Effects of quantitative nutrient management on the growth and nutrient contents of mini radish with soilless culture in different growing seasons

doi:10.16178/j.issn.0528-9017.20230813

Abstract

Abstract:

In this article, the effects of quantitative nutrient management below the optimal nutrient solution concentration on the growth and nutrient contents of mini radish in three different growing seasons were studied. Three treatments were set in the experiment: 500(T1), 400(T2) and 300 (T3) mg nitrate nitrogen per plant, which were 60%, 50% and 40% of the optimum concentration, respectively. The above-ground and underground growth, nutrient contents and nitrate contents in different parts of mini radish with soilless culture were measured in spring, autumn and winter. The results showed that all treatments reached the commercial weight in spring, and the highest weight of underground part reached 54.5 g (T1 treatment), but the growth of underground part in autumn and winter were slower than that in spring, and the leaf length increased significantly. In the three growing seasons, the nutrient contents of N, K and Ca in the above-ground and underground were little changed, but the nitrate contents changed irregularly, which needs further study in the future. In overall consideration, the optimum concentration of nitrate nitrogen was 400 mg per plant, which was suitable for the annual production of mini radish with soilless culture.

Key words: quantitative nutrient management, nitrate, mini radish

CLC Number:

S631.1

LI Huixia, LIU Wei, ZHOU Gang, YUAN He, ZHANG Xiaomei, LI Hong, YUAN Shengliang, YANG Rui. Effects of quantitative nutrient management on the growth and nutrient contents of mini radish with soilless culture in different growing seasons[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(5): 1159-1164.

Figures/Tables 6

Table 1

处理	KNO₃	MgSO₄·7H₂O	KH₂PO₄	Ca(NO₃)₂·4H₂O
T1	8.7	5.3	5.4	5.1
T2	6.9	4.2	4.3	4.1
T3	5.2	3.2	3.3	3.0

Table 2 Effects of different quantitative nutrient management on the growth characteristics of mini radish in different growing seasons

处理	叶长/cm				叶片数				胚轴直径/cm
处理	春季	秋季		冬季	春季	秋季		冬季	春季	秋季		冬季
T1	13.2 a B	19.3 ab A		18.9 a A	7.1 a A	7.3 ab A		7.4 a A	2.2 a B	2.9 a A		2.3 a B
T2	12.5 ab B	20.8 a A		19.1 a A	7.0 a B	7.9 a A		7.9 a A	2.1 a B	3.0 a A		2.3 a B
T3	11.1 b B	17.6 b A		17.7 b A	6.9 a AB	6.7 b B		7.7 a A	2.0 a A	2.1 b A		2.2 a A
处理	地上部鲜重/g						地下部鲜重/g
处理	春季		秋季		冬季		春季		秋季		冬季
T1	12.8 a A		11.9 ab A		11.8 a A		54.5 a A		38.9 a B		32.5 a B
T2	13.1 a A		13.0 a A		10.3 ab B		53.7 a A		37.3 a B		33.8 a B
T3	8.8 b A		8.5 b A		8.9 b A		45.6 b A		27.7 b B		31.4 a B

Table 3 Effect of quantitative management of different nutrient solutions on the inorganic ion content of mini radish in spring

生长部位	处理	N含量/ (mg·g^-1)	P含量/ (mg·g^-1)	K含量/ (mg·g^-1)	Ca含量/ (mg·g^-1)	Mg含量/ (mg·g^-1)	$NO 3 -$ 含量/ (mg·kg^-1)
地上部	T1	56 a	4 a	44 a	51 a	9 a	1 745 a
	T2	51 b	4 a	35 b	47 a	8 a	1 560 a
	T3	49 b	3 a	36 b	46 a	8 a	980 b
地下部	T1	27 a	1 a	82 a	2 a	2 a	1 230 a
	T2	25 ab	1 a	76 b	2 a	2 a	773 b
	T3	23 b	1 a	75 b	2 a	2 a	1 020 a

Table 3 Effect of quantitative management of different nutrient solutions on the inorganic ion content of mini radish in spring

