)	叶绿素含量/ %	维生素C含量/ (mg·kg^-1)	可溶性蛋白含量/%
T1	683.69±0.42 b	0.55±0.01 a	384.7±0.2 a	2.79±0.02 b
T2	657.26±0.27 c	0.56±0.01 a	396.7±0.2 a	2.91±0.03 ab
T3	654.83±0.25 c	0.57±0.01 a	403.8±0.1 a	2.98±0.01 a
CK	753.59±1.38 a	0.46±0.01 b	342.5±0.4 b	2.44±0.06 c