Effects of self-developed soil conditioner on soil physiochemical properties and rice yield in coastal saline soil

doi:10.3969/j.issn.1004-1524.2021.05.14

Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (5): 885-892.DOI: 10.3969/j.issn.1004-1524.2021.05.14

• Environmental Science • Previous Articles Next Articles

Effects of self-developed soil conditioner on soil physiochemical properties and rice yield in coastal saline soil

ZHU Yun¹^,²(), GUO Bin², LIN Yicheng², FU Qinglin²^,^*(), LIU Chen², LI Ningyu², LI Hua²

1. College of Environmental and Resource Sciences, Zhejiang A&F University, Hangzhou 311300, China
2. Institute of Environment, Resources, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China

Received:2020-12-01 Online:2021-05-25 Published:2021-05-25
Contact: FU Qinglin

Abstract

Abstract:

In the present study, a pot experiment was conducted to investigate the effects of a self-developed soil conditioner with different application rates (0, 5.0, 7.5, 10.0, 12.5 g·kg^-1) on soil physiochemical properties and rice grain yield in coastal saline soil. It was shown that the values of soil pH, electrical conductivity (EC), and content of available K were significantly (P<0.05) decreased with application of soil conditioner compared with the control treatment without application of soil conditioner, while the contents of soil organic matter, total N, alkaline available N, available P, and N, P, K in rice straw and grains, and rice height, biomass and yield were significantly (P<0.05) increased. The effective panicles, grain number per panicle, plant height, 1 000-grain weight, biomass and yield of rice were significantly (P<0.01) negatively correlated with soil pH and EC, and were significantly (P<0.05) positively correlated with soil organic matter, total N, available N and available P. But, there was no significant correlation found within soil available K and the effective panicles, grain number per panicle, plant height, 1 000-grain weight, biomass and yield of rice. Among all the application rates, application of 10.0 g·kg^-1 soil conditioner exhibited the best performance. The results of this study could provide both theoretical and technical basis for the rational application of soil conditioner to improve coastal saline soil and increase rice yield.

Key words: soil conditioner, coastal saline soil, rice, soil electrical conductivity

CLC Number:

S156.4

ZHU Yun, GUO Bin, LIN Yicheng, FU Qinglin, LIU Chen, LI Ningyu, LI Hua. Effects of self-developed soil conditioner on soil physiochemical properties and rice yield in coastal saline soil[J]. Acta Agriculturae Zhejiangensis, 2021, 33(5): 885-892.

Figures/Tables 4

References 30

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处理 Treatment	秸秆Straw			籽粒Grain
处理 Treatment	N	P	K	N	P	K
CK-1	5.68±0.14 e	7.93 ±0.31 d	6.50±0.80 d	14.71±0.20 e	36.21±0.68 d	0.84±0.05 e
T1	6.81±0.14 c	9.69 ±0.27 c	8.20±0.50 c	15.69±0.10 d	42.35±0.41 c	0.90±0.06 d
T2	7.83±0.14 b	11.22±0.41 a	8.41±0.60 b	18.33±0.20 b	47.28±0.68 b	1.00±0.06 b
T3	8.51±0.19 a	11.87±0.31 a	8.85±0.40 a	19.57±0.30 a	51.12±0.54 a	1.13±0.04 a
T4	6.66±0.09 d	10.56±0.41 b	8.27±0.50 c	17.31±0.50 c	48.49±0.27 b	0.93±0.08 c

处理 Treatment	秸秆Straw			籽粒Grain
处理 Treatment	N	P	K	N	P	K
CK-1	5.68±0.14 e	7.93 ±0.31 d	6.50±0.80 d	14.71±0.20 e	36.21±0.68 d	0.84±0.05 e
T1	6.81±0.14 c	9.69 ±0.27 c	8.20±0.50 c	15.69±0.10 d	42.35±0.41 c	0.90±0.06 d
T2	7.83±0.14 b	11.22±0.41 a	8.41±0.60 b	18.33±0.20 b	47.28±0.68 b	1.00±0.06 b
T3	8.51±0.19 a	11.87±0.31 a	8.85±0.40 a	19.57±0.30 a	51.12±0.54 a	1.13±0.04 a
T4	6.66±0.09 d	10.56±0.41 b	8.27±0.50 c	17.31±0.50 c	48.49±0.27 b	0.93±0.08 c

处理 Treatment	有效穗数 Effective panicles	每穗粒数 Grain number per panicle	株高 Plant height/cm	千粒重 1 000-grain weight/g	每盆生物量 Biomass per pot/g	每盆产量 Yield per pot/g
CK-1	25±1 b	152±8 c	94.2±1.1 c	24.5±1.4 c	506.8±13.2 d	230.7±3.2 e
T1	25±1 b	162±11 bc	97.3±1.1 b	26.9±1.6 c	545.9±14.1 c	251.7±6.2 d
T2	26±1 a	167±10 ab	97.8±1.6 b	29.6±1.3 b	573.2±12.3 b	268.4±3.1 b
T3	27±1 a	179±9 a	102.5±3.0 a	32.3±1.1 a	601.5±13.4 a	284.8±4.1 a
T4	25±1 b	169±9 ab	100.3±2.0 a	30.6±1.5 ab	586.3±11.2 b	258.3±5.1 c

处理 Treatment	有效穗数 Effective panicles	每穗粒数 Grain number per panicle	株高 Plant height/cm	千粒重 1 000-grain weight/g	每盆生物量 Biomass per pot/g	每盆产量 Yield per pot/g
CK-1	25±1 b	152±8 c	94.2±1.1 c	24.5±1.4 c	506.8±13.2 d	230.7±3.2 e
T1	25±1 b	162±11 bc	97.3±1.1 b	26.9±1.6 c	545.9±14.1 c	251.7±6.2 d
T2	26±1 a	167±10 ab	97.8±1.6 b	29.6±1.3 b	573.2±12.3 b	268.4±3.1 b
T3	27±1 a	179±9 a	102.5±3.0 a	32.3±1.1 a	601.5±13.4 a	284.8±4.1 a
T4	25±1 b	169±9 ab	100.3±2.0 a	30.6±1.5 ab	586.3±11.2 b	258.3±5.1 c

指标Index	pH	EC	SOM	TN	AN	AP	AK
有效穗数Effective panicles	-0.564^**	-0.821^**	0.809^**	0.627^*	0.764^**	0.778^**	0.191
每穗粒数Grain number per panicle	-0.888^**	-0.801^**	0.718^**	0.841^**	0.877^**	0.864^**	-0.376
株高Plant height	-0.850^**	-0.830^**	0.584^*	0.901^**	0.730^**	0.815^**	-0.004
千粒重1 000-grain weight	-0.933^**	-0.908^**	0.788^**	0.939^**	0.934^**	0.944^**	-0.236
生物量Biomass	-0.964^**	-0.882^**	0.700^**	0.981^**	0.875^**	0.923^**	-0.109
产量Yield	-0.864^**	-0.939^**	0.910^**	0.863^**	0.968^**	0.964^**	-0.026

Effects of self-developed soil conditioner on soil physiochemical properties and rice yield in coastal saline soil

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