Effects of foliar fertilizers on the growth of vegetable sweet potato under different fertilization levels

doi:10.16178/j.issn.0528-9017.20221225

Abstract

Abstract:

In order to explore the effects of different foliar fertilizers and nitrogen reduction fertilization on the growth of vegetable sweet potato, the effects of different fertilization levels and different foliar fertilizer applications on the growth status, relative chlorophyll content of leaves, eating quality, branch number and yield of vegetable sweet potato were studied by pot experiment and different treatments. The results showed that foliar fertilizer rapeseed cake fertilizer had the best effect on the yield and branch number of vegetable sweet potato, and amino acid fertilizer 2 and Huaduoduo were second. Rapeseed cake fertilizer and amino acid fertilizer 1 had the best effect on improving quality, but the effect of amino acid fertilizer 1 on yield improvement was not significant. The yield and branch number of nitrogen reduction fertilization combined with foliar rapeseed cake fertilizer were comparable with those of conventional fertilization.

Key words: vegetable sweet potato, foliar fertilizer, yield, quality

CLC Number:

S531

ZENG Yannan, ZHAO Hanwei, JI Hongting, WANG Qingnan, CHENG Rundong, WANG Yong, WANG Shihong, ZHAO Hejuan. Effects of foliar fertilizers on the growth of vegetable sweet potato under different fertilization levels[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(1): 108-112.

Figures/Tables 7

References 14

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处理	基肥	叶面肥
CK1	常规施肥	空白(对照1)
CK2	减氮施肥	空白(对照2)
1	常规施肥	氨基酸肥1
2	减氮施肥	氨基酸肥1
3	常规施肥	氨基酸肥2
4	减氮施肥	氨基酸肥2
5	常规施肥	花多多
6	减氮施肥	花多多
7	常规施肥	菜籽饼肥
8	减氮施肥	菜籽饼肥

处理	基肥	叶面肥
CK1	常规施肥	空白(对照1)
CK2	减氮施肥	空白(对照2)
1	常规施肥	氨基酸肥1
2	减氮施肥	氨基酸肥1
3	常规施肥	氨基酸肥2
4	减氮施肥	氨基酸肥2
5	常规施肥	花多多
6	减氮施肥	花多多
7	常规施肥	菜籽饼肥
8	减氮施肥	菜籽饼肥

处理	嫩茎长/ cm	嫩茎粗/ mm	叶柄长/ cm	叶长/ cm	叶宽/ cm	叶面积/ cm²
CK1	12.33 a	6.45 ab	10.03 a	8.53 a	7.41 ab	63.33 ab
CK2	12.28 a	5.97 b	9.71 a	8.38 a	6.80 b	57.26 b
1	13.12 a	6.57 a	10.19 a	9.16 a	7.90 a	72.35 a
2	12.90 a	6.24 ab	9.72 a	8.87 a	7.46 ab	66.21 ab
3	12.54 a	6.48 ab	10.05 a	9.10 a	7.81 a	71.19 ab
4	12.90 a	6.33 ab	9.93 a	8.64 a	7.49 ab	65.74 ab
5	13.18 a	6.65 a	10.03 a	9.29 a	7.80 a	72.55 a
6	12.99 a	6.44 ab	9.76 a	8.84 a	7.56 ab	67.06 ab
7	13.61 a	6.64 a	10.20 a	9.22 a	7.78 a	71.82 ab
8	12.86 a	6.42 ab	9.79 a	8.75 a	7.71 a	67.45 ab

处理	嫩茎长/ cm	嫩茎粗/ mm	叶柄长/ cm	叶长/ cm	叶宽/ cm	叶面积/ cm²
CK1	12.33 a	6.45 ab	10.03 a	8.53 a	7.41 ab	63.33 ab
CK2	12.28 a	5.97 b	9.71 a	8.38 a	6.80 b	57.26 b
1	13.12 a	6.57 a	10.19 a	9.16 a	7.90 a	72.35 a
2	12.90 a	6.24 ab	9.72 a	8.87 a	7.46 ab	66.21 ab
3	12.54 a	6.48 ab	10.05 a	9.10 a	7.81 a	71.19 ab
4	12.90 a	6.33 ab	9.93 a	8.64 a	7.49 ab	65.74 ab
5	13.18 a	6.65 a	10.03 a	9.29 a	7.80 a	72.55 a
6	12.99 a	6.44 ab	9.76 a	8.84 a	7.56 ab	67.06 ab
7	13.61 a	6.64 a	10.20 a	9.22 a	7.78 a	71.82 ab
8	12.86 a	6.42 ab	9.79 a	8.75 a	7.71 a	67.45 ab

处理	重复1/%	重复2/%	重复3/%	重复4/%	平均/%
CK1	9.87	9.84	9.97	9.70	9.84 a
CK2	10.12	9.63	9.82	9.83	9.85 a
1	10.21	10.11	9.09	9.28	9.67 ab
2	9.71	9.51	9.51	9.63	9.59 ab
3	9.25	9.81	9.48	9.69	9.56 ab
4	10.03	8.99	9.38	9.12	9.38 ab
5	9.56	9.45	9.79	9.13	9.48 ab
6	9.13	9.38	9.61	9.81	9.48 ab
7	8.88	9.36	9.51	9.09	9.21 b
8	9.42	9.33	8.67	9.32	9.19 b