Effect of dredging river mud and plant ash residue as substrate on rice seedling quality

doi:10.16178/j.issn.0528-9017.20230100

Abstract

Abstract:

The mud produced by the dredging of rural rivers has high organic matter content, and the stacking or landfill treatment not only affects the environment but also causes waste of resources. If it can be used as a culture substrate, waste can be turned into treasure. In this study, Nanjing 9108 was used as the test rice variety, and the rice seedling substrate was made from rural river mud and plant ash residue, and the effects of different ratios of seedling substrate on seedling quality were explored. Compared with the control and other treatments, 60% river mud +40% ash had the best seedling raising effect, and the seedling quality was higher than that of the other substrate treatments and controls, which could be used as a rice seedling raising substrate, which provided a feasible way for high value-added agricultural use of dredging river mud and plant ash.

Key words: dredging river mud, plant ash, rice, substrate, seedling quality

CLC Number:

S511

XIE Changyan, LI Qing, CHEN Chuan, DONG Qingjun, ZHANG Miao, ZHANG Ankang. Effect of dredging river mud and plant ash residue as substrate on rice seedling quality[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(4): 834-838.

Figures/Tables 9

References 13

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样品	铜/(mg·kg^-1)	锌/(mg·kg^-1)	铅/(mg·kg^-1)	镍/(mg·kg^-1)	镉/(mg·kg^-1)	铬/(mg·kg^-1)
河泥	2.55	3.61	11.25	3.47	0.10	4.75
草木灰渣	9.72	83.65	16.26	4.54	0.07	6.32

样品	铜/(mg·kg^-1)	锌/(mg·kg^-1)	铅/(mg·kg^-1)	镍/(mg·kg^-1)	镉/(mg·kg^-1)	铬/(mg·kg^-1)
河泥	2.55	3.61	11.25	3.47	0.10	4.75
草木灰渣	9.72	83.65	16.26	4.54	0.07	6.32

样品	pH值	电导率/ (mS·cm^-1)	有机质含量/ (g·kg^-1)	全氮含量/ (g·kg^-1)	全磷含量/ (g·kg^-1)	全钾含量/ (g·kg^-1)
河泥	8.83	0.54	27.08	6.68	2.61	4.15
草木灰渣	10.74	7.65	93.91	9.27	7.81	76.47

样品	pH值	电导率/ (mS·cm^-1)	有机质含量/ (g·kg^-1)	全氮含量/ (g·kg^-1)	全磷含量/ (g·kg^-1)	全钾含量/ (g·kg^-1)
河泥	8.83	0.54	27.08	6.68	2.61	4.15
草木灰渣	10.74	7.65	93.91	9.27	7.81	76.47

处理	河泥/%	草木灰渣/%
T1	100	0
T2	85	15
T3	60	40
T4	45	55
T5	30	70
T6	15	85
CK	0	0