生长部位	处理	N含量/ (mg·g^-1)	P含量/ (mg·g^-1)	K含量/ (mg·g^-1)	Ca含量/ (mg·g^-1)	Mg含量/ (mg·g^-1)	$NO 3 -$ 含量/ (mg·kg^-1)
地上部	T1	56 a	4 a	44 a	51 a	9 a	1 745 a
	T2	51 b	4 a	35 b	47 a	8 a	1 560 a
	T3	49 b	3 a	36 b	46 a	8 a	980 b
地下部	T1	27 a	1 a	82 a	2 a	2 a	1 230 a
	T2	25 ab	1 a	76 b	2 a	2 a	773 b
	T3	23 b	1 a	75 b	2 a	2 a	1 020 a

Table 4 Effect of quantitative management of different nutrient solutions on the inorganic ion content of mini radish in autumn

生长部位	处理	N含量/ (mg·g^-1)	P含量/ (mg·g^-1)	K含量/ (mg·g^-1)	Ca含量/ (mg·g^-1)	Mg含量/ (mg·g^-1)	$NO 3 -$ 含量/ (mg·kg^-1)
地上部	T1	53 a	6 a	41 a	40 b	8 a	1 425 a
	T2	54 a	7 a	42 a	49 a	6 a	3 67 b
	T3	53 a	8 a	37 b	44 ab	7 a	1 308 a
地下部	T1	25 a	6 a	75 b	4 a	2 a	1 550 a
	T2	25 a	6 a	76 b	4 a	2 a	467 c
	T3	24 a	5 a	82 a	6 a	2 a	1 092 b

Table 4 Effect of quantitative management of different nutrient solutions on the inorganic ion content of mini radish in autumn

生长部位	处理	N含量/ (mg·g^-1)	P含量/ (mg·g^-1)	K含量/ (mg·g^-1)	Ca含量/ (mg·g^-1)	Mg含量/ (mg·g^-1)	$NO 3 -$ 含量/ (mg·kg^-1)
地上部	T1	53 a	6 a	41 a	40 b	8 a	1 425 a
	T2	54 a	7 a	42 a	49 a	6 a	3 67 b
	T3	53 a	8 a	37 b	44 ab	7 a	1 308 a
地下部	T1	25 a	6 a	75 b	4 a	2 a	1 550 a
	T2	25 a	6 a	76 b	4 a	2 a	467 c
	T3	24 a	5 a	82 a	6 a	2 a	1 092 b

Table 5 Effect of quantitative management of different nutrient solutions on the inorganic ion content of mini radish in winter

生长部位	处理	N含量/ (mg·g^-1)	P含量/ (mg·g^-1)	K含量/ (mg·g^-1)	Ca含量/ (mg·g^-1)	Mg含量/ (mg·g^-1)	$NO 3 -$ 含量/ (mg·kg^-1)
地上部	T1	46 b	3 a	38 b	50 a	9 a	400 c
	T2	48 ab	3 a	41 b	47 a	8 a	780 b
	T3	51 a	3 a	49 a	46 a	8 a	1 260 a
地下部	T1	18 a	2 a	72 a	2 a	2 a	450 a
	T2	18 a	2 a	75 a	2 a	2 a	480 a
	T3	16 a	3 a	76 a	2 a	2 a	453 a

Table 5 Effect of quantitative management of different nutrient solutions on the inorganic ion content of mini radish in winter

生长部位	处理	N含量/ (mg·g^-1)	P含量/ (mg·g^-1)	K含量/ (mg·g^-1)	Ca含量/ (mg·g^-1)	Mg含量/ (mg·g^-1)	$NO 3 -$ 含量/ (mg·kg^-1)
地上部	T1	46 b	3 a	38 b	50 a	9 a	400 c
	T2	48 ab	3 a	41 b	47 a	8 a	780 b
	T3	51 a	3 a	49 a	46 a	8 a	1 260 a
地下部	T1	18 a	2 a	72 a	2 a	2 a	450 a
	T2	18 a	2 a	75 a	2 a	2 a	480 a
	T3	16 a	3 a	76 a	2 a	2 a	453 a

Fig.1 Changes in nitrate concentration in nutrient solution under different treatments in three seasons

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